THE MAGNETIC-PROPERTIES OF SINGLE-DOMAIN PARTICLES WITH CUBIC ANISOTROPY .1. HYSTERESIS LOOPS

被引：69

作者：

WALKER, M ^{[1
]}

MAYO, PI ^{[1
]}

OGRADY, K ^{[1
]}

CHARLES, SW ^{[1
]}

CHANTRELL, RW ^{[1
]}

机构：

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

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1993年 / 5卷 / 17期

关键词：

D O I：

10.1088/0953-8984/5/17/012

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A comprehensive study of the magnetic properties of non-interacting single-domain particles with cubic magnetocrystalline anisotropy is presented. These numerical calculations extend the zero-temperature predictions of Joffe and Heuberger and enable the effects of thermally activated magnetization reversal on the hysteresis loop at finite temperatures to be determined. Variations in particle size distribution are also considered. Calculations indicate a reduction in the intrinsic coercivity as the mean particle diameter is reduced arid an increase in coercivity for small particle diameter systems as the standard deviation of the size distribution is increased.

引用

页码：2779 / 2792

页数：14

共 12 条

[1]

Bean C.P., 1959, J APPL PHYS, V30, pS120, DOI DOI 10.1063/1.2185850

[2] THE ISOTHERMAL REMANENT MAGNETIZATION OF PARTICULATE MEDIA [J].