Quasi-one-dimensional Fermi surface of (TMTSF)2NO3

被引：12
|
作者：
Kang, W. [1 ]
Chung, Ok-Hee [2 ]
机构：
[1] Ewha Womans Univ, Dept Phys, Seoul 120750, South Korea
[2] Sunchon Univ, Dept Phys, Sunchon 540742, South Korea
来源：
PHYSICAL REVIEW B | 2009年 / 79卷 / 04期
关键词：
Fermi surface; magnetoresistance; organic compounds; semimetals; spin density waves; superconducting materials; DENSITY-WAVE STATE; TETRAMETHYLTETRASELENAFULVALINIUM NITRATE; ORGANIC SUPERCONDUCTOR; QUANTUM OSCILLATIONS; MAGNETORESISTANCE; (TMTSF)2REO4; DEPENDENCE; PERRHENATE; CONDUCTORS; TRANSITION;
D O I：
10.1103/PhysRevB.79.045115
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Stereoscopic angular dependence of the interlayer magnetoresistance of the Bechgaard salt (TMTSF)(2)NO3 is investigated under pressure. This compound is believed to be a semimetal having the quasi-two-dimensional Fermi surface (FS) at low temperature. Previously, a field-induced spin-density-wave (FISDW) transition was reported at 8.5 kbar above similar to 20 T, which is atypical with a closed FS. We present strong evidence that the FS of this compound remains quasi-one-dimensional under moderate pressure even in the presence of anion ordering. The occurrence of the FISDW is therefore unsurprising. In addition, the possibility of an anion ordering along the b axis will be discussed.
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页数：5
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