IS (LA,SR)2CUO4 SOLID-SOLUTION A HOMOGENEOUS SUPERCONDUCTOR

被引：13

作者：

KITAZAWA, K

NAGANO, T

NAKAYAMA, Y

TOMIOKA, Y

KISHIO, K

机构：

[1] Department of Industrial Chemistry, Department of Superconductivity, University of Tokyo, Bunkyo-ku, Tokyo, 113

来源：

APPLIED SUPERCONDUCTIVITY | 1993年 / 1卷 / 3-6期

关键词：

D O I：

10.1016/0964-1807(93)90269-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The superconducting volume fraction was estimated by comparative measurements of low field Meissner and shielding signals on both of pellet and granular samples of (La1-xSrx)2CuO4-delta prepared from the spray-dried powder. It has been revealed that bulk homogeneous superconductivity is present over a wide range of Sr composition, 0.0425 less-than-or-equal-to x less-than-or-equal-to 0.125, except a narrow anomaly region around x = 0.0625. The bulk superconducting region extends across the orthorhombic-to-tetragonal phase boundary at x = 0.105, indicating that the crystalline symmetry is not critical with the manifestation of the superconductivity.

引用

页码：567 / 579

页数：13

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