MAGNETOTHERMOPOWER STUDY OF (TMTSF)2PF6 (WHERE TMTSF IS TETRAMETHYLTETRASELENAFULVALENE)

被引：10

作者：

KANG, W

HANNAHS, ST

CHIANG, LY

UPASANI, R

CHAIKIN, PM

机构：

[1] FRANCIS BITTER NATL MAGNET LAB,CAMBRIDGE,MA 02139

[2] EXXON RES & ENGN CO,ANNANDALE,NJ 08801

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.45.13566

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have performed a. thermoelectric-power study of the organic conductor (TMTSF)2PF6, which exhibits a type of bulk quantum Hall effect (QHE), resulting from a cascade of magnetic-field-induced spin-density-wave (FISDW) transitions. The FISDW are characterized by a sharp increase in thermopower as the temperature is lowered through the transition temperature, followed by an exponential decrease as temperature approaches zero. This suggest a temperature-dependent gap leading to collective QHE-like transport. Most surprising is the vanishing thermopower in the insulating "n=0" state.

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页码：13566 / 13572

页数：7

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