Correlated Pinning Behavior in ErBa2Cu3Oy Films with Columnar Defects

被引：0

作者：

Namba, Masafumi ^{[1
]}

Awaji, Satoshi ^{[1
]}

Watanabe, Kazuo ^{[1
]}

Kai, Hideki ^{[2
]}

Mukaida, Masashi ^{[2
]}

Okayasu, Satoru ^{[3
]}

机构：

[1] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan

[2] Kyushu Univ, Nishi Ku, Fukuoka 8190395, Japan

[3] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan

来源：

APPLIED PHYSICS EXPRESS | 2009年 / 2卷 / 11期

基金：

日本学术振兴会;

关键词：

COATED CONDUCTORS;

D O I：

10.1143/APEX.2.113002

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this study, c-axis-correlated pinning centers, which are known to increase the critical current density (J(c)) for B parallel to c-axis, were produced by heavy-ion-irradiation in REBa2Cu3Oy (RE: rare earth element, RE123) coated conductors, and the subsequent changes in J(c) were measured. A peak in the angular dependence of J(c) induced by the defects was observed for applied magnetic fields of up to 13 T for Er123 films with matching fields of B-phi = 0.1 and 1 T. We found that the columnar defects led to improvements in J(c) even under applied magnetic fields more than 130 times higher than B-phi. (C) 2009 The Japan Society of Applied Physics

引用

页数：3