FULL-PENETRATION TEMPERATURE AND MAGNETIC-RELAXATION IN A SINGLE-CRYSTAL OF BI2SR2CACU2OX

被引：26

作者：

XU, M

SHI, DL

UMEZAWA, A

VANDERVOORT, KG

CRABTREE, GW

机构：

[1] ARGONNE NATL LAB,DIV MAT SCI,ARGONNE,IL 60439

[2] ARGONNE NATL LAB,SCI & TECHNOL CTR SUPERCONDUCT,ARGONNE,IL 60439

[3] UNIV ILLINOIS,DEPT PHYS,CHICAGO,IL 60680

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.43.13049

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have developed the concept of a characteristic temperature T* at which the flux first fully penetrates the sample. Based on this concept, we have interpreted the effects of the temperature on the magnetic relaxation that have been measured in a single crystal of Bi2Sr2CaCu2Ox in a broad range of temperature (5-35 K) and applied magnetic field (0.1-4 kG). The magnetic relaxation exhibits a clear peak in the dM/d lnt-versus-temperature plot, and the peak position is highly affected by the applied field. We have also interpreted the peak shift of dM/d lnt with different fields in terms of the flux-creep and the critical-state models.

引用

页码：13049 / 13052

页数：4

共 18 条

[1] THEORY OF FLUX CREEP IN HARD SUPERCONDUCTORS [J].