Flux pinning enhancement in ferromagnetic and superconducting thin-film multilayers

被引：72

作者：

Jan, DB

Coulter, JY

Hawley, ME

Bulaevskii, LN

Maley, MP

Jia, QX

Maranville, BB

Hellman, F

Pan, XQ

机构：

[1] Los Alamos Natl Lab, Superconduct Technol Ctr, Los Alamos, NM 87545 USA

[2] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

[3] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA

来源：

APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 05期

关键词：

D O I：

10.1063/1.1542674

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Flux pinning in high-temperature superconductors such as YBa2Cu3O7-x (YBCO) in the past has been accomplished by pinning the vortex cores. We demonstrate magnetic-domain-induced flux pinning of the magnetic flux of vortices in a ferromagnet-superconductor bilayer consisting of CoPt grown on YBCO, where the ferromagnet has uniaxial perpendicular magnetic anisotropy and a random domain structure. We observe an improvement of the critical current due to magnetic pinning at temperatures close to the transition temperature. (C) 2003 American Institute of Physics.

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页码：778 / 780

页数：3

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