Generality of spontaneous and stimulated magnetization reversal in MnSb clusters embedded in GaMnSb thin films

被引：5

作者：

Dmitriev, A. I. ^{[1
]}

Filatov, A. A. ^{[2
]}

机构：

[1] Russian Acad Sci, Inst Problems Chem Phys, Chernogolovka 142432, Moscow Oblast, Russia

[2] Moscow MV Lomonosov State Univ, Moscow 119991, Russia

来源：

PHYSICS OF THE SOLID STATE | 2017年 / 59卷 / 09期

关键词：

FINITE-SIZE; NANOPARTICLES;

D O I：

10.1134/S1063783417090050

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Generality of the spontaneous and stimulated magnetization reversal in MnSb clusters embedded in GaMnSb thin films is established. In experiments, the similarity of the thermoactivation and field magnetization reversal processes can be observed as the coincidence of the maximum in the field dependences of magnetic viscosity S(H) with the sample coercivity H (C) . Analysis of this experimental fact yields the relation between H (C) and parameters of the model describing the S(H) dependences. The obtained formula is identical to the well-known Kneller law determining the H (C) (T) dependence of noninteracting superparamagnetic nanoparticles.

引用

页码：1734 / 1738

页数：5

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