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
收藏
页码：287 / 292
页数：6
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