Volume 60, Number 5, December 2002
|Page(s)||737 - 742|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 November 2002|
The angular-dependent magnetoresistance in α-(BEDT-TTF)2
Department of Physics, Technical University
of Budapest H-1521 Budapest, Hungary
2 Max Planck Institute for the Physics of Complex Systems Nöthnitzer Str. 38, D-01187, Dresden, Germany
3 Department of Physics and Astronomy, University of Southern California Los Angeles, CA 90089-0484, USA
4 Institute of Physics - POB 304, HR-10001 Zagreb, Croatia
5 Department of Physics, Faculty of Science - POB 331, HR-10001 Zagreb, Croatia
6 Research Institute for Solid State Physics and Optics P.O. Box 49, H-1525 Budapest, Hungary
7 Walther-Meissner Institute - D-85748 Garching, Germany
8 European Synchrotron Radiation Facility - F-38043 Grenoble, France
Accepted: 18 September 2002
In spite of extensive experimental studies of the angular-dependent magnetoresistance (ADMR) of the low-temperature phase (LTP) of α-(BEDT-TTF)2 about a decade ago, the nature of LTP remains elusive. Here we present a new study of ADMR of LTP in α-(ET)2 salts assuming that LTP is unconventional charge density wave (UCDW). In the presence of magnetic field the quasi-particle spectrum in UCDW is quantized, which gives rise to striking ADMR in UCDW. The present model appears to account for many existing ADMR data of α-(BEDT-TTF)2 remarkably well.
PACS: 71.20.Rv – Polymers and organic compounds / 72.15.Gd – Galvanomagnetic and other magnetotransport effects / 71.45.Lr – Charge-density-wave systems
© EDP Sciences, 2002
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