Combined effect of a single grain boundary and artificial pinning centers on the critical current density in a YBa2Cu3O7-δ thin film

被引：10

作者：

Horide, T. ^{[1
]}

Matsumoto, K.

Yoshida, Y.

Mukaida, M.

Ichinose, A.

Horii, S.

机构：

[1] Kyoto Univ, Dept Mat Sci & Engn, Sakyo Ku, Kyoto 6068501, Japan

[2] Nagoya Univ, Dept Energy Engn & Sci, Nagoya, Aichi 4648603, Japan

[3] Kyushu Univ, Dept Mat Sci & Engn, Fukuoka 8190395, Japan

[4] Cent Res Inst Elect Power Ind, Elect Power Engn Res Lab, Yokosuka, Kanagawa 2400196, Japan

[5] Univ Tokyo, Dept Appl Chem, Tokyo 1138656, Japan

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 17期

基金：

日本科学技术振兴机构;

关键词：

D O I：

10.1063/1.2364186

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The combined effect of a single grain boundary and artificial pinning centers (APCs) on the critical current density (J(c)) in YBa2Cu3O7-delta thin films was investigated. The authors decorated the surface of a 5 degrees-tilt bicrystal SrTiO3 substrate with Y2O3 nanoislands to introduce APCs into the film. J(c) of the bicrystal YBa2Cu3O7-delta film with APCs was measured in various magnetic fields. The APCs improved J(c) in high magnetic fields, but not in low magnetic fields due to the existence of the grain boundary. The limiting mechanism of J(c) in the bicrystal film containing APCs is discussed based on the experimental results. (c) 2006 American Institute of Physics.

引用

页数：3

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