Prof. (i.R.) Dr. Dieter Schweitzer

Ehemals 3. Physikalisches Institut, Universität Stuttgart

e-mail:  d.schweitzer@physik.uni-stuttgart.de

Arbeitsgebiete: Organische Leiter und Supraleiter sowie optische Spektroskopie und ODMR (Optische Detektion Magnetischer Resonanz) an organischen Molekülen und Molkülkristallen.                                                                  

Privatadresse: Lindenhofstr. 76a, 68163 Mannheim

e-mail:  dieterschweitzer@yahoo.de

  

1. Organische Metalle und Supraleiter

Materialien, die aus organischen Molekülen bestehen, sind im allgemeinen sehr gute Isolatoren, die weder den elektrischen Strom noch die Wärme gut leiten. Bereits vor ca. 50 Jahren haben aber Chemiker und Physiker erkannt, daß es möglich sein sollte, organische Materialien herzustellen, die den elektrischen Strom ähnlich wie klassische Halbleiter oder Metalle leiten können. Heute existieren derartige organische Halbleiter, Metalle und sogar Supraleiter, wenn auch ihr Einsatz im täglichen Leben bisher nur vereinzelt zu beobachten ist. Organische Metalle werden überwiegend mit elektrochemischen Methoden hergestellt, wobei im Fall der sogenannten Radikalkationensalze ein Elektronendonor - wie z.B. das BEDT-TTF-Molekül - als organische Komponente eingesetzt wird, während bei den Anionensalzen ein organischer Elektronenakzeptor bei der Herstellung verwendet wird.

Organische Metalle, die praktisch alle elektronischen Eigenschaften der herkömmlichen Metalle zeigen, sind andererseits sehr viel leichter als klassische Metalle, besitzen aber nicht deren mechanische Stabilität und Elastizität. Unter den organischen Metallen gibt es heute etwa 90 verschiedene Materialien, die bei tiefen Temperaturen auch supraleitend werden, d.h. den elektrischen Strom ohne Widerstand leiten. Der prinzipielle Aufbau organischer Supraleiter, in zweidimensionalen elektronisch leitenden Schichten, ist denen der sogenannten Hochtemperatursupraleiter auf der Basis der keramischen Kupferoxyde sehr ähnlich, wenn auch ihre Sprungtemperatur in den supraleitenden Zustand mit -260 Grad C (oder 13 K) - gegenüber der von ca. -100 Grad C (ca. 170 K) bei den anorganischen keramischen Hochtemperatursupraleitern - deutlich kleiner ist. Trotz dieser geringen Sprungtemperatur für den supraleitenden Zustand sind die organischen Supraleiter für die Grundlagenforschung heute von besonderem Interesse, da auf Grund der Tatsache, dass hier sehr reine, relativ große und gegen Umwelteinflüsse sehr beständige Einkristalle hergestellt werden können, eine ganze Reihe von Experimenten zu Fragen der Grundlagenforschung dieser Metalle durchgeführt werden können. Da in den letzten Jahren gezeigt werden konnte, dass einerseits gepresste polykristalline Proben dieser organischen Supraleiter praktisch die selben elektronischen Eigenschaften besitzen wie Einkristalle, andererseits sogar Dünnfilme von organischen Metallen und Supraleitern hergestellt werden konnten, sind diese Materialien prinzipiell auch für Anwendungen interessant und außerdem für eine zukünftige Molekularelektronik von großem Interesse.

                          Zweidimensionale Schichtstruktur eines typischen organischen Metalls: (BEDO-TTF)2ReO4(H2O)

In Kooperation mit Chemikern werden die organischen Leiter auf elektrochemischem Wege hergestellt. In der Arbeitsgruppe wurden die elektronischen Eigenschaften von Einkristallen neuer organische Metalle und Supraleiter mit einer Vielfalt physikalischer Methoden untersucht. Es wurde z.B. die Temperaturabhängigkeit des spezifischen Widerstandes, des Magnetowiderstandes, der Suszeptibilität, der kritischen Ströme sowie der kritischen Felder im supraleitenden Zustand bestimmt. ESR-, Reflexions-, IR- und Raman-Spektroskopie wurden eingesetzt, um die elektronischen Eigenschaften des Leitungsbandes und eventuell auftretende Phasenübergängen zu untersuchen (siehe hierzu auch die Titel der Veröffentlichungen). Für die Grundlagenforschung sind dabei die Eigenschaften der extrem zweidimensionalen Fermi-Flächen organischer Metalle, die durch Quantenoszillationsexperimente bestimmt werden können, von besonderem Interesse.Es wurden außerdem Dünnfilme organischer Metalle und Supraleiter mit UHV-Anlagen hergestellt und deren elektronische Eigenschaften im Hinblick auf eine eventuelle Molekularelektronik untersucht.

                                    Quantenoszillationsexperiment (SdH-Signal) an einem k-(BEDT-TTF)2I3 Kristall.

 

2. Optische Spektroskopie und ODMR an organischen Molekülen und Molekülkristallen

Mit den Methoden der optischen Spektroskopie sowie der Optischen Detektion Magnetischer Resonanz (ODMR) wurden optisch angeregte elektronische Singulett- und Triplett-Zustände von organischen Modellmolekülen in kleiner Konzentration in Lösungen und Gläsern sowie in reinen Einkristallen untersucht. Es bestand dabei ein besonderes Interesse am elektronischen Ladungsübertrag in Donor- Akzeptor-Komplexen (auch Charge- Transferkomplexe genannt) sowie ganz allgemein an der zwischenmolekularen Wechselwirkung in Dimeren, Eximeren, Exiplexen und Cyclophanen. Derartige Wechselwirkungen äußern sich in starken Rotverschiebungen der Emissions-Spektren sowie in einer starken Reduzierung der Triplett-Nullfeld-Aufspaltungsparameter, so dass aus beiden Größen Aussagen über die Stärke der Wechselwirkungen gemacht werden können. Die Kenntnis der Stärke dieser Wechselwirkungen ist für molekularelektronische Anwendungen, aber auch für die Herstellung neuer organischer Halbleiter und Metalle von wesentlicher Bedeutung.

 

Veröffentlichungen ab dem Jahr 2000:

282.

Semimetallic and charge-ordered α-(BEDT-TTF)2I3: on the role of disorder in dc transport and dielectric properties        T. Ivek, M. Čulo, M. Kuveždić, B. Korin-Hamzić, E. Tutiš, M. Basletić, B. Mihaljević, E.Tafra, A. Löhle, M. Dressel,          D. Schweitzer, S.Tomić                                                                                                                                                        Phys. Rev. B 96. 75141 (2017).

281.

 “Electrically-induced Phase transition in α-(BEDT-TTF)2I3: Indications for Dirac-like hot charge carriers”.
T. Peteterseim, T. Ivek, D. Schweitzer and M. Dressel.                                                                                                  Phys. Rev. B. 93,245133 1-11 +Sub. Mat. 1-7 (2016).

.

280.


“Pressure-dependent optical investigations of α-(BEDT-TTF)2I3 : Tuning charge order and narrow gap towards a Dirac   semimetal”.                                                                                                                                                                           B. Beyer, A. Dengl, T. Peterseim R. Wackerow, T. Ivek, A.   V. Pronin, D. Schweitzer and  M.Dressel.                                 Phys. Rev. B. 93, 195116, 1-13 (2016). 

279.

“Electronic relaxor ferroelectricity in charge-ordered α-(BEDT-TTF)2I3 “
  P. Lunkenheimer, B. Hartmann, M. Lang, J. Müller, D. Schweitzer, S. Krohns, A.Loidl.                                                       Phys. Rev. B 91, 245132 (2015).

278.

“Magnetic ordering and charge  dynamics in κ-(BEDT-TTF)2Cu[N(CN)2]Cl”.                                                                     S. Tomić, M. Pinterić, T. Ivek, K. Sedlmeier, R. Beyer,  D. Wu, J. A. Schlueter, D. Schweitzer and                                     M. Dressel.                                                                                                                                                                            J. Phys. Condens.  Matter 25, 436004 (2013).

277.

“Magnetic Field-Induced Lattice Effects in a Quasi-2D Organic Conductor Close to the Mott Metal-Insulator Transition
  M. de Souza, A. Brühl, C. Strack, D. Schweitzer, M. Lang
  Phys. Rev. B 86, 085130 (2012)

276.

“Cooperative Dynamics in Charge-Ordered State of α-(BEDT-TTF)2I3”.                                                                                T. Ivek, I. Kovačević, M. Pinterić, B. Korin-Hamzić, S. Tomić, T. Knoblauch, D. Schweitzer, M. Dressel
  Physical Review B 86, 245125 (2012)

275.

“Different electronic transport regimes in the quas-two- dimensional   organic superconductors Kappa-(BEDTTTF)2X.”  Brandenburg J., Müller J., Schweitzer D. and Schlueter J.A.                                                                                         Phys. Status Solidi B 249, No. 5, 957 -961,  2012.                                                        

274.

“ Structural and Electronic Characteristics of a Novel BEDT-TTF Derivative:BEDT-TTF]2[Cu2Br3].”
  Schödel F., Tutsch U., Isselbächer F., Schweitzer D., Sänger I., Bolte M.,Bats J.W., Müller J., Lang M., Wagner M.,   Lerner H.-W.                                                                                                                                                                         Eur. J. Inorg. Chem. 2011, 1205 -1211, 2011.

273.

“ Electrodynamic response of the charge ordering phase: Dielectric and   optical studies of alpha- (BEDT-TTF)2I3.”         Ivek T., Korin-Hamzic B., Milat O., Tomic S., Clauss C., Drichko N., Schweitzer D. and Dressel   M.                                Phys. Rev. B 83, 165128, 1-13,   2011.

272.

"Collective Excitations in the Charge-Ordered Phase of alpha-(BEDT-TTF)2I3."
  Ivek T., Korin-Hamzic B., Milat O., Tomic   S., Clauss C., Drichko N., Schweitzer D. and Dressel M.
   Phys. Rev. Letters 104, 206406, 1 - 4, 2010.

271.

 "Searching for crystallographic superstructures in kappa-(BEDT-TTF)2CuN(CN)2]Br."
  Wolter A.U.B., Feyerherm R., Dudzik E. Süllow S., Strack Ch., Lang M., Schweitzer D.and Schlueter J.A.
  Physica B 405, 282 - 283, 2010.

270.

"Charge-order gap in alpha-(BEDT-TTF)2I3."
   Clauss C., Drichko N., Schweitzer D. and Dressel M.
   Physica B 405, 144 - 146, 2010.

269.

"Strongly enhanced 1/f-noice level in kappa-(BEDT-TTF)2X salts."
  Brandenburg J., Müller J., Wirth S., Schlueter J.A. and Schweitzer D.
  Physica B 405, 141 - 143, 2010

268.

"Anomalous Lattice Response at the Mott Transition in a Quasi-2D Organic Conductor."
  De Souza M., Brühl A., Strack Ch., Wolf B., Schweitzer D. and Lang M.
  Phys. Rev. Letters 99, 037003, 1 - 4, 2007.

267.

"Determining ethylene group disorder levels in kappa-(BEDT-TTF)2Cu[N(CN)2]Br."
  Wolter A.U.B., Feyerherm R., Dudzik E., Süllow S., Strack Ch., Lang M. and Schweitzer D.
  Phys. Rev. B. 75, 104512, 1 - 6, 2007.

266.

"Comparitive Transport and Thermal Expansion Studies on Quasi-2D Organic Superconductors Close to the Metal-To-Insulator Transition."
  Lang M., de Souza M., Brühl A., Strack Ch., Wolf B., Schlueter J., Müller J. and Schweitzer D.
  Physica C, 460-462, 129 - 132, 2007.

265.

