Shubnikov-de Haas oscillations and Fermi surface of τ-phase conductors

被引：5
|
作者：
Konoike, T [1 ]
Iwashita, K
Nakano, I
Yoshino, H
Sasaki, T
Nogami, Y
Brooks, JS
Graf, D
Mielke, CH
Papavassiliou, GC
Murata, K
机构：
[1] Osaka City Univ, Grad Sch Sci, Sumiyoshi Ku, Osaka 5588585, Japan
[2] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan
[3] Okayama Univ, Dept Phys, Okayama 7008530, Japan
[4] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA
[5] LANL, Natl High Magnet Field Lab, Los Alamos, NM 87545 USA
[6] Natl Hellen Res Fdn, Inst Theoret & Phys Chem, GR-11635 Athens, Greece
来源：
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2003年 / 18卷 / 1-3期
关键词：
Fermi surface; Shubnikov-de Haas oscillation; X-ray; superstructure;
D O I：
10.1016/S1386-9477(02)01004-4
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
tau-phase organic quasi-two-dimensional conductors have a 4-fold single Fermi surface (FS) from band calculation. At low temperature, the resistivity turns into semiconducting, whereas Shubnikov-de Haas oscillations (SdH) have been observed. The SdH signal includes two frequencies that are inconsistent with the band calculation. Recently, we found the superstructure of this salt below 245 K by X-ray study. This result may explain the contradiction between observation and calculation for the FS. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：188 / 189
页数：2
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