| Numéro |
J. Phys. IV France
Volume 114, April 2004
|
|
|---|---|---|
| Page(s) | 73 - 76 | |
| DOI | https://doi.org/10.1051/jp4:2004114013 | |
J. Phys. IV France 114 (2004) 73
DOI: 10.1051/jp4:2004114013
Hall effect in the normal phase of the organic conductors: (TMTSF) 2ReO 4 vs. (TMTTF) 2AsF 6
B. Korin-Hamzic1, 1, E. Tafra2, M. Basletic2, A. Hamzic1, L.-K. Montgomery3 and M. Dressel41 Institute of Physics, 10001 Zagreb, Croatia
2 Department of Physics, Faculty of Science, 10002 Zagreb, Croatia
3 Department of Chemistry, Indiana Univesity, Bloomington, USA
4 Physikalisches Institut, Universität Stuttgart, Germany
Abstract
We report Hall effect measurements performed in the
normal phase and at ambient pressure of (TMTSF)
2ReO
4 and (more
anisotropic) (TMTTF)
2AsF
6 quasi-1D organic conductors. For
T>200 K, the Hall coefficient of (TMTSF)
2ReO
4 is smoothly
temperature-dependent, and its value corresponds to a carrier concentration
of one hole/unit cell. On the other hand, the Hall coefficient of
(TMTTF)
2AsF
6 is enhanced above 220 K, and the corresponding
carrier concentration is almost 100 times lower than the expected one for
one hole/unit cell. Our results give evidence for the existence of a high
temperature regime above 200 K in (TMTTF)
2X salts, where the 1D
Luttinger liquid features appear in the transport properties.
Key words. Organic conductors, transport properties,
magnetotransport.
© EDP Sciences 2004