Transition to superparamagnetism in a Cr-containing FINEMET-type alloy

被引：5
|
作者：
Franco, V [1 ]
Conde, CF
Conde, A
Kiss, LF
Kemény, T
机构：
[1] Univ Sevilla, Dept Condensed Matter Phys, E-41080 Seville, Spain
[2] Univ Sevilla, ICMSE, CSIC, E-41080 Seville, Spain
[3] Hungarian Acad Sci, Solid State Phys Res Inst, H-1525 Budapest, Hungary
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2002年 / 38卷 / 05期
基金：
匈牙利科学研究基金会;
关键词：
hysteresis; magnetic materials; magnetization processes;
D O I：
10.1109/TMAG.2002.802115
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The transition from a ferromagnetic to a superparamagnetic regime has been studied in a Cr-containing FINEMET-type alloy. Cr enhances the thermal stability of the alloy against nanocrystallization and reduces the Curie temperature of the remaining amorphous phase. Above room temperature, the temperature dependent hysteresis loop of a nanocrystalline sample can be described by a model of interacting superparamagnetic particles. The temperature dependence of the apparent magnetic moment of the particles obtained from the fittings is interpreted in an extended version of the model.
引用
收藏
页码：3069 / 3074
页数：6
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