TRANSPORT-PROPERTIES OF ORGANIC CONDUCTOR (BEDT-TTF)2KHG(SCN)4 .2. SHUBNIKOV-DE HAAS OSCILLATIONS AND SPIN-SPLITTING EFFECT

被引：63

作者：

SASAKI, T ^{[1
]}

TOYOTA, N ^{[1
]}

TOKUMOTO, M ^{[1
]}

KINOSHITA, N ^{[1
]}

ANZAI, H ^{[1
]}

机构：

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

来源：

SOLID STATE COMMUNICATIONS | 1990年 / 75卷 / 02期

关键词：

D O I：

10.1016/0038-1098(90)90349-G

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The magnetoresistance, the Shubnikov-de Haas (SdH) effect and their orientation dependence of an organic conductor (BEDT-TTF)2KHg(SCN)4 have been measured at temperatures down to 0.5 K and under magnetic fields up to 13 T. The SdH frequency F=670T, the cyclotron mass mc=1.4m0 and the Dingle temperature TD=1.6K are obtained when the fields are applied perpendicular to the conducting a-c plane. The dependence of F on the angle θ between the field and the b*-axis (⊥ a-c plane), which deviates slightly from cosθ, indicates the presence of the weakly warped cylindrical Fermi surface with an interlayer transfer integral estimated to be about 1 meV. Below 1 K and above 10 T, the spin-splitting effect is clearly observed and the direct analysis of the splitting oscillations results in the series of the g-factor; g=1.4n±0.6 (n is an odd number). The rigorous g-factor of 2.0 (n=1, + sign), being consistent with ESR measurements, is obtained. © 1990.

引用

页码：97 / 100

页数：4

共 18 条

[1] OBSERVATION OF GIANT MAGNETORESISTANCE OSCILLATIONS IN THE HIGH-TC PHASE OF THE TWO-DIMENSIONAL ORGANIC CONDUCTOR BETA-(BEDT-TTF)2I3 [J].