ANALYSIS OF DE-HAAS-VAN-ALPHEN OSCILLATIONS AND BAND-STRUCTURE OF AN ORGANIC SUPERCONDUCTOR, THETA-(BEDT-TTF)2I3

被引:26
|
作者
TAMURA, M
KURODA, H
UJI, S
AOKI, H
TOKUMOTO, M
SWANSON, AG
BROOKS, JS
AGOSTA, CC
HANNAHS, ST
机构
[1] UNIV TOKYO, FAC SCI, DEPT CHEM, BUNKYO KU, TOKYO 113, JAPAN
[2] NATL RES INST MET, MEGURO KU, TOKYO 153, JAPAN
[3] ELECTROTECH LAB, TSUKUBA, IBARAKI 305, JAPAN
[4] BOSTON UNIV, DEPT PHYS, BOSTON, MA 02215 USA
[5] MIT, FRANCIS BITTER NATL MAGNET LAB, CAMBRIDGE, MA 02139 USA
关键词
BEDT-TTF; ORGANIC SUPERCONDUCTOR; DE-HAAS-VAN-ALPHEN EFFECT; CYCLOTRON MASS; MAGNETIC BREAKDOWN; FERMI SURFACE;
D O I
10.1143/JPSJ.63.615
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Analysis of the temperature and field dependence of the de Haas-van Alphen oscillations in an organic superconductor theta-(BEDT-TTF)2I3 is presented. The cyclotron masses are estimated to be 2.0m(e) and 3.6m(e) for slow and fast oscillations, respectively. The indication of magnetic breakdown effect is discussed in terms of the geometry of the Fermi surface. The result is compared with those of the infrared reflectance spectra and the empirical tight-binding band calculations.
引用
收藏
页码:615 / 622
页数:8
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