THE PROPERTY IMPROVEMENT OF BULK HIGH-TEMPERATURE SUPERCONDUCTORS BY PLASMA TREATMENT

被引：2

作者：

ULYASHIN, AG ^{[1
]}

YANG, ZQ ^{[1
]}

SHLOPAK, NV ^{[1
]}

BUMAY, YA ^{[1
]}

ESEPKIN, VA ^{[1
]}

ALIFANOV, AV ^{[1
]}

STEPANENKO, AV ^{[1
]}

机构：

[1] PHYS TECH INST, MINSK 220730, BELARUS

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1994年 / 235卷

关键词：

D O I：

10.1016/0921-4534(94)91427-3

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An influence of atomic oxygen exposure on the superconductivity of YBa2Cu3O7-x, Bi2Sr2Ca2Cu3O10+y and Bi2Sr2Ca1Cu2O8+z ceramics has been examined by the critical current density J(c), critical temperature T-c and X-ray diffraction measurements. It is shown that exposure of high-T-c superconductors to a low power density oxygen plasma at 473 K and 673 K leads to an increase of both T-c and J(c). The improvement of superconductivity can be explained by the passivation of dangling bonds and defects on grain boundaries of these materials.

引用

页码：407 / 408

页数：2

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