Role of intermediate layer for La2/3Sr1/3MnO3/SiO2/Si(100) granular thin films

被引:11
作者
Shim, IB [1 ]
Kim, CS
Park, KT
Oh, YJ
机构
[1] Kookmin Univ, Dept Phys, Seoul 136702, South Korea
[2] Korea Inst Sci & Technol, Thin Films Technol Res Ctr, Seoul 136791, South Korea
基金
新加坡国家研究基金会;
关键词
low-field tunnel-type MR; sol-gel deposition; buffer layer; dead layer;
D O I
10.1016/S0304-8853(00)01401-3
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Magnetotransport properties of La2/3Sr1/3MnO3 (LSMO) (1500 Angstrom)/YSZ (100-1500 Angstrom)/SiO2/Si (100) bilayers were investigated by low-field magnetotransport measurement at room temperature. It is observed that MR ratio of the films with a YSZ buffer layer (MR = 0.43 %) was much higher than those of the films without a buffer layer (MR = 0.21 %) The better results of the LSMO films with a YSZ diffusion barrier are deduced to be related to the improvement of microstructure of the films and the reduction of the interface reaction between the films and SiO2/Si (100) substrates. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:1672 / 1674
页数:3
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