Tunnel-type GMR in Co-Al-O insulated granular system - Its oxygen-concentration dependence

被引：66
|
作者：
Fujimori, H [1 ]
Mitani, S [1 ]
Ohnuma, S [1 ]
机构：
[1] RES INST ELECT & MAGNET MAT,SENDAI,MIYAGI 982,JAPAN
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1996年 / 156卷 / 1-3期
关键词：
D O I：
10.1016/0304-8853(95)00880-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Co-Al-O thin films, with network-like nano granular structure consisting of Co based magnetic and metallic grains and Al2O3 based nonmetallic intergrains, were fabricated by Ar + O-2 reactive sputtering. Giant magnetoresistances (GMR) were observed. From the experiments on oxygen concentration dependence of GMR, electrical resistivity and microstructure, it was confirmed that spin dependent tunneling was responsible for the GMRs.
引用
收藏
页码：311 / 314
页数：4
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