“Electronic properties of the organic metals k-(BEDT-TTF)2I3 and kT-(BEDT-TTF)2I3”.                                                     Salameh B., Nothardt A., Balthes E., Schmidt W., Schweitzer D., Strempfer J., Hinrichsen B., Jansen M., Maude D.K. Phys. Rev. B. 75, 054509, 1-13, 2007

264.

“Intrinsic   versus extrinsic inelastic scattering contribution in k-(BEDT-TTF) 2Cu[N(CN 2)]Br – Transport measurements under hydrostatic pressure”.                                                                                                                                                   Strack Ch., Akinci C., Paschenko V., Wolf B., Uhrig E., Assmus W., Schreuer J., Wiehl L., Schlueter J., Wosnitza J., Schweitzer D. and Lang M.                                                                                                                                                    Comptes Rendus Chimie 10, 96 – 100, 2007.

263.

"Investigations of Quantum Oscillations in Theta- and Theta(T)-(BEDT-TTF) 2I3".
  Nothardt A., Balthes E., Schmidt W., Salameh B., Schweitzer D., Strempfer J. and Maude D. K.
  Journal of Low Temperature  Physics 142, 539 - 542, 2006.

262.

"Investigations of Field Induced Spin Density Waves in (TMTSF)2ReO4 by Shubnikov de Haas Measurements".
  Nothardt A., Balthes E, Salameh B., Schweitzer D. and Sheikin I.
  Journal of Low Temperature Physics 142, 481 - 484, 2006.

261.

"Resistivity Studies on Different  Variants of kappa-(BEDT-TTF)2Cu[N(CN2)]Br: Evidence for Disorder and/or Defect-Induced Inelastic Scattering Contributions".
  Lang M., Strack Ch., Akinci C., Wolf B., Schlueter J. A., Wosnitza J., Schweitzer D., Schreuer J. and Wiehl L.
  Journal of Low Temperature Physics 142, 191 - 196, 2006.

260.

"Resistivity studies under hydrostatic pressure on a low-resistance variant of the quasi-two-dimensional organic   superconductor k-(BEDT-TTF)2Cu[N(CN)2]Br: Search for intrinsic scattering contributions."
  Strack Ch., Akinci C., Pashenko V., Wolf B., Uhrig E., Assmus W., Lang   M., Scheurer J., Wiehl L., Schlueter J. A., Wosnitza J., Schweitzer D., Müller J. and Wykhoff J.
  Phys. Rev. B 72, 054511, 1 - 10, 2005.

259.

"Low integer Landau level filling factors n and indications for the fractional n = 1/2 in the 2D organic metal k-(BEDT-TTF)2I3."
  Balthes E., Schweitzer D. and Wyder P.
Solid State Com.136, 238 - 243, 2005.

258.

"Pressure studies on the low- resistance   variant of the quasi-2D organic super-conductor k-(BEDT-TTF)2Cu[N(CN)2]Br."   
  Lang M., Strack Ch., Akinci C., Wolf B., Schlueter J.A., Wosnitza J. and Schweitzer D.
  Physica B 359 - 361, 427 - 429, 2005.

257.

"Quantum oscillation measurements on the organic superconductor k-(BEDT-TTF)2I3."
  Nothardt A., Balthes E., Salameh B., Schmidt W., Schweitzer D., Strempfer J., Keimer B., and Maude D.
  Materials Science-Poland 22, 299 - 306, 2004.

256.

"Electron-electron correlations in (BEDT-TTF)2I3 organic superconductors."
  Balthes E., Nothardt A., Wyder P. and Schweitzer D.
  Materials Science-Poland 22, 285 - 298, 2004.

255.

"Transport properties of  [2.2]-paracyclophane thin films".
  Hu Wenping, Gompf B., Plaum J., Schweitzer D. and Dressel M.
  Appl. Phys. Lett. 84, 4720 - 4722, 2004.

254.

"AMRO measurements on the organic conductor (BEDT-TTF)4[Ni(dto)2]"
  Schmidt W., Hagel J., Balthes E., Wosnitza J. and Schweitzer D.
  J. Phys. IV France 114, 373 - 375, 2004.

253.

"SdH experiments on the organic superconductor k-(BEDT-TTF)2I3 under hydrostatic pressure"
  Nothardt A., Balthes E., Schmidt W., Schweitzer D., Kartsovnik M.V. and  Sheikin I.
  J. Phys. IV France 114, 351 - 353, 2004.

252.

"Pinning of vortices in the k-(BEDT-TTF)2X organic superconductors"
  Pasquier C., Joo N., Batail P., Schweitzer D. and Jérome D.
  J. Phys. IV France 1 14, 239 - 243, 2004.

251.

"First optical observation of superconducting gap in a-(BEDT-TTF)2I3."
  Drichko N., Haas P., Gorshunov B., Schweitzer D. and Dressel M.
  Synthetic Metals 137, 1321 - 1322, 2003.

250.

"Synthesis of the highly 1D conductor (THTTF)4I19"
  Montgomery L.K., Starkey K.P., Engel D.B., Bollinger J.,Tittelbach M., Schweitzer D., Heinen I., Koo H.-J. and Whangbo M.-H.
  Synthetic Metals, 133 - 134, 381 - 383, 2003.

249.

"Thermodynamic properties of quasi-two-dimensional organic superconductors".
  Wosnitza J., Wanka S., Hagel J., Reibelt M., Schweitzer D. and   Schlueter J.A.
  Synthetic Metals, 133 - 134, 201 - 203, 2003.

248.

"Quantum Oscillation Experiments on k-(BEDT-TTF)2I3 and (BEDT-TTF)4[Ni(dto)2]".   
  Balthes E., Schiller M., Schmidt W., Schweitzer D., Jansen A.G.M. and Wyder P.
  Synthetic Metals, 133 - 134, 87 - 89, 2003.

247.

"Sawtooth chemical potential oscillations in the strongly 2D organic metal k-(BEDT-TTF)2I3 at high Landau level filling factors."
  Balthes E, Wyder P. and Schweitzer D.
Solid State Communications 124, 141 - 145, 2002

246.

"Evidence of the superconducting energy gap in the optical spectra of  at-(BEDT-TTF)2I3."
  Drichko N., Haas P., Gorshunov B., Schweitzer D. and Dressel M.
  Europhysics Lett. 59, 774 - 778, 2002.

245.

"Electron correlations in the 2D organic metal k-(BEDT-TTF)2I3 at high Landau level filling factors".
  Balthes E., Wyder P. and Schweitzer D.
  Journal of Physics and Chemistry of Solids 63, 1249 - 1253, 2002.

244.

"Electronic Properties of   Quasi-Two-Dimensional Organic Metals."
  Balthes E., Schiller M., Schmidt W., Schweitzer D., Jansen A.G.M. and Wyder   P.
  In: Molecular Low Dimensional and Nanostructured Materials for Advanced   Applications; Eds. A. Graja, B.R. Bulka and F. Kajzar, NATO Science Series   (Kluwer Academic Publishers) II Mathematics, Physics and Chemistry-Vol.59,1-12, 2002.

243.

"Coherent vs incoherent interlayer   transport in layered metals."
  Wosnitza J., Hagel J., Qualls J.S., Brooks J.S., Balthes E, Schweitzer D., Schlueter J.A., Geiser U., Mohtasham J., Winter R.W. and Gard G.L.
  Phys. Rev. B. Rapid Comm. 65, 180506(R) (180506-1 - 180506-4), 2002.

242.

"Conducting Radical salts of the New Electron Donor Bis(1.3-cyclobutylenedithio) tetrathiafulvalene."
  Klausa T., Heinen I., Hübler M., Keller H.J., Kircher P., Löb I., Milbredt C., Pritzkow H., Schiller M., Schmidt W., Schweitzer D. and Strunz   W.
  Synthetic Metals, 122, 279 - 286, 2001.

241.

"Importance of Interlayer Effects for TC in k-(ET) 2X Superconductors."
  Müller J., Lang M., Schlueter J.A., Geiser U., Schweitzer D.
  Synthetic Metals, 120, 855-856, 2001.

240.

"Optical properties of the organic metal (BEDT-TTF)4[Ni(dto)2]."
  Griesshaber E, Haas P., Thoms J., Darjushkin A., Gorshunov B.P., Dressel M., Schweitzer D., Kremer R.K., Golnik, A. Bernhard C., Cardona M., Klausa T. and Strunz W.
  Synthetic Metals, 120, 731-732, 2001.

239.

"The specific heat of the two-dimensional organic superconductor k-(BEDT-TTF)2Cu[N(CN)2]Br."
  Wosnitza J., Elsinger H., Hagel J., Wanka S. And Schweitzer D.
  Synthetic Metals, 120, 705-706, 2001

238.

"Low-Frequency Dielectric Spectroscopy of Commensurate Density Waves."
  Tomic S., Pinteric M., Vuletic T., von Schütz J.U. and Schweitzer D.
  Synthetic Metals, 120, 695-698, 2001.

237.

"Unusual magnetic quantum oscillations in organic metals at high magnetic fields."
  Wosnitza J., Wanka S., Hagel J., Qualls J.S., Brooks J.S., Harrison N., Balthes E., Schweitzer D., Schlueter J.A., Geiser U. Mohtasham J., Winter R.W. and Gard G.L.;                                                                                                    Physica B., 294 -295, 442 - 446, 2001

236.

"Correlation gap in the optical spectra of the two-dimensional organic metal (BEDT-TTF)4[Ni(dto)2]."
  Haas P., Griesshaber E, Gorshunov B., Schweitzer D, Dressel M., Klausa T., Strunz W. and Assad F.F.
  Phys. Rev. B., Rapid Comm. 62, R14673-R14676, 2000.

235.

"Investigations of the Fermi surface of a new organic metal: (BEDT-TTF)4[Ni(dto)2]."
  Schiller M., Schmidt W., Balthes E., Schweitzer D., Koo H.-J., Whangbo M. H., Heinen I., Klausa T., Kircher P. and Strunz W.
  Europhysics Lett., 51, 82-88, 2000.

234.

"k-(BEDT-TTF)2Cu[N(CN)2]Br: A Fully Gapped Strong-Coupling Superconductor."
  Elsinger H., Wosnitza J., Wanka S., Hagel J., Schweitzer D. and Strunz W.
  Phys. Rev. Lett. 84, 6098-6101, 2000.

233.

"Interlayer dissipation in magnetic field for H || I in k-(BEDT-TTF)2I3."   
  Zuo F., Hagel J., Wanka S., Wosnitza J., Balthes E., Schweitzer D. and Strunz W.
  Physica C 333, 79-85, 2000.

232.

"Probing the Order Parameter of the Layered Organic Superconductor k-(BEDT-TTF)2Cu[N(CN)2]Br by Ac-susceptibility Measurements."
  Pinteric M., Tomic S., Prester M., Drobac D., Milat O., Maki K., Schweitzer D., Heinen I. and Strunz W.;
  Phys. Rev. B 61, 7033-7038, 2000.

231.

"In-Plane and out-of-plane superfluid  density of the layered organic superconductor k-(BEDT-TTF)2Cu[N(CN)2].Br"   
  Tomic S., Pinteric M., Maki K., Prester M., Drobac D., Milat O., Schweitzer D., Heinen I. and Strunz W.;
  J. Phys. IV France 10, Pr3, 161-166, 2000





Veröffentlichungen der Jahre 1965 bis 1999:

Diplom-Arbeit: "Die Anisotropie der elektrischen Leitfähigkeit von n-Typ Germanium in starken Gleich - und Mikrowellenfeldern." 1965.

Dissertation: "Dynamische Kernpolarisation an Phosphor-dotierten Silizium-Einkristallen im Temperaturbereich zwischen 1.2K und 4.2K." 1969.

Habilitation: "p -Elektronenwechselwirkung senkrecht zur aromatischen Ebene am Beispiel von Phanen." 1980.

