Relationship between coercivity and magnetic moment of superparamagnetic particles with dipolar interaction

V. Franco, C. F. Conde, A. Conde, L. Kiss

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

The temperature dependence of the hysteresis loops of Nanoperm-type alloys has been studied. In the high-temperature region above the coercivity maximum, the response of the system can be modeled as that of dipolar-interaction superparamagnetic particles, considering a mean interaction field. Special attention has been paid to the influence of the particle size distribution on the applicability of the mean-field model. The two main effects of the dipolar interaction (coercivity and distortion of the thermal dependence of the apparent magnetic moment) have been correlated.

Original languageEnglish
Article number174424
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume72
Issue number17
DOIs
Publication statusPublished - Nov 1 2005

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Coercive force
Magnetic moments
coercivity
magnetic moments
moments
Particle interactions
particle interactions
Hysteresis loops
particle size distribution
Particle size analysis
hysteresis
interactions
Temperature
temperature dependence
Hot Temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Relationship between coercivity and magnetic moment of superparamagnetic particles with dipolar interaction. / Franco, V.; Conde, C. F.; Conde, A.; Kiss, L.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 72, No. 17, 174424, 01.11.2005.

Research output: Contribution to journalArticle

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