Comment on 'Particle size dependent exchange bias and cluster-glass states in LaMn0.7Fe0.3O3'

被引：33

作者：

Geshev, J. ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2009年 / 21卷 / 07期

关键词：

ANISOTROPY; NANOPARTICLES;

D O I：

10.1088/0953-8984/21/7/078001

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Thakur et al (2008 J. Phys.: Condens. Matter 20 195215) have recently reported magnetization hysteresis loops shifted along the field axis of the cluster-glass compound LaMn0.7Fe0.3O3, attributed there to exchange bias induced at ferromagnetic/spin-glass-like interfaces. The present comment affirms that their results are insufficient for assigning the phenomenon solely to exchange bias since the corresponding field shift, if any, cannot be separated from that of a minor hysteresis loop of a ferromagnet, naturally displaced from the origin.

引用

页数：2

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