Magnetotransport properties of La0.67Ca0.33MnO3/La0.67Sr0.33MnO3 bilayers

被引：0
|
作者：
Feng, JF [1 ]
Zhao, K
Huang, YH
Zhao, JG
Han, XF
Zhan, WS
Wong, HK
机构：
[1] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100080, Peoples R China
[2] Liaocheng Univ, Sch Phys Sci & Informat Technol, Spintron Lab, Liaocheng 252059, Peoples R China
[3] Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
[4] Chinese Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
来源：
CHINESE PHYSICS | 2005年 / 14卷 / 09期
关键词：
manganites; magnetic coupling; bilayer film;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The perovskite bilayers La0.67Ca0.33MnO3 (LCMO) (1.00 nm) / La0.67Sr0.33MnO3(LSMO) (100 nm) and LSMO (100 nm) / LCMO (100 nm) are fabricated by a facing-target sputtering technique. Their transport and magnetic properties are investigated. It is found that the transport properties between them are different obviously due to distinguishable structures, and the different lattice strains in both films result in the difference of metal-to-insulator transition. Only single-step magnetization loop appears in our bilayers from 5K to 320K, and the coercive force of LSMO/LCMO varies irregularly with a minimum similar to 2387A/m which is lower than that of LCMO and LSMO single layer films. The behaviour is explained by some magnetic coupling.
引用
收藏
页码：1879 / 1881
页数：3
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