期刊
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
卷 463, 期 -, 页码 678-681出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physc.2007.01.047
关键词
YBCO thin film; vortex pinning; low angle grain boundary
The angular dependencies of critical current density (J(bc)) in a YBa2Cu3O7-x film on a bicrystal SrTiO3 substrate were measured. At low magnetic field, J(bc) was limited by the low angle grain boundary (LAGB), regardless of the angle, theta between the c-axis and magnetic field. However, the limitation mechanism of J(bc)-theta curves changed at kink positions in high magnetic field. The vortex pinning in the grains determined J(bc) for low theta, but J(bc) at high theta was still limited by the LAGB. The crossover of J(bc) limitation mechanism is discussed to understand the angular dependence of critical current in coated conductors. (C) 2007 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据