Effect of the sign of anisotropy constants on the properties of the system of interacting ferromagnetic nanoparticles

M. Sadek , M. Marchwiany , M. Woinska , A. Majhofer , Jacek Gosk , A. Twardowski , J. Szczytko

Abstract

We use the Monte Carlo simulation method to investigate the influence of the signs of magnetocrystalline anisotropy constants and the magnetic dipole-dipole interactions on the zero field cooled-field cooled magnetization experiments and hysteresis curves of a system of magnetic nanoparticles. Positive first cubic anisotropy constant K1 results in larger blocking temperatures and larger coercive fields of a system, while the second anisotropy constant K2 is practically of negligible importance for the phenomena investigated. Magnetic dipole-dipole interactions are important only in the most dense systems of particles and their effects practically disappear for systems where the distance between the closest particles exceeds three particle diameters.
Author M. Sadek
M. Sadek,,
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, M. Marchwiany
M. Marchwiany,,
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, M. Woinska
M. Woinska,,
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, A. Majhofer
A. Majhofer,,
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, Jacek Gosk ZJCS
Jacek Gosk,,
- Solid State Ionics Division
, A. Twardowski
A. Twardowski,,
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, J. Szczytko
J. Szczytko,,
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Journal seriesActa Physica Polonica A, ISSN 0587-4246
Issue year2016
Vol129
No1
PagesA53-A55
Publication size in sheets0.3
Keywords in EnglishAnisotropy; Dipole moment; Electric dipole moments; Intelligent systems; Magnetism; Magnetocrystalline anisotropy; Monte Carlo methods; Nanoparticles, Anisotropy constants; Blocking temperature; Ferromagnetic nanoparticles; Magnetic dipole-dipole interaction; Magnetic nano-particles; Magnetocrystalline anisotropy constant; Monte Carlo simulation methods; Zero field cooled-field cooled magnetizations, Nanomagnetics
DOIDOI:10.12693/APhysPolA.129.A-53
URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-84964804387&partnerID=40&md5=d6192efecf87723a6161d077f6d8de36
Languageen angielski
File
sadek2016app.pdf / 406.49 KB / sadek2016app.pdf 406.49 KB
Score (nominal)15
ScoreMinisterial score = 15.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 15.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 0.469 (2) - 2016=0.489 (5)
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