MICROSTRUCTURE INFLUENCE ON THE FIELD-DEPENDENCE OF THE PINNING FORCE VOLUME DENSITY OF YBCO SINGLE-CRYSTALS

被引：4

作者：

HERGT, R ^{[1
]}

HIERGEIST, R ^{[1
]}

KOHLER, A ^{[1
]}

ZEISBERGER, M ^{[1
]}

ERB, A ^{[1
]}

机构：

[1] UNIV KARLSRUHE,FAK PHYS,D-76131 KARLSRUHE,GERMANY

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1994年 / 235卷

关键词：

D O I：

10.1016/0921-4534(94)92596-8

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

YBCO single crystals with high critical current densities are studied by means of torque magnetometry. Magnetization curves show the typical fishtail shape for all crystals which differ with respect to the twin structure as well as oxygen stoichiometry. The field dependence is discussed in the frame of the collective pinning theory according to an analysis given by Hiergeist et al. [this conference]. Pinning contributions due to random pinning centers as well as due to correlated disorder (e.g. twin boundaries) are discussed.

引用

页码：2751 / 2752

页数：2

共 6 条

[1]

CLAUS H, 1992, PHYSICA C, V194, P42

[2] FISHTAILS, SCALES AND MAGNETIC-FIELDS [J].