OBSERVATION OF PERSISTENT CURRENTS IN A HIGH-TEMPERATURE SUPERCONDUCTOR

被引：4

作者：

SKOLNICK, MS ^{[1
]}

SAKER, MK ^{[1
]}

ROBERTSON, DS ^{[1
]}

SATCHELL, JS ^{[1
]}

REED, LJ ^{[1
]}

SINGLETON, J ^{[1
]}

BAGGULEY, DMS ^{[1
]}

机构：

[1] UNIV OXFORD,CLARENDON LAB,OXFORD,ENGLAND

来源：

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS | 1987年 / 20卷 / 20期

关键词：

CERAMIC MATERIALS - MAGNETIC PROPERTIES - YTTRIUM COMPOUNDS - Electric Conductivity;

D O I：

10.1088/0022-3719/20/20/002

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Persistent current flow in (Y//0//. //6Ba//0//. //4)//2CuO//4 ceramic is reported. An upper limit for the resistivity of 4. 2 multiplied by 10** minus **1**6 OMEGA cm is deduced, thus demonstrating superconductivity in this material in a very direct fashion. The yttrium barium cuprate was prepared by mixing the required amounts of the appropriate oxides with barium carbonate. The purity of the materials used was four nines quality.

引用

页码：L435 / L439

页数：5

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