COLUMNAR DEFECT PINNING IN UNTWINNED SINGLE-CRYSTAL YBA2CU3O7

被引:3
|
作者
CRABTREE, GW [1 ]
FENDRICH, J [1 ]
KWOK, WK [1 ]
GLAGOLA, BG [1 ]
机构
[1] ARGONNE NATL LAB,SCI & TECHNOL CTR SUPERCOND,DIV PHYS,ARGONNE,IL 60439
基金
美国国家科学基金会;
关键词
D O I
10.1016/0921-4534(94)92542-9
中图分类号
O59 [应用物理学];
学科分类号
摘要
The pinning by columnar defects produced by 1.0 GeV U ion bombardment along the c-axis of an untwinned YBa2Cu3O7 single crystal is characterized. The accommodation angle is nearly 90 degrees at low field, the resistivity anisotropy is reversed, and the onset of pinning occurs well into the fluctuation regime. The anisotropy and strength of the pinning are compared to that of twin boundaries.
引用
收藏
页码:2643 / 2644
页数:2
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