Eds.: Brunner H., Hausser K. H. and Schweitzer D. "Magnetic Resonance and Related Phenomena." Proceedings  XIX Congress Ampere, Heidelberg 1976

1.

"The Anisotropy of Conductivity of n-Type Germanium in Strong D.C.Fields."
  Schweitzer, D. and Seeger, K.
  Z. Physik 183, 207-216, 1965.

    2.


"Energy Relaxation and Intervalley Relaxation of Hot Electrons in n-Type Germanium."
  Seeger, K. and Schweitzer, D.
  Proc. Internat. Conf. on the Physics of Semiconductors, Kyoto, 1966.
  J. Phys. Soc. Japan 21, Suppl., 415-419, 1966.

    3.


"Dynamic Nuclear Polarisation in P-Doped Silicon by Microwave Ultrasonics."
  Hausser, K. H. and Schweitzer, D.
  in: Magnetic Resonance and Radiofrequency Spectroscopy; Ed. P. Averbuch
  (Proc. XV Coll. Ampere, Grenoble 1968) 452-454, North-Holland Publishing Company, Amsterdam-London 1969.

4.

" 13C Nuclear Magnetic Relaxation Studies at 62 MHz."
  Jaeckle, H., Haeberlen, U. and Schweitzer, D.
  J. Magn. Resonance 4, 198-207, 1970.

5.

"Spin - Rotation Interaction and  Anisotropic Chemical Shift in 13CS2 ."
  Spiess, H. W., Schweitzer, D., Haeberlen, U. and Hausser, K. H.
  J. Magn. Resonance 5, 101-108, 1971.

6.

"Spin Echo Experiments on 13C,1H, 2H and 19F in Some Small Molecules in the Liquid Phase."
  Haeberlen, U., Spiess, H. W. and Schweitzer, D.
  J. Magn. Resonance 6, 39-54, 1972.

7.

"Characterisation of Protein Triplet States by Optical Detection of Magnetic Resonance."
  Zuclich, J., Schweitzer, D. and Maki, A. H.
  Biochem. and Biophys. Res. Communications 46, 1764-1768, 1972.

8.

"Kinetics of the Triplet State of 1,2-Dichloroquinoxaline from Microwave-Induced Phosphorescence Transients."
  Schweitzer, D., Zuclich, J.and Maki, A. H.
  Molec. Phys. 25, 193-209, 1973.

9.

"Wavelength-Dependent Triplet State Populating Mechanism of Naphthalene in Heavy Atom Hosts."
  Schweitzer, D., Zuclich, J. and Maki, A. H.
  Chem. Phys. Letters 18, 24-26, 1973.

10.

"Molecular Motion in Liquid Toluene from a Study of 13C and 2D Relaxation Times."
  Spiess, H. W., Schweitzer, D. and Haeberlen, U.
  J. Magn. Resonance 9, 444-460, 1973.

11.

"Optically Detected Magnetic Resonance of the Tryptophan Phosphorescent State in Native Proteins."
  Zuclich, J., Schweitzer, D. and Maki, A. H.
  Photochem. and Photobiol. 18, 161-168, 1973.

12.

"Nitrogen-15 NMR of Pyridine in High Magnetic Fields."
  Schweitzer, D. and Spiess, H. W.
  J. Magn. Resonance 15, 529-539, 1974.

13.

"Anisotropic Chemical Shift and Spin Rotation Constants of 15N from Liquid and Solid State NMR: Nitrobenzene."
  Schweitzer, D. and Spiess, H. W.
  J. Magn. Resonance 16, 243-251, 1974.

14.

"Nuclear Magnetic Shielding Tensor for 1H, 13C and 15N in Organic Solids."
  Spiess, H. W., Haeberlen, U., Kempf, J. and Schweitzer, D.
  in: Magnetic Resonance and Related Phenomena (Proc. XVIII Coll. Ampere, Nottingham   1994) Eds. P.S. Allen,     E.R. Andrew and C.A. Bates, University Notingham, p   543-544, 1974.

15.

" 15N and 13C Spin Lattice Relaxation in Neat Liquids at High Magnetic Fields."
  Schweitzer, D. and Spiess, H. W.
  in: Magnetic Resonance and Related Phenomena (Proc. XVIII Coll. Ampere, Nottingham   1994) Eds. P.S. Allen,     E.R. Andrew and C.A. Bates, University Notingham, p   543-544, 1974.

16.

"Transanular Interactions in [2.2]-Phanes as Studied by Magnetic Resonance and Optical Spectra."
  Schweitzer, D., Colpa, J. P., Behnke, J., Hausser, K. H., Haenel, M. and Staab, H. A.
  Chem. Phys. 11, 373-384, 1975.

17.

"Transanular Interactions in [2.2]-Phanes as Studied by Luminescence and Optical Detection of Magnetic Resonance."
  Schweitzer, D., Colpa, J. P., Hausser, K. H., Haenel, M. and Staab, H. A.
  J. of Luminescence 12/13, 363-368, 1976.

18.

"Elektronic Properties of Two Isomeric Charge Transfer-[2.2]- Paracyclophanes."
  Schweitzer, D., Hausser, K. H., Taglieber, V. and Staab, H. A.
  Chem. Phys. 14, 183-187, 1976.

19.

"Transanular Interaction in [2.2]-Phanes: [2.2](2,7)Pyrenophane."
  Schweitzer, D., Hausser, K. H., Kirrstetter, R. G. H. and Staab, H. A.
  Z. Naturforsch. 31a, 1189-1192, 1976.

20.

"Charge Transfer Phanes as Studied by ODMR and Optical Spectroscopy."
  Hausser, K. H. and Schweitzer, D.
  8 th Molecular Crystal Symposium, Ed. M. El-Sayed, Santa Barbara, p 144-149, 1977.

21.

"Transanular Interactions in [2.2]-Phanes: [2.2](4,4') Diphenylophane and [2.2](2,7) Fluorenophane."
  Schweitzer, D., Hausser, K. H. and Haenel, M. W.
  Chem. Phys. 29, 181-185, 1978.

22.

"Transanular Interactions in [2.2]-Phanes - Relation Between Spectroscopic Properties and Structural Parameters of [2.2]-Phanes."
  Colpa, J. P., Hausser, K. H. and Schweitzer, D.
  Chem. Phys. 29. 187-199, 1978.

23.

"Electronic Properties of the Triplet State of Fluorene, Carbazole, Dibenzo-furan and Dibenzothiophene (X-Traps)."
  Goldacker, W., Schweitzer, D. and Zimmermann, H.
  Chem. Phys. 36. 15-26, 1979.

24.

"Transanular Interaction in [2.2]- Phanes: Models for Dimers?"
  Goldacker, W., Hausser, K. H., Schweitzer, D. and Staab, H. A.
  J. of Luminescence 18/19, 415-419, 1979.

25.

"Investigations of the Excited Triplet States of [2.2]- and [3.3]- Paracyclophane."
  Melzer, G., Schweitzer, D., Hausser, K. H., Colpa, J. P. and Haenel,   M. W.
  Chem. Phys. 39, 229-235, 1979.

26.

"ODMR of Phanes and Charge Transfer Phanes."
  Schweitzer, D., Goldacker, W., Hausser, K. H. and Staab, H. A.
  Magnetic Resonance and Related Phenomena, Eds. E. Kundla, E. Lippmaa and T. Saluvere, p.150. Springer-Verlag, Berlin Heidelberg  New York 1979.

27.

"Molecular Structure and Spectroscopic Properties of Kekulene."
  Krieger, C., Diederich, F., Schweitzer, D. and Staab, H. A.
  Angew. Chem. 91, 733-735, 1979; Angew. Chem. Int. Ed. Engl. 18,   699-701,1979.

28.

"Triplet State Properties of Binary Mixed Crystals of Dibenzofuran and Fluorene."
  Schweitzer, D. and Zimmermann, H.
  Z. Naturforsch. 34a, 1185-1189, 1979.

29.

"[2.2]- and [3.3]-Tetrathiafulvalenophane."
  Ippen, J., Chu, T., Starker, B., Schweitzer, D. and Staab, H. A.
  Angew. Chem. 92, 51-52, 1980; Angew. Chem. Int. Ed. Engl. 19, 67-68, 1980.

30.

"Influence of an Identified Dimer Vibration on the Emission Spectrum of  [2.2]-Paracyclophane."
  Goldacker, W., Schweitzer, D., Dinse, K. P. and Hausser, K. H.
  Chem. Phys. 48, 105-111, 1980.

31.

"Electrochemically Generated Perileniumyl-Hexafluorophosphate and Hexafluoroarsenate: New One-Dimensional Metals."
  Keller, H. J., Nöthe, D., Pritzkow, H., Wehe, D., Werner, M., Koch, P. and Schweitzer, D.
  Mol. Cryst. Liq. Cryst. 62, 181-200, 1980.

32.

"ZFS-Tensor of the Triplet States of [2.2]-Phanes as Studied by ESR."
  Bär, M., Dinse, K. P., Goldacker, W., Hausser, K. H., Schweitzer, D., Zimmermann, H. and Krieger, C.
  Bulletin of Magnetic Resonance 2, 82,1981.

33.

"Optical Detection of Magnetic Resonance (ODMR) of Triple - Layered Phanes."
  Melzer, G., Schweitzer, D., Hausser, K. H., Staab, H. A. and Zapf, U.
  Bulletin of Magnetic Resonance 2, 130, 1981.

34.

"Optical Detection of Magnetic Resonance (ODMR) of Charge-Tranfer (CT) Phanes"
  Schweitzer, D., Hausser, K. H., Wahl, P. and Staab, H. A.
  Bulletin of Magnetic Resonance 2, 144, 1981.

35.

"Optical Detection of Magnetic Resonance (ODMR) of Naphthalenophanes."
  Schweitzer, D., Hausser, K. H., Blank, N. E. and Haenel, M. W.
  Bulletin of Magnetic Resonance 2, 145, 1981.

36.

"Spectroscopic Properties of Kekulene."
  Schweitzer, D., Hausser, K. H., Diederich, F,, Staab, H. A. and Vogler, H.
  EPS Abstracts 5A, 300-301, 1981, ed. J. Kowalski, G. zu Putlitz and H.G.Weber.

37.

"Doped Dialkylated Phenanzines: A Novel Series of Highly Conducting Organic Solids."
  Dietz, K., Flandrois, S., Keller, H. J., Koch, P., Queckbörner, J. , Schweitzer, D.
  Chemica Scripta 17. 93-94, 1981.

38.

"Electrochemical Synthesis of New One-Dimensional Metals: Radical Salts of Perylene."
  Keller, H. J., Nöthe, D., Pritzkow, H., Wehe, D., Werner, M., Harms, R. H., Koch, P. and Schweitzer, D.
  Chemica Scripta 17, 101 -102, 1981.

39.

"Spectral Reflectance of the One-Dimensional Organic Metals (Perylene) 2PF6•0.8CH2Cl2 and (Perylene)2(AsF6)1,1•0.7CH2Cl2."
  Wilckens, R., Geserich, H. P., Ruppel, W., Koch, P., Schweitzer, D. and Keller, H. J.
  Sol. State Comm. 41, 615-618, 1982.

40.

"Highly Conducting Perylene Radical Salts."
  Koch, P., Schweitzer, D., Harms, R.H., Keller, H.J., Schäfer, H., Helberg, H.W., Wilckens, R., Geserich, H. P. and Ruppel, W.
  Mol. Cryst. Liq. Cryst. 86,   87-101, 1982.

41.

"The Preparation of New Metallic Charge Transfer Complexes: Anthra 9.1-cd:10.5-c'd' bis 1.2-dithiol (TTA), -diselenol(TTS) and their Polyiodides."
  Endres, H., Keller, H. J., Queckbörner, J., Veigel, J. and Schweitzer,   D.
  Mol. Cryst. Liq. Cryst. 86, 111-122, 1982.

42.

