Anisotropic magnetoresistance in La0.67Ca0.33MnO3/YBa2Cu4O8/La0.67Ca0.33MnO3 trilayer films

被引：6

作者：

Zhao, K

Zhang, L

Wong, HK

机构：

[1] Liaocheng Univ, Magnetoelect Lab, Sch Phys Sci & Informat Technol, Liaocheng City 252059, Shandong Prov, Peoples R China

[2] Chinese Univ Hong Kong, Dept Phys, Shatin 00852, Hong Kong, Peoples R China

来源：

THIN SOLID FILMS | 2005年 / 471卷 / 1-2期

关键词：

colossal magnetoresistance; high-T-c films; anisotropy; magnetic properties;

D O I：

10.1016/j.tsf.2004.05.105

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic anisotropy of La0.67Ca0.33MnO3/YBa2Cu4O8/La0.67Ca0.33MnO3 (LCMO/YBCO/LCMO) sandwiches on (001) SrTiO3 have been investigated. Single layer LCMO and sandwiches show in-plane anisotropy. Thick spacer layer can decouple the adjacent LCMO layers and weaken the easy-plane anisotropy. Magnetoresistance (MR) and magnetization strongly depends on the magnetic field direction. A nearly sinusoidal dependence on the angle between the applied magnetic field and the transport current or film plane is observed. A positive MR is present with lower fields applied not only in-plane but also out-of-plane in sandwich films. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：287 / 292

页数：6

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