THE EFFECT OF INTERACTIONS ON GMR IN GRANULAR SOLIDS

被引：45

作者：

ELHILO, M ^{[1
]}

OGRADY, K ^{[1
]}

CHANTRELL, RW ^{[1
]}

机构：

[1] UNIV KEELE,DEPT PHYS,KEELE ST5 5BG,STAFFS,ENGLAND

来源：

JOURNAL OF APPLIED PHYSICS | 1994年 / 76卷 / 10期

关键词：

D O I：

10.1063/1.358137

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this article the effects of dipolar and exchange interactions on the magnetoresistance curves in granular solids has been calculated using a generalized 3-d Monte Carlo model. This model allows the final configuration of magnetic moments to be calculated as a function of concentration, temperature, and magnetic field. The results show that interaction effects give rise to a finite resistivity in small magnetic fields. The magnitude of this finite magnetoresistance is found to increase with increasing concentration. Thus the maximum change in MR with field is found to be lowered by the interaction effects.

引用

页码：6811 / 6813

页数：3

共 8 条

[1] GIANT MAGNETORESISTANCE IN HETEROGENEOUS CU-CO AND AG-CO ALLOY-FILMS [J].