MAGNETIC-PROPERTIES OF A FROZEN FERROFLUID - LOCAL-MEAN-FIELD THEORY

被引：9

作者：

MERTENS, B ^{[1
]}

LEVIN, K ^{[1
]}

GREST, GS ^{[1
]}

机构：

[1] EXXON RES & ENGN CO,CORP RES SCI LAB,ANNANDALE,NJ 08801

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.49.15374

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Recent experiments on the magnetic properties of frozen ferrofluids indicate clear deviations from canonical spin glass behavior. To elucidate these differences we present simulations based on a local-mean-field theory approach. This theoretical scheme was previously found to be quite successful for traditional spin glass and random field systems. In a parallel fashion we study frustration effects associated with a magnetic dipole-dipole interaction for a random spatial arrangement of Heisenberg spins in a quenched ferrofluid. Some of the experimental features can be reproduced if the spins are assumed to be inhomogeneously distributed in space.

引用

页码：15374 / 15376

页数：3

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