"Electronic Properties of Kekulene."
  Schweitzer, D., Hausser, K. H., Vogler, H., Diederich, F. and Staab, H. A.
  Mol. Phys. 46, 1141-1153, 1982.

43.

"Electronic Properties of Triplet States of s-Tetrazines."
  Gückel, F., Schweitzer, D., Hausser, K. H. and Neugebauer, F. A.
  10 th Molecular Crystal Symposium, Ed. W. Siebrand, St. Jovite, Quebec, Canada, 1982, p. 106 -109, 1982.

44.

"Quasi One -Dimensional Metallic Perylene Radical Salts."
  Schweitzer, D. and Keller, H. J.
  10 th Molecular Crystal Symposium, Ed. W. Siebrand, St. Jovite, Quebec, Canada, 1982, p.258 - 261, 1982.

45.

"Electronic Properties of [3.3]-TTF-Phan TCNQ-Crystals."
  Schweitzer, D., Chu Taopen, Krieger, C. and Staab, H. A.
  Mol. Cryst. Liq. Cryst. 86, 323, 1982.

46.

"Structure of Anthra/9,1-cd: 10,5-c'd'/bis/1,2diselenole (TSA) and of its
  Partially Oxidized Metallic Polyiodide TSA I1.2 ."
  Endres, H., Keller, H. J., Queckbörner, J., Schweitzer, D. and Veigel,   J.
  Acta Cryst. B 38, 2855-2860, 1982.

47.

"Comparative Optical Investigations on the One-Dimensional Organic Metals (Perylene)2(PF6)1.1•0.8CH2Cl2,  (Pyrene)2(SbF6)1.4  and (Fluoranthene)2(AsF6 )0.2•(PF6)0.8."
  Geserich, H. P., Wilckens, R., Ruppel, W., Enkelmann, V., Wegner, G., Wieners, G., Schweitzer, D. and Keller, H. J.
  Mol. Cryst. Liq. Cryst. 93, 385 -393, 1983.

48.

"Electron-Spin-Echo Experiments on the One-Dimensional Conductor (Fluoranthenyl) 2(PF6)x(SbF6)1-x (x<O.5)."
  Sigg, J., Prisner, Th., Dinse, K. P., Brunner, H., Schweitzer, D.and Hausser, K. H.
  Phys. Rev. B 27, 5366 -5373, 1983.

49.

"Electric Conductivity and Thermopower of Quasi One-Dimensional (Perylene)2(AsF6 )0.75(PF6)0.35•0.85CH2Cl2 Crystals."
  Bender, K., Schweitzer, D. and Keller, H. J.
  Journal de Physique 44, Colloque C3, 1433-1436, 1983.

50.

"Electron-Spin Echo Determination of Spin Diffusion in the One- Dimensional Conductor (Fluoranthenyl)2(PF6)x(SbF6)1-x (x< 0.5)."
  Sigg, J., Prisner, Th., Dinse, K. P., Brunner, H., Schweitzer, D. and  Hausser. K. H.
  Journal de Physique 44, Colloque C3, 1421-1424, 1983.

51.

"Plasma Reflectance of the One-Dimensional Organic Metals of the Type (Arene)2XF6 (Arene =Perylene, Pyrene or Fluoranthene; X= P, As, Sb)."
  Geserich, H. P., Koch, B., Ruppel, W. Wilckens, R., Schweitzer, D., Enkelmann, V., Wegner, G., Wieners, G. and             Keller, H. J.
  Journal de Physique 44, Colloque C3, 1461-1464, 1983.

52.

"Magnetic Susceptibility under Pressure  and Anisotropy of Electrical Conductivity in Quasi One-Dimensional    (Perylene)2(AsF6)0.75(PF6 )0.35•0.85CH2Cl2."
  Moritz, I., Shaheen, S. A., Hardebusch, U., Schilling, J. S., Weger,   M. Bender,K.,  Schweitzer, D. and   Keller, H. J.
  Solid State Comm. 48, 281-285, 1983.

53.

"Cycloarenes, a New Class of Aromatic Compounds, Molecular Structure and Spectroscopic Properties of Kekulene."
  Staab, H. A., Diederich, F., Krieger, C. and Schweitzer, D.
  Chemische Berichte 116, 3504-3512, 1983.

54.

"[3.3] - and [4.4] (2.7) Pyrenophanes as Excimer Models: Synthesis, Molecular Structure and Spectroscopic Properties. "
  Staab, H. A., Riegler, N., Diederich, F., Krieger, C. and Schweitzer, D.
  Chemische Berichte 117, 246-259, 1984.

55.

"1,8-Di(pyrenyl)naphthalenes: Synthesis, Molecular Structure and Spectroscopic Properties."
  Wahl, P., Krieger, C., Schweitzer, D. and Staab, H. A.
  Chemische Berichte 117, 260-276, 1984.

56.

"ODMR of Triplet States of Cofacial Dimeric Zinc-Porphyrins."
  Gückel, F., Schweitzer, D., Collman, J. P., Benscosme, S., Evitt, E. and Sessler, J.
  Chemical Physics 86, 161-172, 1984.

57.

"(BEDT-TTF)2I3: A Two - Dimensional Organic Metal."
  Bender, K., Dietz, K., Endres, H., Helberg, H. W., Hennig, I., Keller,   H. J., Schäfer, H. W. and Schweitzer, D.
  Mol. Cryst. Liq. 107, 45-53, 1984.

58.

"Synthesis, Structure and Physical Properties of a Two -Dimensional Organic Metal, Di/bis(ethylenedithiolo)tetrathiofulvalene/triiodides; (BEDT-TTF)2I3."
  Bender, K., Hennig, I., Schweitzer, D., Dietz, K., Endres, H. and  Keller, H. J.
  Mol. Cryst. Liq. 108, 359-371, 1984.

59.

"Overhauser Effect Experiments on the Quasi One-Dimensional Conductor (Perylene)2PF6•2/3THF."
  Brunner, H., Hausser, K. H., Keller, H. J. and Schweitzer, D.
  Solid State Comm. 51, 107-109, 1984.

60.

"Modell für Excimere: Absorptions - und Emissionsspektren von [2.2] Phanen des Fluorens und 9-Fluorenons."
  Schweitzer, D. and Haenel, M. W.
  Chemische Berichte 118, 163-175, 1985.

61.

"a- and b-(BEDT-TTF)2I3:Two Modifications With Contrasting Groundstate Properties: Insulator and Volume Superconductor."
  Schwenk, H., Gross, F., Heidmann, C. P., Andres, K., Schweitzer, D. and Keller, H. J.
  Mol. Cryst. Liq. Cryst. 119, 329-336, 1985.

62.

"a- and b-(BEDT-TTF)2I3 :Two Dimensional Organic Metals."
  Hennig, I., Bender, K., Schweitzer, D., Dietz, K., Endres, H., Keller, H. J., Gleitz, A. and Helberg, H. W.
  Mol. Cryst. Liq. Cryst. 119, 337-441, 1985.

63.

"Optical Investigations of the Electrical Anisotropy of a-(BEDT-TTF)2I3 and b-(BEDT-TTF)2I3 ."
  Koch, B., Geserich, H. P., Ruppel, W., Schweitzer, D. and Keller, H. J.
  Mol. Cryst. Liq. Cryst. 119, 343-346, 1985.

64.

"Organic Metals from Simple Aromatic Hydrocarbons: Perylene Radical Salts."
  Schweitzer, D., Hennig, I., Bender, K., Endres, H. and Keller, H. J.
  Mol. Cryst. Liq. Cryst. 120, 213-220, 1985.

65.

"Electron Spin Echo Experiments on the Quasi One Dimensional Organic Metal: (Perylene)2X•2/3THF (X=AsF6, PF6)."
  Meenenga, D., Dinse, K. P., Schweitzer, D. and Keller, H. J.
  Mol. Cryst. Liq. Cryst. 120, 243_246, 1985.

66.

"TCNQ Salts of Planar Metal Complex Cations: Novel Molecular Conductors and Semiconductors."
  Endres, H., Bongart, A., Nöthe, D., Hennig, I., Schweitzer, D., Helberg, H. W. and Schäfer, H.
  Mol. Cryst. Liq. Cryst. 120, 365-368, 1985.

67.

"b -(BEDT-TTF)2I3:  A New Organic Volume Superconductor at Ambient Pressure."
  Schwenk, H., Heidmann, C. P., Gross, F., Hess, E., Andres, K., Schweitzer, D. and Keller, H. J.
  Phys. Rev. B 31, 3138-3140, 1985.

68.

"Electrocrystallisation and Structures of Perylene Radical Salts: (Perylene)2ClO4 and (Perylene)2PF6 2/3THF."
  Endres, H., Keller, H. J., Müller, B. and Schweitzer, D.
  Acta Cryst. C 41, 607-613, 1985.

69.

"A Novel Molecular Metal: (Oxamide oximato) (Oxamide oxime)nickel (II)-Tetracyanoquinodimethanide, Ni(oaoH(oaaH)2TCNQ and Physical Properties of its Semiconducting Pt-Analogue."
  Endres, H., Bongart, A., Nöthe, D., Hennig, I., Schweitzer, D., Schäfer, H. and Helberg, H. W.
  Z. Naturforsch. 40b, 489-495, 1985.

70.

"Preparation, Structure and Physical Properties of BEDT-TTF Trihalides."
  Endres, H., Hiller, M., Keller, H. J., Bender, K., Heinen, I. and Schweitzer, D.
  Z. Naturforsch. 40b, 1664-1671, 1985.

71.

"Preparation, Structure and Physical Properties of BEDT-TTF Nitrates."
  Weber, A., Endres, H., Keller, H. J., Gogu, E., Heinen, I., Bender, K. and Schweitzer, D;                                    Z.Naturforsch. 40b, 1658-1663, 1985.

72.

"Modelle für Amin-Aromaten-Exciplexe: p-p- versus n-p-Wechselwirkung bei isomeren [2]Naphthalino[2](2,6)-pyridinophanen und [2]-Naphthalino-[2](2,6)-pyridinophan-1,11-dienen."
  Haenel, M. W., Lintner, B., Benn, R., Rufinska, A., Schroth, G., Krüger, C., Hirsch, S., Irngartinger, H., Schweitzer, D.
  Chemische Berichte 118, 4884-4906, 1985.

73.

"Modelle für Amin-Aromaten-Exiplexe: Isomere [2]Naphthalino-[2](2,6)-pyrazinophane und [2]Naphthalino[2](2,6)-pyrazinophan-1,11-diene."
  Lintner, B., Schweitzer, D., Benn, R., Rufinska, A. und Haenel, M. W.
  Chemische Berichte 118, 4907-4921, 1985.

74.

"Radical Cation Salts of an Unsymmetrical BEDT-TTF Derivative: Molecular Structure and Physical Properties of (DIMET)2ClO4THF."
  Heid, R., Endres,H., Keller, H.J., Gogu, E., Heinen, I., Bender, K and Schweitzer,D.
  Z. Naturforsch. 40b, 1703-1710, 1985.

75.

"Observation of the Meissner Effect in the High TC(Pressure-)Phase of the Organic Superconductor b-(BEDT-TTF)2I3."
  Veith, H., Heidmann, C. P., Gross, F., Leif, A., Andres, K. and Schweitzer, D.
Solid State Comm. 56, 1015-1017,   1985.

76.

"Homogenous Superconducting State at 8.1 K Under Ambient Pressure in the Organic Conductor b-(BEDT-TTF)2I3."
  Creuzet, F., Creuzet, G., Jerome, D., Schweitzer, D. and Keller, H. J.
  J. de Physique Lettr. 46, L 1079-1085, 1985.

77.

"Magnetic-Field-Induced Transition and  Quantum Oszillations in Tetramethyl-tetraselenafulvalenium Perhenate, (TMTSF)2ReO4."
  Schwenk, H., Parkin. S. S. P., Schumaker, R., Greene, R. L. and Schweitzer, D.
  Phys. Rev. Lett. 56, 667-670, 1986..

