MYSTERIOUS GROUND-STATES IN THE ORGANIC CONDUCTOR ALPHA-(BEDT-TTF)(2)KHG(SCN)(4) - MIXED SDW AND CDW

被引：14

作者：

SASAKI, T ^{[1
]}

TOYOTA, N ^{[1
]}

机构：

[1] TOHOKU UNIV,INST MAT RES,AOBA KU,SENDAI,MIYAGI 980,JAPAN

来源：

SYNTHETIC METALS | 1995年 / 70卷 / 1-3期

关键词：

D O I：

10.1016/0379-6779(94)02677-Q

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present magnetoresistance measurements in static fields up to 30T on the organic conductor alpha-(BEDT-TTF)(2)KHg(SCN)(4). The current and field direction dependence of the magnetoresistance with respect to the crystallographic axis are described, suggesting a topological change of the Fermi surface. The change results from the phase transition from the normal metal to the mysterious ground state. We discuss a possible ground state of mixed charge-density and spin-density waves from the viewpoint of the orbital and Pauli couplings of the external field to the band electrons.

引用

收藏

页码：849 / 852

页数：4

相关论文

共 22 条

[1] NOVEL INTERPLAY OF FERMI-SURFACE BEHAVIOR AND MAGNETISM IN A LOW-DIMENSIONAL ORGANIC CONDUCTOR [J].

BROOKS, JS ;

AGOSTA, CC ;

KLEPPER, SJ ;

TOKUMOTO, M ;

KINOSHITA, N ;

ANZAI, H ;

UJI, S ;

AOKI, H ;

PEREL, AS ;

ATHAS, GJ ;

HOWE, DA .

PHYSICAL REVIEW LETTERS, 1992, 69 (01) :156-159

[2] LARGE MAGNETIC-FIELD-INDUCED FERMI-SURFACE CHANGES IN ALPHA-ET(2)KHG(NCS)(4) [J].

CAULFIELD, J ;

SINGLETON, J ;

HENDRIKS, PTJ ;

PERENBOOM, JAAJ ;

PRATT, FL ;

DOPORTO, M ;

HAYES, W ;

KURMOO, M ;

DAY, P .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1994, 6 (13) :L155-L162

[3]

Ishiguro T., 1990, ORGANIC SUPERCONDUCT

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

IYE, Y ;

YAGI, R ;

HANASAKI, N ;

KAGOSHIMA, S ;

MORI, H ;

FUJIMOTO, H ;

SAITO, G .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1994, 63 (02) :674-684

[5]

KARTSOVNIK MV, IN PRESS PHYSICA B

[6]

KARTSOVNIK MV, 1991, J PHYS I, V2, P89

[7] CRYSTAL AND ELECTRONIC-STRUCTURES OF (BEDT-TTF)2(KHG(SCN)4), (BEDT-TTF)2(NH4HG(SCN)4) [J].

MORI, H ;

TANAKA, S ;

OSHIMA, M ;

SAITO, G ;

MORI, T ;

MARUYAMA, Y ;

INOKUCHI, H .

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1990, 63 (08) :2183-2190

[8] HIGH-FIELD MAGNETOTRANSPORT AND FERMI-SURFACE TOPOLOGY IN THE NOVEL QUASI-2-DIMENSIONAL ORGANIC CONDUCTOR BIS(ETHYLENEDITHIOLO)TETRATHIAFULVALENIUM MERCURIC POTASSIUM THIOCYANATE, (BEDT-TTF)2KHG(SCN)4 [J].

OSADA, T ;

YAGI, R ;

KAWASUMI, A ;

KAGOSHIMA, S ;

MIURA, N ;

OSHIMA, M ;

SAITO, G .

PHYSICAL REVIEW B, 1990, 41 (08) :5428-5431

[9] COMMENSURABILITY EFFECT OF MAGNETORESISTANCE ANISOTROPY IN THE QUASI-ONE-DIMENSIONAL CONDUCTOR TETRAMETHYLTETRASELENAFULVALENIUM PERCHLORATE, (TMTSF)2CLO4 [J].

OSADA, T ;

KAWASUMI, A ;

KAGOSHIMA, S ;

MIURA, N ;

SAITO, G .

PHYSICAL REVIEW LETTERS, 1991, 66 (11) :1525-1528

[10] RESONANCE EFFECT IN MAGNETOTRANSPORT ANISOTROPY OF QUASI-ONE-DIMENSIONAL CONDUCTORS [J].

OSADA, T ;

KAGOSHIMA, S ;

MIURA, N .

PHYSICAL REVIEW B, 1992, 46 (03) :1812-1815