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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2007, Volume 85, Issue 12, Pages 744–750
(Mi jetpl1063)
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This article is cited in 25 scientific papers (total in 25 papers)
CONDENSED MATTER
Generalized Stoner-Wohlfarth model and the non-langevin magnetism of single-domain particles
M. A. Chuev Insitute of Physics and Technology, Russian Academy of Sciences
Abstract:
In order to develop a model of magnetic dynamics for quantitative analysis of the temperature dependences of the magnetization of an ensemble of nanoparticles in various regimes of the preliminary cooling of a sample, the phenomenological Stoner-Wohlfarth model is generalized for single-domain particles to the case of a more accurate description of relaxation processes in a magnetic system. Calculations in this model and their detailed analysis exhibit a number of qualitative features, including the asymptotic behavior of magnetization and susceptibility in the high-temperature limit, which is different from the Langevin limit for ideal superparamagnetic particles.
Received: 19.04.2007
Citation:
M. A. Chuev, “Generalized Stoner-Wohlfarth model and the non-langevin magnetism of single-domain particles”, Pis'ma v Zh. Èksper. Teoret. Fiz., 85:12 (2007), 744–750; JETP Letters, 85:12 (2007), 611–616
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https://www.mathnet.ru/eng/jetpl1063 https://www.mathnet.ru/eng/jetpl/v85/i12/p744
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Abstract page: | 904 | Full-text PDF : | 475 | References: | 63 |
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