THE ORIGIN OF ANOMALOUS ANGULAR DEPENDENT MAGNETORESISTANCE OSCILLATION EFFECT IN ALPHA-(BEDT-TTF)2KHG(SCN)4

被引：51

作者：

IYE, Y

YAGI, R

HANASAKI, N

KAGOSHIMA, S

MORI, H

FUJIMOTO, H

SAITO, G

机构：

[1] UNIV TOKYO, FAC SCI, DEPT PHYS, TOKYO 113, JAPAN

[2] UNIV TOKYO, DEPT PURE & APPL SCI, MEGURO KU, TOKYO 156, JAPAN

[3] INT SUPERCOND TECHNOL CTR, NAGOYA RES DIV, SUPERCOND RES LAB, ATSUTA KU, NAGOYA 456, JAPAN

[4] KYOTO UNIV, FAC SCI, DEPT CHEM, SAKYO KU, KYOTO 606, JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1994年 / 63卷 / 02期

关键词：

ORGANIC CONDUCTOR; (BEDT-TTF)-SALT; OSCILLATORY MAGNETORESISTANCE; FERMI SURFACE; ANGULAR DEPENDENCE;

D O I：

10.1143/JPSJ.63.674

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Angular dependent magnetoresistance oscillation (ADMRO) effect in alpha-(BEDT-TTF)2MHg(SCN)4 [M: K, NH4] has been studied as a function of the polar and azimuthal angles of applied magnetic field with respect to the most conducting ac-plane. The ADMRO effects in these two structurally similar compounds are drastically different in their azimuthal angle dependence and oscillation waveform. While the ADMRO in NH4Hg-salt is of the standard type arising from a warped cylindrical Fermi surface, that in KHg-salt is a novel type to be attributed to an open Fermi sheet. Calculation based on a model recently proposed for a quasi one-dimensional system quantitatively reproduces the essential features of the anomalous ADMRO in KHg-salt.

引用

页码：674 / 684

页数：11

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