MAGNETIC-RELAXATION STUDY IN MELT-TEXTURED ERBA2CU3O7-DELTA CERAMIC MATERIAL

被引：0

作者：

LAN, MD ^{[1
]}

PENG, SJ ^{[1
]}

LIU, JZ ^{[1
]}

SHELTON, RN ^{[1
]}

机构：

[1] UNIV CALIF DAVIS,DEPT PHYS,DAVIS,CA 95616

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 1994年 / 59卷 / 02期

关键词：

D O I：

10.1007/BF00332211

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have studied the zero-field-cooled magnetic relaxation in the melt-textured ErBa2Cu3O7-delta ceramic material. The magnetic relaxation rate dM/d (ln t) exhibits strong temperature and field dependence in the temperature range up to 80 K and the field range up to 5.5 T. The magnetic relaxation behavior observed in the melt-textured ErBa2Cu3O7-delta ceramic sample is similar to that in single crystals. The magnetization to noise ratio is much improved, in particular, for temperatures approaching the superconducting transition temperature and for low magnetic fields. Several theoretical models were explored to fit the experimental data.

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页码：169 / 172

页数：4

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