Relaxation in interacting nanoparticle systems

被引:25
作者
Jönsson, PE
García-Palacios, JL
Hansen, MF
Nordblad, P
机构
[1] Uppsala Univ, Dept Mat Sci, SE-75121 Uppsala, Sweden
[2] Univ Zaragoza, Fac Ciencias, CSIC, Inst Ciencia Mat Aragon, E-50009 Zaragoza, Spain
[3] Univ Zaragoza, Fac Ciencias, CSIC, Dept Fis Mat Condensada, E-50009 Zaragoza, Spain
[4] Tech Univ Denmark, MIc, DK-2800 Lyngby, Denmark
关键词
interparticle dipolar interaction; magnetic relaxation; nanoparticle systems;
D O I
10.1016/j.molliq.2004.02.010
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The effect of interparticle dipolar interaction on the magnetic relaxation of nanoparticle systems is discussed. While weak dipolar interaction can be described by a modified superparamagnetic behavior, experimental studies on strongly interacting nanoparticle systems give evidence for spin-glass-like dynamics in those systems. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:131 / 135
页数:5
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