78.

"Transanulare   Wechselwirkung bei [m.n] Phanen: Modelle für Amin-Aromaten-Exiplexe: [2](1,4)-Anthraceno[2](2,6)pyridinophan-1,13-dien."
  Haenel, M. W., Lintner, B. und Schweitzer, D.
  Z. Naturforsch. 41b, 223-230, 1986.

79.

"The High-T C Superconducting State of b-(BEDT-TTF)2I3 at Atmospheric Pressure: Bulk Superconductivity and Metastability."
  Creuzet, F., Jerome, D., Schweitzer, D. and Keller, H. J.
  Europhysics Lettr.1, 461-466, 1986.

80.

"Proton NMR Relaxation in the High T C Organic Superconductor b-(BEDT-TTF)2I3."
  Creuzet, F., Bourbonnais, C., Jerome, D., Schweitzer, D. and Keller, H. J.
  Europhysics Lettr. 1, 467-472, 1986.

81.

"Magnetic Suscepitbility of a- and b-Phases of (BEDT-TTF)2I3 Under Pressure."
  Rothaemel, B., Forro, L., Cooper, J. R., Schilling, J. S., Weger, M., Bele, P. Brunner, H., Schweitzer, D. and Keller, H. J.
  Phys. Rev. B 34, 704-712,1986.

82.

"ODMR of Triplet States of Organic Electron Donors."
  Grimm, H., Schweitzer, D., Hausser, K. H. and Keller, H. J.
  Extended Proc. XXIII   Congress Ampere on Magnetic Resonance, 228 -229, 1986. Eds. B. Maravigla, F. De Luca and R.Campanella, Istituto Superiore di Sanita, Roma 1986.

83.

"Point-Contact Spectra of the Organic Metal b-(BEDT-TTF)2I3."
  Nowak, A., Weger, M., Schweitzer, D. and Keller, H. J.
  Solid State Comm. 60, 199-205, 1986.

84.

"Thermal Expansion of the Organic Conductor b-(BEDT-TTF)2I3."
  Hamzic, B., Creuzet, G., Schweitzer, D. and Keller, H. J.
  Solid State Comm. 60, 763 -767, 1986.

85.

"Synthesis, Structure and Electrical Properties of the Two -Dimensional Organic Conductor (BEDT-TTF)2BrI2."
  Zhu Dao-Ben, Wang Ping, Wan Meixiang, Yu Zaholon, Zhu Nailue, Gärtner, S. and Schweitzer, D.
  Physica 143 B, 281 -284, 1986.

86.

"Radical Cation Salts of BEDT-TTF and an Unsymmetrical BEDT-TTF Derivative."
  Schweitzer, D., Bender, K., Endres, H., Gärtner, S., Heid, R., Heinen, I., Keller, H. J., Weber, A. and Weger, M.
  Physica 143 B, 285 -289, 1986.

87.

"Molecular Solids Containing BEDT-TTF and Structurally Related Transition Metal Complexes."
  Keller, H. J., Niebl, R., Nöthe, D., Schweitzer, D. and Weber, A.
  Physica 143 B, 301 -303, 1986.

88.

"Temperature and Angular Dependence of the Upper Critical Field in b-(BEDT-TTF)2I3 and its Deuterated Analogue."
  Heidmann, C. P., Andres, K. and Schweitzer. D.
  Physica 143 B, 357-359, 1986.

89.

"Two Superconducting Phases in the Organic Conductor: b-(BEDT-TTF)2I3."
  Creuzet, F., Bourbonnais, C., Creuzet, G., Jerome, D., Schweitzer, D. and Keller, H. J.
  Physica 143 B, 363 -365, 1986.

90.

"Investigation of a- and b-(BEDT-TTF)2I3 by Electron Energy - Loss Spectroscopy."
  Nücker, N., Fink, J., Schweitzer, D. and Keller, H. J.
  Physica 143 B, 482 - 484, 1986.

91.

"X-Ray Investigations of the Low-Temperature Phase of the Organic Metals  a- and b-(BEDT-TTF)2I3."
  Endres, H., Keller, H. J., Swietlik, R. Schweitzer, D. Angermund, K. and Krüger, G.
  Z. Naturforsch. 41a, 1319 -1324, 1986.

92.

"Electronic Spectra and Triplet State Properties of Superphane."
  Schweitzer, D., Hausser, K. H., Vogler, H., Staab, H.A. and   Boekelheide, V.
  Chem. Physics 110, 93 -101, 1986.

93.

"Electric Conductivity and Thermoelectric Power of Various Polypyroles."
  Bender, K. Gogu, E., Hennig, I., Schweitzer, D. and Münstedt, H.
  Synthetic Metals 18, 85 -88, 1987.

94.

"The Double Stack Structure of Bis/ 4,5-dimethyl-4',5'-ehtylene-dithiolo-tetrathiafulvalenium / Perchlorate, (DIMET)2ClO4."
  Endres, H., Heid, R., Keller, H. J., Heinen, I. and Schweitzer, D.
  Acta Cryst. C 43, 115 -117, 1987.

95.

"Two Superconducting Phases in the Organic Conductor: b-(BEDT-TTF)2I3."
  Creuzet, F., Bourbonnais, C., Creuzet, G., Jerome, D., Schweitzer, D., Keller, H. J.
  Synthetic Metals 19, 157-162, 1987.

96.

"The Electrical Anisotropy of the Organic Metals (BEDT-TTF)2(ClO4) and a-(BEDT-TTF)3(NO3)2."
  Koch, B., Geserich, H. P., Ruppel, W., Schweitzer, D. and Keller, H. J.
  Synthetic Metals 19, 179-184, 1987.

97.

"Frequency-Dependent Conductivity in Pure and Iodine-Doped a-(BEDT-TTF)2I3."
  Przybylski, M., Helberg, H. W., Schweitzer, D. and Keller, H. J.
  Synthetic Metals 19, 191-196, 1987.

98.

"Pressure Effect on the Magnetic Susceptibility of Low Dimensional Organic Conductors a-, b-(BEDT-TTF)2I3 and (TMTSF)2X (X= ClO4, PF6, ReO4)."
  Forro', L., Cooper, J. R., Rothaemel, B., Schilling, J. S., Weger, M., Schweitzer, D., Keller, H. J., Bechgaard, K.
  Synthetic Metals 19, 339-346, 1987.

99.

"NMR Study of the Quasi One-Dimensional Organic Metal: (Perylene)2(AsF6)0.75(PF6)0.35+0.85CH2Cl2."
  Wieland, J., Haeberlen, U., Schweitzer, D. and Keller, H. J.
  Synthetic Metals 19, 393-398, 1987.

100.

"Radical Cation Salts of an Unsymmetrical BEDT-TTF Derivative: DIMET.
  Bender, K., Endres, H., Gärnter, S., Gogu, E, Heid, R., Heinen, I., Keller, H. J., Kraatz, A. and Schweitzer, D.
  Synthetic Metals 19, 559-564, 1987.

101.

"New Charge Transfer Salts Containing BEDT-TTF and Structurally Related Transition Metal Complexes."
  Keller, H. J., Niebl, R., Nöthe, D., Schweitzer, D. and Weber, A.
  Synthetic Metals 19, 585-587, 1987.

102.

"Resistivity and Magneto -Resistance of the Organic Superconductor b-(BEDT-TTF)2I3 at Ambient Pressure for Current Flow Along the c-Axis."
  Cooper, J. R., Forro, L. and Schweitzer, D.
  Synthetic Metals 19, 1002, 1987.

103.

"Pulsed ESR-Investigation of the Organic Conductor (Perylenyl) (AsF6) 0.75(PF6) 0.35xO.85CH2Cl2."
  Dobbert, O., Prisner, T., Dinse, K. P., Schweitzer, D. and Keller, H.   J.
  Solid State Comm. 61, 499-502, 1987.

104.

"Raman - Studies of the Organic Superconductor b-(BEDT-TTF)2IAuI."
  Swietlik, R., Grimm, H., Schweitzer, D. and Keller, H. J.
  Z. Naturforsch. 42a, 603 -605, 1987.

105.

"Pressure Dependence of the Conduction Electron Spin Resonance Linewidth of a- and b-(BEDT-TTF)2I3."
  Forro, L., Sekretarczyk, G., Krupski, M., Schweitzer, D. and Keller, H. J.
  Phys. Rev. B. 35, 2501- 2504, 1987.

106.

"A Stable Superconducting State at 8K and Ambient Pressure in at -(BEDT-TTF)2I3."
  Schweitzer, D., Bele, P., Brunner, H., Gogu, E., Haeberlen, U., Hennig, I., Klutz, T., Swietlik, R., Keller, H.J.
  Z. Phys. B., Condensed Matter 67, 489- 495, 1987.

107.

"Determination of the Electron Phonon Coupling and the Superconducting Gap in b-(BEDT-TTF)2X crystals (X=I3, IAuI)."
  Nowack, A., Poppe, U., Weger, M., Schweitzer, D. and Schwenk, M.
  Z. f. Physik B., Condensed Matter 68, 41- 47, 1987.

108.

"The Effect of Disorder on the Conduction Electron Spin Resonance Linewidth of the a- and b-Phases of (BEDT-TTF)2I3."
  Forro, L., Schweitzer, D. and Keller, H. J.
Solid State Comm. 64, 771 -774, 1987.

109.

"Electronic Band Structure and Point Contact Spectroscopy of the Organic
  Superconductor b-(BEDT-TTF)2I3."
  Weger, M., Kübler, J. and Schweitzer, D.
  "Novel Superconductivity", p. 149 -157, Plenum Press, Eds. V.   Kresin and S. Wolf, 1987.

110.

"Structure of 3,6 -Dimethoxy-1,2,4,5-tetrazine and 3,6 -Bis -(1-arziridinyl)-1,2,4,5-tetrazine."
  Krieger, C., Fischer, H., Neugebauer, F. A., Gückel, F. and Schweitzer, D.
  Acta Cryst., C 43, 1412 -1415, 1987.

111.

"Electrochemically Prepared Radical Salts of BEDT-TTF: Molecular Metals and Superconductors."
  Schweitzer, D., Gogu, E., Hennig, I., Klutz, T. and Keller, H. J.
  Ber. Bunsenges. Phys. Chem. 91, 890-896, 1987.

112.

"Microwave Conductivity in the Pure and Iodine - Doped Organic Conductor a-(BEDT-TTF)2I3."
  Kremer, W., Helberg, H. W., Gogu, E., Schweitzer, D. and Keller, H. J.
  Ber. Bunsenges. Phys. Chem. 91, 896 -899, 1987.

113.

"Resonance Raman - Investigations of the Symmetric Stretching Mode of I3 Anions in a- and b-(BEDT-TTF)2I3."
  Swietlik, R., Schweitzer, D. and Keller, H. J.
  Phys. Rev. B 36, 6881-6888, 1987.

114.

"Large Third - Order Optical Nonlinearity   of the Organic Metal a-(BEDT-TTF)2I3."
  Huggard, P. G., Blau, W. and Schweitzer, D.
  Appl. Phys. Lett. 51, 2183 -2185, 1987.

115.

"BEDT-TTF Radical Salts: Organic Metals and Superconductors."
  Schweitzer, D.
  "Springer Series of Solid    State Science 76,   Electronic Properties of Conjugated Polymers.", Eds. H. Kuzmany, M.   Mehring and S. Roth, p. 354 -362, 1987, Springer Verlag.

116.

"Metallic Coordination Polymers Using CS2 as Starting Material."
  Keller, H. J., Klutz, T., Münstedt, H., Renner, G. and Schweitzer, D.
  "Springer Series of Solid State Science 76,Electronic Properties of Conjugated Polymers.", Eds. H. Kuzmany,             M. Mehring and S. Roth, p. 338 -340, 1987. Springer Verlag.

