DIRECT OBSERVATION OF INTRINSIC PINNING BY LAYERED STRUCTURE IN SINGLE-CRYSTAL YBA2CU3O7-DELTA

被引：148

作者：

KWOK, WK

WELP, U

VINOKUR, VM

FLESHLER, S

DOWNEY, J

CRABTREE, GW

机构：

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

[2] PURDUE UNIV,DEPT PHYS,W LAFAYETTE,IN 47907

[3] CHERNOGOLOVKA SOLID STATES PHYS INST,CHERNOGOLOVKA,USSR

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.67.390

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The intrinsic pinning in twinned and untwinned single-crystal YBa2Cu3O7-delta is observed using a novel crossed-magnetic-field technique for obtaining angular resolutions of DELTA-theta < 0.005-degrees. The pinning occurs for magnetic-field directions within a critical angle-theta* < 1-degrees of the Cu-O planes. The data are discussed in the context of a lock-in transition of vortices in the a-b plane of the crystal.

引用

页码：390 / 393

页数：4

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