Magnetic interactions of iron nanoparticles in arrays and dilute dispersions

被引：82

作者：

Farrell, D

Cheng, Y

McCallum, RW

Sachan, M

Majetich, SA ^{[1
]}

机构：

[1] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA

[2] UCL, Ctr Nanotechnol, London WC1E 7HN, England

[3] Iowa State Univ, Ames Lab, Ames, IA 50011 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2005年 / 109卷 / 28期

关键词：

D O I：

10.1021/jp050161v

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 magnetic properties of monodisperse Fe nanoparticles with over 4 orders of magnitude difference in concentration are studied by a combination of ordinary and remanent hysteresis loops, zero field cooled magnetization as a function of temperature, and magnetic relaxation rates. We compare the behavior of dilute dispersions with different concentrations, dispersions, and arrays made from the same particles, and nanoparticle arrays with different particle sizes and separations. The results are related to theoretical predictions and are used to create a unified picture of magnetostatic interactions within the assemblies.

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收藏

页码：13409 / 13419

页数：11

相关论文

共 39 条

[1] ENERGY, ORIENTATION, AND TEMPERATURE DEPENDENCE OF DEFECT FORMATION IN ELECTRON IRRADIATION OF N-TYPE GERMANIUM [J].

BROWN, WL ;

AUGUSTYNIAK, WM .

JOURNAL OF APPLIED PHYSICS, 1959, 30 (08) :1300-1309

[2] Percolation, relaxation halt, and retarded van der Waals interaction in dilute systems of iron nanoparticles [J].

Chamberlin, RV ;

Hemberger, J ;

Loidl, A ;

Humfeld, KD ;

Farrell, D ;

Yamamuro, S ;

Ijiri, Y ;

Majetich, SA .

PHYSICAL REVIEW B, 2002, 66 (17) :1-4

[3] Magnetic relaxation of iron nanoparticles [J].

Chamberlin, RV ;

Humfeld, KD ;

Farrell, D ;

Yamamuro, S ;

Ijiri, Y ;

Majetich, SA .

JOURNAL OF APPLIED PHYSICS, 2002, 91 (10) :6961-6963

[4] THE TIME-DEPENDENT MAGNETIC-BEHAVIOR OF FINE PARTICLE-SYSTEMS [J].

CHANTRELL, RW ;

FEARON, M ;

WOHLFARTH, EP .

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1986, 97 (01) :213-221

[5]

Chikazumi S, 1964, PHYS MAGNETISM, P100

[6] Dynamics of an interacting particle system: Evidence of critical slowing down [J].

Djurberg, C ;

Svedlindh, P ;

Nordblad, P ;

Hansen, MF ;

Bodker, F ;

Morup, S .

PHYSICAL REVIEW LETTERS, 1997, 79 (25) :5154-5157

[7] A DYNAMIC STUDY OF SMALL INTERACTING PARTICLES - SUPERPARAMAGNETIC MODEL AND SPIN-GLASS LAWS [J].

DORMANN, JL ;

BESSAIS, L ;

FIORANI, D .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1988, 21 (10) :2015-2034

[8] Superlattices of iron nanocubes synthesized from Fe[N(SiMe3)2]2 [J].

Dumestre, F ;

Chaudret, B ;

Amiens, C ;

Renaud, P ;

Fejes, P .

SCIENCE, 2004, 303 (5659) :821-823

[9]

Farrell D, 2004, J MAGN MAGN MATER, V282, P1, DOI [10.1016/j.jmmm.2004.04.025, 10.1016/j.jmmm.2004.04.02]

[10] Structural ordering effects in Fe nanoparticle two- and three-dimensional arrays [J].

Farrell, D ;

Ding, Y ;

Majetich, SA ;

Sanchez-Hanke, C ;

Kao, CC .

JOURNAL OF APPLIED PHYSICS, 2004, 95 (11) :6636-6638

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