A SCALING PROPERTY IN THE REVERSIBLE MAGNETIZATION OF ANISOTROPIC HIGH-KAPPA TYPE-II SUPERCONDUCTORS

被引：9

作者：

HAO, ZD ^{[1
]}

CLEM, JR ^{[1
]}

CHO, JH ^{[1
]}

JOHNSTON, DC ^{[1
]}

机构：

[1] IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS,AMES,IA 50011

来源：

PHYSICA C | 1991年 / 185卷

关键词：

D O I：

10.1016/0921-4534(91)91061-8

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We find that the reversible magnetization M of an anisotropic high-kappa type-II superconductor can be written to good approximation as -4-pi-M = (H(c)2/H(c2)) PHI (h) for the applied field H >> H(c1), where h = H/H(c2) is the reduced field and PHI is a function of h. For the high-temperature superconductors, this property gives the relation M parallel-to c(H) = gamma-M parallel-to ab(gamma-H), where M parallel-to i is the magnetization for H parallel to the i direction and gamma = H(c2 parallel-to ab)/H(c2 parallel-to c) is the anisotropy ratio. It provides a simple way to estimate gamma from the reversible magnetization measurement, and we find gamma congruent-to 18 as a lower bound for a Bi2Sr2CaCu2O8 single crystal.

引用

页码：1871 / 1872

页数：2