DOPING EFFECT OF SN ON SUPERCONDUCTIVITY OF YBA2CU3OY

被引：3

作者：

ANG, C

YU, Z

LI, BR

WANG, SJ

CHEN, YL

机构：

[1] HUAZHONG UNIV SCI & TECHNOL,DEPT SOLID STATE ELECTR,WUHAN 430074,PEOPLES R CHINA

[2] WUHAN UNIV,DEPT PHYS,WUHAN 430071,PEOPLES R CHINA

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1992年 / 4卷 / 21期

关键词：

D O I：

10.1088/0953-8984/4/21/013

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The superconductivity of YBa2Cu3Oy ceramics doped with SnO2 was studied. The superconducting transition temperature T(c) was increased slightly as the SnO2 content changed from 0 to 5 wt%. The results of the Mossbauer effect and the positron annihilation spectra showed that the Sn ions did substitute for Cu(1) sites. The increase in T(c) may be attributed to the optimal carrier concentration as well as to the fine and dense microstructure obtained by doping with SnO2.

引用

页码：4981 / 4987

页数：7

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