EffectsofYb-dopingonfluxpinningpropertiesinYBa2Cu3O7-δ

被引：6

作者：

徐胜 ^{[1
]}

顾艳妮 ^{[1
]}

吴小山 ^{[2
]}

机构：

[1] Jiangsu University of Science and Technology

[2] Department of Physics,Nanjing University

来源：

JournalofRareEarths | 2010年 / 28(S1)卷 / S1期

关键词：

YBa2Cu3O7-δ; Yb-doping; critical current density; rare earths;

D O I：

暂无

中图分类号：

O731 [晶体的物理性质];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The effects of Yb-doping on the critical current density(Jc) and the critical temperature(Tc) in YBa2Cu3O7-δ(YBCO) were investigated.Rietveld refinements of X-ray diffraction showed that Yb3+ ions had partly substituted Y sites in YBCO and the unit cell volume V decreased monotonically as x increasing.Although Tc almost had no change with increasing Yb-concentration,the increase of Jc occurred as a field was applied and displayed a maximum at x=0.08.We argued that the formation of nanometric inhomogeneity may lead to the enhancement of pinning force.

引用

页码：431 / 433

页数：3