117.

"Molecular Metals and Superconductos: BEDT-TTF Radical Salts."
  Schweitzer, D. and Keller, H. J.
  Organic and Inorganic Low Dimensional Crystalline Materials, p. 219-229,
  Eds. P. Delhaes and M. Drillon, Plenum Publ. Corp. 1987.

118.

"Existence of Two Phases in b-(BEDT-TTF)2I3: Proof by Resonance Raman Spectroscopy."
  Swietlik, R., Schweitzer, D. and Keller, H. J.
  Organic and Inorganic Low Dimensional Crystalline Materials, p. 325-328,
  Eds. P. Delhaes and M. Drillon, Plenum Publ. Corp. 1987.

119.

"Ecited Electronic States of Flavin -Containing Coenzyme Models."
  Gückel, F., Schweitzer, D., Becker, K., Schirmer, R. H., Zipplies, M. F. and Staab, H. A.
  Flavins and Flavoproteins IX, p. 59-67, Eds. D. E. Edmondson and D. B.McCormic, Walter de Gruyter u. Co., Berlin, New York, 1987.

120.

"Electronic Interactions Between Polycyclic Arenes in Cyclophanes."
  Haenel, M. W. and Schweitzer, D.
  Am. Chem. Soc.: Advances in Chemistry Series 217, Polynuclear Aromatic Compounds, Ed. L. B. Ebert, p. 333-355, 1988.

121.

"The Effect of Disorder on the Metal Insulator and Superconductor Phase Transitions in the a- and b-Phases of (BEDT-TTF)2I3."
  Forro, L., Bouffard, S. and Schweitzer, D.
Solid State Comm. 65, 1359-1362,   1988.

122.

"Superconductivity at 10K and Ambient Pressure in the Organic Metal (BEDT-TTF)2Cu(SCN)2."
  Gärtner, S., Gogu, E., Heinen, I., Keller, H. J., Klutz, T. and   Schweitzer, D.
  Solid State Comm. 65, 1531-1534, 1988.

123.

"1,3,5Tris(dimethylamino)benzol mit Jod und 1,3,5 Tricyanobenzol:
  Eine ungewöhnliche Dimerisierung und ein "normaler"   Donor/Akzeptor-Komplex."
  Keller, H. J., Niebel, R., Renner, G., von der Ruhr, D. and Schweitzer, D.
  Z. Naturforsch. 43b, 265-270, 1988.

124.

"Temperature and Pressure Dependence of the Resisitivity of b-(BEDT-TTF)2X (X =I3, I AuI) and a-(BEDT-TTF)2I3."
  Weger, M., Bender, K., Klutz, T., Schweitzer, D., Gross, F., Heidmann, C. P., Probst, Ch. and Andres, K.
  Synthetic Metals 25, 49-58, 1988.

125.

"Critical Fields of the Ambient Pressure Stable Superconducting State at 8K of the Organic Metal at-(BEDT-TTF)2I3."
  Gogu, E., Schweitzer, D. and Keller, H. J.
  Physica C. 153-155, 491-492, 1988.

126.

"NMR Investigations of the Organic Metals and Superconductors a-(BEDT-TTF)2I3, b-(BEDT-TTF)2I3 and at-(BEDT-TTF)2I3."
  Hennig, I., Haeberlen, U., Heinen, I., Schweitzer, D. and Keller, H.   J.
  Physica C. 153-155, 493-494, 1988.

127.

"Static- and ESR-Susceptibilities of the Ambient Pressure Superconductors b-, a-(BEDT-TTF)2I3 and (BEDT-TTF)2Cu(SCN)2."
  Klotz, S., Schilling, J. S., Gärtner, S. and Schweitzer, D.
Solid State Comm. 67, 981-984, 1988.

128.

"Superconductivity at Ambient Pressure in BEDT-TTF Radical Salts."
  Schweitzer, D., Polychroniadis, K., Klutz, T., Keller, H. J., Hennig, I., Heinen,I., Haeberlen, U., Gogu, E. and Gärtner, S.
  Synthetic Metals 27, A465-472, 1988.

129.

"Optical Study of the Transformation of the a-Phase of (BEDT-TTF)2I3 into the Superconducting at-Phase (TC=8K)."
  Helberg, H. W., Schweitzer, D. and Keller, H. J.
  Synthetic Metals 27, A347-352, 1988.

130.

"Infrared Spectra of the BEDT-TTF and DIMET Salts with NO3 and ClO4 Anions."
  Swietlik, R., Schweitzer, D. and Keller, H. J.
  Materials Science, XIV (4), 39-44, 1988.

131.

"Donor/Akzeptor - Komplexe aus 1,3,5 -Tris(dimethylamino)benzol und 1,2,3,4,5,6-Hexacyanobenzol."
  Keller, H. J., Niebl, R., Renner, G., von der Ruhr, D., Kilic, K. und   Schweitzer, D.
  Z. Naturforsch. 44b, 327-332, 1989.

132.

"Superconductivity in Polycrystalline Pressed Samples of Organic Metals."
  Schweitzer, D., Gärtner, S., Grimm, H., Gogu, E. and Keller, H. J.
  Solid State Comm. 69, 843-845, 1989.

133.

"BEDT-TTF Salts with Square Platinates(II) as Counter Ions: (BEDT-TTF)4Pt(C2O4)2 , a New Organic Metal."
  Gärtner, S., Heinen, I., Schweitzer, D., Nuber, B. and Keller, H. J.
  Synthetic Metals, 31, 199-213, 1989.

134.

"FT - IR Absorption Spectra of Polycrystalline Pressed Samples of the Organic Metals and Superconductors a-(BEDT-TTF)2I3, b-(BEDT-TTF)2I3 and k- (BEDT-TTF)2Cu(NCS)2."
  Zamboni, R., Schweitzer, D., Keller, H. J. and Taliani, C.
  Z. Naturforsch. 44a, 295-299, 1989.

135.

"Superconductivity at 7.5K and Ambient Pressure in Polycrystalline Pressed Samples of b-(BEDT-TTF)2I3."
  Schweitzer, D., Gogu, E., Grimm, H., Kahlich, S. and Keller, H. J.
  Angew. Chemie, Adv. Mater. 101, 977-979, 1989.

136.

"Some Electronic Properties of the Organic Superconductor b-(BEDT-TTF)2I3."
  Cooper, J. R., Forro, L., Korin-Hamzic, B., Miljak, M. and Schweitzer, D.
  J. Phys. France 50, 2741-2749, 1989.

137.

"Zero - Field Splittings of the Two Lowest Excited Electronic States in Crystalline Ru(bpy)3X2 with X=PF6, ClO4 ."
  Yersin, H., Gallhuber, E., Hensler, G. and Schweitzer, D.
  Chem. Phys. Lett., 161, 315-320, 1989.

138.

"Zero - Field Splitting of the Lowest   Excited State of Os(bpy)2+ Doped into Ru(bpy)3(P6)2."
  Braun, D., Schweitzer, D. and Yersin, H.
  J. Phys. Chem., 93, 7555-7556, 1989.

139.

"Polarized Resonant Raman Scattering in the Superconducting Regime of Single Crystals of (BEDT-TTF)2Cu(NCS)2."
  Zamboni, R., Schweitzer, D. and Keller, H. J.
Solid State   Comm., 73, 41 - 44, 1990.

140.

"Bulk Superconductivity at Ambient Pressure in Polycrystalline Pressed Samples of Organic Metals"
  Schweitzer, D., Kahlich, S., Gärtner, S., Gogu, E., Grimm, H., Zamboni, R.   and Keller, H. J.
  The Physics and Chemistry of Organic Superconductors (Eds: G. Saito and S. Kagoshima) Springer Proc. in      Physics 51, 146 - 149, 1990; Springer Ver.

141.

"Far Infrared Response of a-and at-(BEDT-TTF)2I3."
  Zelezny, V., Petzelt, J., Swietlik, R., Gorshunov, B. P., Volkov, A. A., Kozlov, Schweitzer, D. and Keller, H. J.
  J. Phys. France 51, 869 - 881, 1990.

142.

"Bulk Superconductivity in Polycrystalline Pressed Samples of at-(BEDT-TTF)2I3 and b-(BEDT-TTF)2I3."
  Schweitzer, D., Kahlich, S., Gärtner, S., Gogu, E., Grimm, H.,   Zamboni, R. and Keller, H. J.
  Mol. Cryst. Liqu. Cryst. 181, 279-284, 1990.

143.

"BEDT-TTF Salze mit quadratischen Platinaten(II) als Gegenionen: [BEDT-TTF]4[Pt(CN4)] ."
  Gärtner, S. Heinen, I. Keller, H. J., Niebel, R., Nuber, B. and Schweitzer,   D.
  Z. Naturforsch. 45b, 763-774, 1990.

144.

"Structural Aspects of Organic Superconductors."
  Schweitzer, D.
  "Electronic Properties of High-T C Superconductors an Related   Compounds",
  Eds. H. Kuzmany, M. Mehring, J. Fink, Springer Series of Solid State Sciences 99, 408-413, 1990, Springer Verlag.

145.

"Investigations of the Transport Properties of the Organic Superconductors b-(BEDT-TTF)2I3 and bt-(BEDT-TTF)2I3."
  Kahlich, S., Schweitzer, D. and Keller, H. J.
  Solid State Comm., 76, 933-936, 1990.

146.

"Proton Relaxation in the Superconducting Organic Solid k-(BEDT-TTF)2Cu(SCN)2"
  Klutz, T., Haeberlen, U. and Schweitzer, D.
  25. Congress AMPERE on Magnetic Resonance and Related Phenomina, Extended Abstracts, Eds. M. Mehring,        J.U.von Schütz and H. C. Wolf; Springer Verlag, p. 251-252, 1990.

147.

"Proton Spin Lattice Relaxation in the Organic Superconductor k-(BEDT-TTF)2Cu(SCN)2: Evidence for Relaxation by Localized Paramagnetic Centers."
  Kutz, T., Haeberlen, U. and Schweitzer, D.
  J. Phys.: Condens. Matter 2, 10417-10434, 1990.

148.

"Band Structure Calculation and Tunneling Measurements in (BEDT-TTF)2X (X=I3, IAuI)."
  Weger, M., Nowack, A., Schweitzer, D., Kübler, J., Van Bentum, J. M., and Sommers, C. S.;                                 Organic   Superconductors, Eds.: V. Z. Kresin and W. A. Little, Plenum Press, New York, 211- 219, 1990.

149.

"Transport Properties of Single Crystals and Polycrystalline Pressed Samples of (BEDT-TTF)2X Salts and Related Coordination Polymers".
  Schweitzer, D., Kahlich, S., Gärtner, S., Gogu, E., Grimm, H., Heinen, I., Klutz,T., Zamboni, R., Keller, H. J. and Renner, G.
  Lower Dimensional Systems and Molecular Electronics, Eds. R. M. Metzger, P. Day and G. Papavassilliou, Plenum Publ. Corp. NATO ASI Series B248, 97-114, 1991.

150.

"Organic Metals from Chiral BEDT-TTF Donors".
  Chen Benming, Deilacher, F., Hoch, M., Keller, H. J., Wu Peiji, Gärtner, S., Kahlich, S. and Schweitzer, D.
  Lower Dimensional Systems and Molecular Electronics, Eds. R. M. Metzger,P. Day and G. Papavassilliou, Plenum Publ. Corp. NATO ASI Series B248, 175-180, 1991.

151.

"Raman Investigations on Single Crystals and Polycristalline Pressed Samples of Organic Superconductors."
  Zamboni, R., Schweitzer, D. and Keller, H. J.
  Lower Dimensional Systems and Molecular Electronics, Eds. R. M. Metzger, P. Day and G. Papavassilliou, Plenum Publ. Corp. NATO ASI Series B248, 239-244, 1991.

