High-field Shubnikov-deHaas effect in the organic superconductor alpha-(BEDT-TTF)(2)NH4Hg(SCN)(4)

被引：21

作者：

Sandhu, PS

Athas, GJ

Brooks, JS

Haanappel, EG

Goettee, JD

Rickel, DW

Tokumoto, M

Kinoshita, N

Kinoshita, T

Tanaka, Y

机构：

[1] LOS ALAMOS NATL LAB, LOS ALAMOS, NM USA

[2] ELECTROTECH LAB, TSUKUBA, IBARAKI 305, JAPAN

来源：

SURFACE SCIENCE | 1996年 / 361卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0039-6028(96)00563-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report Shubnikov-de Haas (SdH) measurements on the quasi-two dimensional organic superconductor alpha-(BEDT-TTF)(2)NH4Hg(SCN)(4) in pulsed fields up to 50 T. Analysis of the field and temperature-dependence of the oscillations reveals several unusual features, such as a held-dependent effective mass parameter, non-linear Dingle plots and an anomalously large harmonic ratio. These results suggest departures from the Lifshitz-Kosevich formalism, arising from the highly two-dimensional nature of the material.

引用

页码：913 / 917

页数：5

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