ANGULAR-DEPENDENCE OF THE CYCLOTRON EFFECTIVE MASS IN ORGANIC SUPERCONDUCTORS

被引：51

作者：

WOSNITZA, J ^{[1
]}

CRABTREE, GW ^{[1
]}

WANG, HH ^{[1
]}

CARLSON, KD ^{[1
]}

VASHON, MD ^{[1
]}

WILLIAMS, JM ^{[1
]}

机构：

[1] ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.67.263

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report measurements of the de Haas-van Alphen (dHvA) effect in the organic superconductors alpha-(BEDT-TTF)2(NH4)Hg(SCN)4 (T(c) almost-equal-to 1 K) and kappa-(BEDT-TTF)2Cu(NCS)2 (T(c) almost-equal-to 10 K) in fields up to 15 T and temperatures down to 0.45 K. For the first time, we determine the angular dependence of the cyclotron effective mass m(c), and the orientation of up to four spin-splitting zeros of the dHvA signal. The angular dependence of the amplitude of the dHvA oscillations is quantitatively explained, and the mass enhancement due to electron-phonon coupling is estimated.

引用

页码：263 / 266

页数：4

共 26 条

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