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

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2004年 / 114卷 / 1-3期

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

页码：131 / 135

页数：5

共 17 条

[1] EFFECT OF A MAGNETIC FIELD ON SUPERPARAMAGNETIC RELAXATION TIME
AHARONI, A
[J]. PHYSICAL REVIEW, 1969, 177 (02): : 793 - &
[2] Monte Carlo studies of the dynamics of an interacting monodispersive magnetic-particle system
Andersson, JO
Djurberg, C
Jonsson, T
Svedlindh, P
Nordblad, P
[J]. PHYSICAL REVIEW B, 1997, 56 (21): : 13983 - 13988
[3] Susceptibility of the disordered system of fine magnetic particles: a Langevin-dynamics study
Berkov, DV
Gorn, NL
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2001, 13 (41) : 9369 - 9381
[4] THERMAL FLUCTUATIONS OF A SINGLE-DOMAIN PARTICLE
BROWN, WF
[J]. PHYSICAL REVIEW, 1963, 130 (05): : 1677 - +
[5] A DYNAMIC STUDY OF SMALL INTERACTING PARTICLES - SUPERPARAMAGNETIC MODEL AND SPIN-GLASS LAWS
DORMANN, JL
BESSAIS, L
FIORANI, D
[J]. JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1988, 21 (10): : 2015 - 2034
[6] Thermally activated escape rates of uniaxial spin systems with transverse field: Uniaxial crossovers
Garanin, DA
Kennedy, EC
Crothers, DSF
Coffey, WT
[J]. PHYSICAL REVIEW E, 1999, 60 (06): : 6499 - 6502
[7] Critical dynamics of an interacting magnetic nanoparticle system
Hansen, MF
Jönsson, PE
Nordblad, P
Svedlindh, P
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2002, 14 (19) : 4901 - 4914
[8] Nonequilibrium dynamics in an interacting Fe-C nanoparticle system
Jönsson, P
Hansen, MF
Nordblad, P
[J]. PHYSICAL REVIEW B, 2000, 61 (02): : 1261 - 1266
[9] Jonsson P., 2001, PHYS REV B, V64
[10] Relaxation time of weakly interacting superparamagnets
Jönsson, PE
García-Palacios, JL
[J]. EUROPHYSICS LETTERS, 2001, 55 (03): : 418 - 424

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