152.

"Point Contact Spectroscopy Measurements on at-(BEDT-TTF)2I3."
  Weger, M., Nowack, A. and Schweitzer, D.
  Synthetic Metals, 42, 1885-1891, 1991.

153.

"Microwave Conductivity in Polycrystalline (BEDT-TTF)2I3 Material."
  Müller, G., Helberg, H. W., Schweitzer, D. and Keller, H. J.
  Synthetic Metals, 42, 1999 - 2004, 1991.

154.

"Investigations of the Thermally Induced Structural Phase Transformation from the Organic Metal a-(BEDT-TTF)2I3 to the Superconductor at-(BEDT-TTF)2I3 ."
  Kahlich, S., Gärtner, S., Schweitzer, D. and Keller, H. J.
  Synthetic Metals, 42, 2019-2024, 1991.

155.

"(BEDT-TTF)2X (TCE) 0.5(X: BF4, FSO3, IO3 ): New Organic Metals."
  Armbruster, K., Bele, P., Brunner, H., Chen Benming, Dahm, S., Geiger,   R., Heinen, I., Keller, H. J. and Schweitzer, D.
  Synthetic Metals, 42, 2025 - 2028, 1991.

156.

"Microwave Hall Mobility and Conductivity in Crystals of Various (BEDT-TTF) Radical Salts."
  Dressel, M., Helberg, H. W. and Schweitzer, D.
  Synthetic Metals, 42, 2043-2046, 1991.

157.

"Detection of CH2 Stretch Vibrations in a -, at- and b-(BEDT-TTF)2I3 by FT-IR Absorption Spectroscopy."
  Gärtner, S., Schweitzer, D. and Keller, H. J.
  Synthetic Metals, 42, 2059- 2062, 1991.

158.

"Organic Metals from Chiral BEDT-TTF Donors."
  Chen Benming, Deilacher, F., Hoch, M., Keller, H. J., Wu Peiji, Armbruster, K., Geiger, R., Kahlich, S., Schweitzer, D.
  Synthetic Metals, 42, 2101-2105, 1991.

159.

"Proton Relaxation in the Organic Superconductor (BEDT-TTF)2Cu(SCN)2."
  Klutz, T., Haeberlen, U., Schweitzer, D. and Keller, H. J.
  Synthetic Metals, 42, 2115- 2118, 1991.

160.

"(FT-NIR) Raman Scattering in Pressed Pellets of BEDT-TTF Based Organic Metals"
  Zamboni, R., Schweitzer, D. and Keller, H. J.
  Synthetic Metals, 42, 2241-2244, 1991.

161.

"CH 2 Vibrations in Radical Cation Salts Based on the Donor BEDT-TTF".
  Gärtner, S., Schweitzer, D. and Keller, H. J.
  Synthetic Metals, 44, 227 -236, 1991.

162.

"Knight Shift Tensors and Spin Densities in the Organic Metals at-(BEDT-TTF)2I3 and (BEDT-TTF)2Cu(NCS)2 ".
  Klutz, T., Hennig, I., Haeberlen, U. and   Schweitzer, D.
  Applied Magnetic Resonance 2, 441 - 463, 1991

163.

"(BEDO-TTF)2ReO4(H2O): A New Organic Superconductor".
  Kahlich, S., Schweitzer, D., Heinen, I., Song En Lan, Nuber, B.,Keller, H. J., Winzer, K. and Helberg, H. W.,
  Solid State Comm., 80, 191- 195, 1991.

164.

"Spectroscopic Investigations of the Lowest Triplet State of s-Tetrazines".
  Gückel F., Maki A. H., Neugebauer F. A., Schweitzer D. and Vogler H.
  Chem. Phys. 164, 217-227, 1992.

165.

"Pressure Dependence of the Resistivity of (BEDO -TTF)2ReO4(H2O).
  Kahlich, S., Schweitzer, D. Auban-Senzier, P. Jerome, D. and Keller H. J.
  Solid State Comm. 83, 77-79, 1992.

166.

"Point Contact Spectroscopy Measurements on at -(BEDT-TTF)2I3 : An Alternative Interpretation."
  Weger, M., Nowack, A. and Schweitzer, D.
  Fiz. Nizk. Temp. 18, 580 - 584, 1992; (Sov. J. Low Temp. Phys. 18, 580).

167.

"Electrical Transport in the Organic Superconductor b -(BEDT-TTF)2IAuI :
  Influence of X-Ray Induced Defects on the Normal Phase and Superconducting Ground State".
  Dolanski Babic, B., Biskup, N., Tomic, S. and Schweitzer, D.
  Phys. Rev. B. 46, 11765 - 11771, 1992.

168.

"Resonant Raman Scattering from Superconducting Single Crystals of (BEDT-TTF)2I3 ".
  Pokhodnia, K. I., Graja A., Weger M. and Schweitzer D.
  Z. Phys. B - Condensed Matter, 90, 127- 133, 1993.

169.

"Preparation and Physical Properties of Highly Conducting Metal (M = Ni, Co, Cu) Coordination Polymers".
  Dahm, S., Strunz, W., Keller, H. J. and Schweitzer, D.
  Synthetic Metals, 55, 884-889, 1993.

170.

"Assignment of Fundamental Vibrations and Estimation of Electron – Molecular Vibration Coupling Constants for   Bis(ethylenedioxy)-tetrathiafulvalene (BEDO-TTF).
  Pokhodnia, K. I., Kozlov, M. E., Onischenko, V. G., Schweitzer, D., Moldenhauer, J. and Zamboni R.
  Synthetic Metals, 56, 2364- 2371, 1993.

171.

"Superconducting Gap Excitations in Crystals of (BEDT-TTF)2I3 Type Studied by Resonant Raman Scattering".
  Graja, A., Pokhodnia, K. I., Weger, M. and Schweitzer, D.
  Synthetic Metals, 56, 2477- 2482, 1993.

172.

"Temperature Dependent Resistivity Under Pressure and Magnetoresistance Data of the Organic Superconductor (BEDO-TTF)2ReO4(H2O).
  Kahlich, S., Schweitzer, D. Auban-Senzier, P., Jerome, D. and Keller, H. J.
  Synthetic Metals, 56, 2483- 2488, 1993.

173.

"FT-IR Investigations of BEDO-TTF and Radical Salts of BEDO-TTF".
  Moldenhauer, J., Pokhodnia, K.I., Schweitzer, D., Heinen, I. and Keller, H.J.
  Synthetic Metals, 56, 2548-2553, 1993.

174.

"FT-IR Investigations of (BEDT-TTF)2I3 Radical Salts.
  Moldenhauer, J., Pokhodnia, K. I., Schweitzer, D. and Keller, H. J.
  Synthetic Metals, 56, 2554-2559, 1993.

175.

"New Radical Salts of BEDO -TTF: Structures and Electronic Properties of Organic Metals and Superconductors".
  Schweitzer, D., Kahlich, S., Heinen, I., Song En Lan, Nuber, B., Keller, H. J., Winzer, K. and Helberg, H. W.
  Synthetic Metals, 56, 2827- 2832, 1993.

176.

"Superconductivity in Polycrystalline Pressed Pellets of k-(BEDT-TTF)2I3 ".
  Balthes, E., Breining, A., Kahlich, S., Moldenhauer, J., Schweitzer, D.,  Bele, P., Brunner, H., Heinen, I., Nuber, B. and Keller, H. J.
  Synthetic Metals, 56, 2859-2864, 1993.

177.

"FT-IR Absorption Spectroscopy of  BEDT-TTF Radical Salts: Charge -Transfer and Donor-Anion Interaction."
  Moldenhauer,J., Horn, C., Pokhodnia, K.I., Schweitzer, D., Heinen,I. and Keller, H.J.
  Synthetic Metals, 60, 31- 38, 1993.

178.

"De Haas-van Alphen Effekt in the Organic Superconductor k-(BEDT-TTF)2I3   ."
  Heinecke, M., Winzer, K. and Schweitzer D.
  Z. für Physik B, Condensed Matter, 93, 45 - 50, 1993.

179.

"Freezout of the Electrical Resistivity in (BEDT-TTF)2I3 below 20K."
  Weger, M., Tittelbach, M., Balthes, E., Schweitzer, D. and Keller, H.J.
  J. Phys.: Condensed Matter, 5, 8569-8578, 1993.

180.

"Zero Bias Anomalies in Point - Contact Characteristics of a-(BEDT-TTF)2I3 ."
  Ernst G., Novack A., Weger M. and Schweitzer D.
  Europhys. Lett., 25, 303-309, 1994.

181.

"A Photoemission Study of c -Axis Oriented Thin Films of a-(BEDT-TTF)2I3   ."
  Söderholm S., Loppinet B. and Schweitzer D.
  Synthetic Metals, 62, 187-192, 1994.

182.

"Field and Frequency Dependent Transport in the Two - Dimensional Organic Conductor a-(BEDT-TTF)2I3 ."
  Dressel M., Grüner G., Pouget J. P., Breining A. and Schweitzer D.
  J. Phys. I France 4, 579-594, 1994.

183.

"Characterisation of the Fermi Surface and Phase Transitions of (BEDO-TTF)2ReO4(H2O) by Phyical Property Measurements and Electron Band Structure Calculations." 
  Kahlich S., Schweitzer D., Rovira C., Paradis J.A., Whangbo M.H., Heinen I., Keller H.J., Nuber B.. Bele P., Brunner H., Shibaeva R.P.                                                                                                                                                                          Z. für Physik B 94, 39-47, 1994.

184.

"Cs Deposition on c-Axis-Oriented Thin Films of a-(BEDT-TTF)2I3: Evidence for Electron Doping and Intercalation."
  Söderholm S., Loppinet B. and Schweitzer D.
  Synthetic Metals, 65, 65 - 69, 1994.

185.

"Organische Supraleiter: Chemische Physik."
  Dressel M., Schweitzer D. and Keller H. J.
  Physikalische Blätter, 50, 1145 - 1148, 1994.

186.

"Specific Heat of the Organic Superconductor k-(BEDT-TTF)2I3."
  Wosnitza J., Liu X., Schweitzer D. and Keller H. J.
  Phys. Rev. B. 50, 12747-12751, 1994.

187.

"Magnetically Modulated Microwave Absorption (MMMA) at Low Magnetic Fields in (BEDT-TTF)-Superconductors."
  Bele P., Brunner H., Schweitzer D. and Keller H. J.
  Solid State Com. 92, 189 - 193, 1994.

188.

"Polarized IR reflectance studies of the organic superconductor (BEDO-TTF)2ReO4(H2O)."
  Sommer W., Moldenhauer J., Schweitzer D., Heinen I. and Keller H. J.
  Synthetic Metals, 68, 133 - 139, 1995.

189.

"Thin Films of the Organic Superconductor at-(BEDT-TTF)2I3."
  Moldenhauer J., Wachtel H., Schweitzer D., Gompf B., Eisenmenger W., Bele P., Brunner H. and Keller H. J.
  Synthetic Metals, 70, 791 - 792, 1995.

190.

"Fermiology and thermodynamic properties of k-(BEDT-TTF)2I3."
  Wosnitza J., Herrmann N., Liu X. and Schweitzer D.
  Synthetic Metals, 70, 829 - 830, 1995.

191.

"Magnetic Field Dependence of the Cyclotron Effective Mass in the Organic Superconductor in k-(BEDT-TTF)2I3."
  Balthes E., Schweitzer D., Heinen I., Keller H. J., Biberacher W., Jansen A.G.M. and Steep E.;                          Synthetic Metals, 70, 841 - 842, 1995.

192.

"Investigations of Fermi Surfaces and Cyclotron Effective Masses of Organic Superconductors by Shubnikov de Haas (SdH)- and de Haas van Alphen (dHvA)-Measurements."
  Schweitzer D., Balthes E., Kahlich S., Heinen I., Keller H.J., Strunz W.,
  Biberacher W., Jansen A. G. M. and Steep E.
  Synthetic Metals, 70, 857 - 860, 1995.

