DEPENDENCE OF THE CYCLOTRON EFFECTIVE-MASS IN THE ORGANIC SUPERCONDUCTOR KAPPA-(BEDT-TTF)(2)I-3

被引：10

作者：

BALTHES, E

SCHWEITZER, D

HEINEN, I

KELLER, HJ

BIBERACHER, W

JANSEN, AGM

STEEP, E

机构：

[1] UNIV HEIDELBERG,INST ANORGAN CHEM,D-69120 HEIDELBERG,GERMANY

[2] WALTHER MEISSNER INST TIEFTEMP FORSCH,D-85748 GARCHING,GERMANY

[3] MAX PLANCK INST FESTKORPERFORSCH,HIGH FIELD MAGNET LAB,F-38042 GRENOBLE 9,FRANCE

来源：

SYNTHETIC METALS | 1995年 / 70卷 / 1-3期

关键词：

D O I：

10.1016/0379-6779(94)02673-M

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

kappa-(BEDT-TTF)(2)I-3 is an electronically extreme two-dimensional (2d) organic metal with a superconducting transition at around 4K. In magnetic fields above 12T the effective mass, as obtained from the temperature dependence of the amplitudes of Shubnikov-de Haas (SdH) oscillations, is magnetic field dependent as long as the magnetic field is arranged perpendicular to the conducting planes. In contrast to this by turning the magnetic field 27 degrees or even only by 9 degrees the observed effective mass (as obtained from SdH- and de Haas-van Alphen (dHvA)-measurements) is field independent. We suppose that the occurrence of anyons at temperatures below IK and in fields above 12T is the reason for the observed field dependence of the effective mass.

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页码：841 / 842

页数：2

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