Structural and magnetic properties of iron particles in a copper matrix

被引：1
|
作者：
Batlle, X [1 ]
Echer, C
Krishnan, KM
Hattink, BJ
Labarta, A
机构：
[1] Lawrence Berkeley Lab, NCEM, Berkeley, CA 94720 USA
[2] Univ Barcelona, Fac Fis, Dept Fis Fonamental, Barcelona 08028, Catalonia, Spain
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1999年 / 203卷
关键词：
phase segregation; antiferromagnetic correlations; spin glass-like behavior;
D O I：
10.1016/S0304-8853(99)00208-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The structural and magnetic properties of Fe particles grown in a Cu matrix by annealing a precursor alloy of composition Cu97Fe3 are discussed. Structural characterization suggests that all segregated Fe particles are BCC-type. However, AC susceptibility and hysteresis loops display short-range antiferromagnetic correlations and a spin glass-like behavior. The former is analyzed in terms of the effects occurring at the particle surface, while the latter is associated with the Fe spins diluted in the Cu matrix. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：120 / 122
页数：3
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