193.

"Electronic Properties of the Organic Superconductor (BEDO-TTF)2ReO4(H2O)."
  Kahlich S., Sommer W., Schweitzer D., Heinen I., Keller H. J., Rovira C., Paradis J. A. and Whangbo M.-H.
  Synthetic Metals, 70, 865 - 866, 1995.

194.

"Freezeout of the Electrical Resistivity of (BEDT-TTF)2I3 below 20K."
  Weger M. and Schweitzer D.
  Synthetic Metals, 70, 889 - 894, 1995.

195.

"Non-Linear Transport in a-(BEDT-TTF)2I3."
  Dressel M., Grüner G., Pouget J.P., Breining A. and Schweitzer D.
  Synthetic Metals, 70, 929 - 930, 1995.

196.

"Thermopower of Deuterated and Alloyed Cu-DCNQI-Crystals: Evidence for a 'Quite Normal Reentry' of the Conductivity."
  Bauer D., Meier B., Schweitzer D. and von Schütz J. U.
  Synthetic Metals, 71, 1887 - 1888, 1995.

197.

"Investigations of Fermi Surfaces and Effective Masses of the Organic Superconductors (BEDO-TTF)2ReO4(H2O) and k-(BEDT-TTF)2I3 by Shubnikov-de Haas (SdH)- and de Haas-van Alphen (dHvA)- Measurements."
  Schweitzer D., Balthes E., Kahlich S., Heinen I., Keller H. J., Strunz   W., Biberacher W., Jansen A. G. M. and Steep E.
  Acta Physica Polonica, 87, 749 - 759, 1995.

198.

"Magnetic Field Dependent Effective Mass in the Organic Superconductor k-(BEDT-TTF)2I3.
  Balthes E., Schweitzer D., Heinen I., Keller H.J., Biberacher W., Jansen  A.G.M. and Steep E.
  Acta Physica Polonica, 87, 767 - 772, 1995.

199.

"Resonance Raman Investigations of Low Energetic Modes in The Organic Superconductors at-(BEDT-TTF)2I3 and b-(BEDT-TTF)2IAuI."
  Ludwig T., Schweitzer D. and Keller H.J.
  Acta Physica Polonica, 87, 801 -806, 1995.

200.

"Fabrication and Characterisation of Thin Films of the Organic Superconductor at-(BEDT-TTF)2I3."
  Moldenhauer J., Wachtel H., Schweitzer D., Gompf B., Eisenmenger W., Bele P., Brunner H. and Keller H. J.
  Acta Physica Polonica, 87, 823 - 827, 1995.

201.

"Oscillation Phenomena on the Magnetoresistance of the Organic Superconductor k-(BEDT-TTF)2I3."
  Helm P., Kraak W., Schweitzer D. and Keller H. J.
  Phys. Stat. Sol. (b) 189, 509 - 520, 1995.

202.

"Electron Phonon Interaction in the Organic Superconductors at-(BEDT-TTF)2I3 and   b-(BEDT-TTF)2IAuI."
  Ludwig T., Schweitzer D. and Keller H. J.
  Solid State Com. 96, 961 - 965, 1995.

203.

"Electronic Structure of at-(BEDT-TTF)2I3: A Photemission Study."
  Söderholm S., Varekamp P. R. and Schweitzer D.
  Phys. Rev. B. 52, 9629 -9636, 1995.

204.

"Anomalous Behavior of Magneto-Quantum Oscillations in the Organic Superconductor k-(BEDT-TTF)2I3."
  Balthes E., Schweitzer D., Heinen I., Keller H. J., Strunz W., Biberacher W., Jansen A. G. M. and Steep E.
  Z. für Physik (Condensed Matter) B. 99, 163 - 171, 1996.

205.

"Thin Films of the Organic Conductor (BEDO-TTF)2.4I3."
  Niebling U., Moldenhauer J., Ludwig T., Schweitzer D. and Strunz W.
  Solid State Comm., 97, 837 - 842, 1996.

206.

"Critical Fields and Mixed-State Properties of the layered organic superconductor k-(BEDT-TTF)2I3."
  Wanka S., Beckmann D., Wosnitza J., Balthes E., Schweitzer D., Strunz   W. and Keller H. J.
  Phys. Rev. B., 53, 9301 - 9309, 1996.

207.

"Effect of High Hydrostatic Pressure on the Magnetoresistance Quantum Oscillations of the Quasi-Two-Dimensional   Organic Superconductor k-(BEDT-TTF)2I3."
  Helm P., Kraak W. and Schweitzer D.
  Phys. stat. sol. (b), 195, 237 - 249, 1996.

208.

"Thin Films of BEDT-TTF and BEDO-TTF Radical Salts."
  Moldenhauer J., Niebling U., Ludwig T., Thoma B., Schweitzer D., Strunz   W., Keller H. J., Bele P. and Brunner H.
  Mol. Cryst. Liqu. Crystals 284, 161 -182, 1996.

209.

"The Fermi Surfaces of b-(BEDT-TTF)2X."
  Wosnitza J., Goll G., Beckmann D., Wanka S., Schweitzer D. and Strunz   W.
  J. Phys. I France 6, 1597 - 1608, 1996.

210.

"Fermi Surface of Organic Metals and Superconductors (ET)2I3."
  Wosnitza J., Beckmann D., Goll G. and Schweitzer D.
  Synthetic Metals, 85, 1479 - 1480, 1997.

211.

"Anomalous Behaviour of Magneto-Quantum  Oscillations in k-(BEDT-TTF)2I3."
  Balthes E., Schweitzer D., Heinen I., Keller H. J., Strunz W., Jansen   A. G. M. and Steep E.
  Synthetic Metals, 85, 1549 - 1551, 1997.

212.

"Superconducting and Mixed-state Properties of k-(BEDT-TTF)2I3."
  Wosnitza J., Wanka D., Beckmann J., Hagel J., Balthes E., Schweitzer D., Strunz  W. and Keller H. J.
  Synthetic Metals, 85, 1557 -1558, 1997.

213.

"Resonance Raman Investigations of the electron phonon coupling in the organic superconductors b-(BEDT-TTF)2IAuI and k-(BEDT-TTF)2I3."
  Ludwig T., Schweitzer D. and Keller H. J.
  Synthetic Metals, 85, 1587 -1588, 1997.

214.

"Electronic Structure of the Organic Conductor a-(BEDT-TTF)2I3 Studied by Angle Resolved and Core Level Photoelectron Spectroscopy.”
  Söderholm S., Girard R. T. and Schweitzer D.
  Phys. Rev. B, 55, 4267 - 4274, 1997.

215.

"Temperature Dependent IR Reflectance Investigations of the Organic Superconductor (BEDO-TTF)2ReO4(H2O)."
  Grießhaber E., Moldenhauer J., Schweitzer D., Heinen I., Keller H. J. and Strunz W.;                                          Synthetic Metals, 87, 11 -17, 1997.

216.

"Vortex dynamics of the organic superconductor k-(BEDT-TTF)2Cu[N(CN)2]Br."
  Hagel J., Wanka S., Beckmann D., Wosnitza J., Schweitzer D., Strunz W. and Thumfart M.
  Physica C, 97, 213-222, 1997

217.

"Fermi Surface Studies in the Low- and High-TC Phase of the Organic Superconductor b-(BEDT-TTF)2I3."
  Beckmann D., Wanka S., Wosnitza J., Schweitzer D. and Strunz W.
  Zeitschr. für Physik B, 104, 207 - 214, 1997.

218.

"Anomalous Damping Effects of Magneto-quantum Oscillations in the Extremely 2D Electronic System k-(BEDT-TTF)2I3."
  Balthes E., Proust C., Audouard A., Brossard L., Schweitzer D., Heinen I.,
  Keller H.J., Strunz W., Jansen A.G.M. and Steep E.
  Synthetic Metals, 94, 3 - 9, 1998.

219.

"Preparation of Superconducting at-(BEDT-TTF)2I3 Thin Films by Structural Transformation of (BEDT-TTF)2I3 in an I2 Atmosphere."
  Niebling U., Steinl J., Schweitzer D. and Strunz W.
  Solid State Comm., 106, 505 - 507, 1998.

220.

"On the Stoichiometry of the Organic Metal Bis(ethylenedioxy)-tetrathiafulvalene Chloride".
  Beckmann D., Wanka S., Wosnitza J., Goll G., Drehmann B., Balthes E., Schweitzer D. and Strunz W.
  Eur. Phys. J. B 6, 329-333, 1998.

221.

"A study of the quasi-two-dimensional, spin-split Fermi liquid k-(BEDT-TTF)2I3 in strong magnetic fields".
  Harrison N., Mielke C. H., Rickel D. G., Wosnitza J., Qualls J. S.,   Brooks J. S., Balthes E., Schweitzer D., Heinen I. and Strunz W.
  Phys. Rev. B 58, 10248-10255, 1998.

222.

"Spin-split de Haas-van Alphen effect in two-dimensional electron systems"
  Itskovsky M. A., Askenazy S., Maniv T., Vagner I. D., Balthes E. and Schweitzer D.
  Phys. Rev. B. Rapid Comm., 58, R13347-R13350, 1998.

223.

"Superconducting state in the layered organic superconductor k-(BEDT-TTF)2Cu[N(CN)2]Br."
  Pinteric M., Prester M., Tomic S., Maki K., Schweitzer D., Heinen I., Strunz W.;                                                   Synthetic Metals 103, 1869-1872, 1999.

224.

"Collective charge response in the weak ferromagnetic phase of k-(BEDT-TTF) 2Cu[N(CN)2]Cl."
  Pinteric M., Biskup N., Tomic S., Schweitzer D., Strunz W. and Heinen   I.
  Synthetic Metals 103, 1937, 1999.

225.

"Dimensional Crossover of the Vortex Dynamics in k-(ET)2X Salts."
  Wanka S., Hagel J., Wosnitza J. and Schweitzer D.
  Synthetic Metals 103, 1996-1997, 1999.

226.

"Correlation between a new frequency (Fo=13.2T) and anomalous damping effects of magneto-quantum oscillations in the 2D organic superconductor k-(BEDT-TTF)2I3."
  Balthes E., Schiller M., Schweitzer D., Heinen I., Strunz W. Steep E., Jansen A.G.M. and Wyder P.
  Physica C 317-318, 108-116, 1999.

227.

"Infrared-reflectivity-measurements on the organic superconductors h8- and d8-k-(BEDT-TTF)2Cu[N(CN)2]Br."
  Grießhaber E., Schiller M., Schweitzer D., Heinen I. and Strunz W.
  Physica C 317-318, 421-424, 1999.

228.

"Indications for electron localization effects in the strongly 2D organic metal k-(BEDT-TTF)2I3 as observed by Shubnikov-de Haas experiments."
  Balthes E., Schiller M., Schweitzer D., Heinen I., Strunz W., Steep E., Jansen A.G.M. and Wyder P.
  Europhys. Lett. 47, 70-76, 1999.

229.

"Magnetic anisotropy and low-frequency dielectric response of weak ferromagnetic phase in k-(BEDT-TTF)2Cu[N(CN)2]Cl, where BEDT-TTF is Bis(ethylenedithio)-tetratiavulvalene"
  Pinteric M., Miljak M., Biskup N., Milat O., Aviani I.,Tomic S., Schweitzer D., Strunz W. and Heinen I.;
  Eur. Phys. J. B. Condensed Matter 11, 217-225, 1999.

230.

"Electron Spin Resonance Measurements on Single Crystals of the Organic Superconductor k-(BEDT-TTF)2I3".        Bele P., Brunner H., Heinen I. and Schweitzer D.
  Appl. Magn. Reson. 17, 481-488, 1999.



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