Unusual anisotropy of negative Hall states in (TMTSF)(2)PF6

Authors
Citation
M. Rohde et W. Kang, Unusual anisotropy of negative Hall states in (TMTSF)(2)PF6, SYNTH METAL, 120(1-3), 2001, pp. 1057-1058
Citations number
15
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SYNTHETIC METALS
ISSN journal
0379-6779 → ACNP
Volume
120
Issue
1-3
Year of publication
2001
Pages
1057 - 1058
Database
ISI
SICI code
0379-6779(20010315)120:1-3<1057:UAONHS>2.0.ZU;2-8
Abstract
We report an unusual orientation dependence of the negative quantum Hall ef fect (QHE) phases of the organic conductor (TMTSF)(2)PF6. Rotations within the b-c crystallographic plane produce a strong enhancement of the negative QHE states as the sample is tilted away from the normal. For rotations wit hin the Q-c plane, an opposite but somewhat less pronounced effect is obser ved. However, no such orientation dependence is found in the positive QHE s tates. These results establish a fundamental difference between the negativ e and positive QHE states in (TMTSF)(2)PF6. We speculate on the possibility of charge ordering associated with the negative phases.