OBSERVATION OF RESISTIVITY ANISOTROPY ON ORIENTED YBA2CU3O7-DELTA FILMS

被引：9

作者：

HE, ZH

CHENG, XG

SHA, J

SU, ZP

ZHANG, QR

SHI, JZ

QI, Z

机构：

[1] ZHEJIANG UNIV,DEPT PHYS,HANGZHOU 310027,PEOPLES R CHINA

[2] ACAD SINICA,INST SOLID STATE PHYS,HEFEI 230031,PEOPLES R CHINA

来源：

SOLID STATE COMMUNICATIONS | 1990年 / 76卷 / 05期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/0038-1098(90)90113-P

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The difference between the longitudinal and transverse d.c. resistivity in oriented YBa2Cu3O7-δ films has been observed by special design of electrical contacts. It is attributed to the anisotropy of the in-plane resistivity, which at least indicates that some untwinned regions exist in the films. A sign change of the off-diagonal element of the resistivity tensor is also observed in the superconducting transition region for one of the films. Its possible origin is discussed. © 1990.

引用

页码：671 / 674

页数：4

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