Cellular effective-medium approximation for the giant magnetoresistance in magnetic granular films

被引：2
|
作者：
Zhang, W
Yang, R
机构：
[1] Inst Appl Phys & Computat Math, Lab Computat Phys, Beijing 100088, Peoples R China
[2] Suzhou Univ, Dept Phys, Suzhou 215006, Peoples R China
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 1999年 / 11卷 / 22期
关键词：
D O I：
10.1088/0953-8984/11/22/306
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
To derive the conductivity and magnetoresistance of inhomogeneous magnetic granular films, a cellular effective-medium approximation is developed to include spin-dependent interfacial scattering and bulk scattering. It is shown that the giant magnetoresistance as well as the conductivities of these systems depend strongly on the volume fraction and the size of the magnetic granules.
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页码：4341 / 4347
页数：7
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