View : 14 Download: 0

Possible quantum Hall effect in a magnetic-field-induced phase transition in the quasi-one-dimensional CDW organic conductor, HMTSF-TCNQ

Title
Possible quantum Hall effect in a magnetic-field-induced phase transition in the quasi-one-dimensional CDW organic conductor, HMTSF-TCNQ
Authors
Murata, KeizoFukumoto, YuheiYokogawa, KeiichiKang, WounTakaoka, RyoTada, RyotaHirayama, H.Brooks, James S.Graf, DavidYoshino, HarukazuSasaki, TakahikoKato, Reizo
Ewha Authors
강원
SCOPUS Author ID
강원scopus
Issue Date
2015
Journal Title
PHYSICA B-CONDENSED MATTER
ISSN
0921-4526JCR Link1873-2135JCR Link
Citation
vol. 460, pp. 241 - 244
Keywords
Charge density wave (CDW)Magnetic-field-induced-CDWHMTSF-TCNQ
Publisher
ELSEVIER SCIENCE BV
Indexed
SCI; SCIE; SCOPUS WOS
Abstract
We have studied the angular dependence of magnetoresistance and Hall effect of the CDW organic conductor, HMTSF-TCNQ in order to see whether a magnetic-field-induced phase exists in the charge density wave (CDW) system, similarly to the magnetic-field-induced SDW phases in (TMTSF)(2)X. The anomaly in magnetoresistance was observed only around the pressure where the CDW is almost suppressed, i.e. around 0.8-1.1 GPa, but neither at low pressures (0 and 0.5 GPa) nor at high pressure above 2 GPa. This behavior is quite similar to that of (TMTSF)(2)X. At 1.1 GPa anomalies were found at fields of 0.2 T and 10 T. We speculate that at 1.1 GPa the field-induced phase is located between 0.2 T and 10 T, where 1D Fermi surface sheet and 20 Fermi-surface pocket are present. The R-xy shows plateau structure and R-xx was very small in the same region, suggestive of quantum Hall effect. (C) 2014 Elsevier B.V. All rights reserved.
DOI
10.1016/j.physb.2014.11.080
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE