Anisotropy of superconductivity in an untwinned YBa2Cu3O7 single crystal

被引：22

作者：

Ishida, T

Inoue, K

Okuda, K

Asaoka, H

Kazumata, Y

Noda, K

Takei, II

机构：

[1] JAPAN ATOM ENERGY RES INST,TOKAI,IBARAKI 31911,JAPAN

[2] OSAKA UNIV,FAC SCI,TOYONAKA,OSAKA 560,JAPAN

来源：

PHYSICA C | 1996年 / 263卷 / 1-4期

关键词：

D O I：

10.1016/0921-4534(96)00024-X

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The torque curves of a detwinned YBa2Cu3O7 single crystal are reversible under mu(0)H = 0.8 T and T = 90 K for the three different rotation axes. The effective mass model of the torque gives the anisotropy parameters as gamma(ca) = root m(c)/m(a) = 7.55 +/- 0.63 and gamma(cb) = root m(c)/m(b) = 8.95 +/- 0.76. The a-b anisotropy parameter can be obtained as gamma(ab) = root m(a)/m(b) = gamma(cb)/gamma(ca) = 1.18 +/- 0.14. The torque curve in the a-b-plane contains four-fold symmetry.

引用

页码：260 / 263

页数：4

共 5 条

[1] GROWTH AND CHARACTERIZATION OF POLYHEDRAL YBA2CU3OX SINGLE-CRYSTALS [J].