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Título:
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Long-time calculation of the thermal magnetization reversal using Metropolis Monte Carlo
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Autores:
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Chubykalo-Fesenko, Oksana ;
Kauffman, J. ;
Lengsfield, B. ;
Smirnov Rueda, Román
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Tipo de documento:
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texto impreso
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Editorial:
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Elsevier Science BV, 2002-04
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/restrictedAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Física matemática
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Tipo = Artículo
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Resumen:
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The standard Metropolis Monte Carlo is used to simulate thermal magnetization decay in ensemble of interacting and non-interacting particles. The fitting of demagnetization curves to simple Neel Arrhenius model, using the volume distribution, suggests that in I non-interacting case one Monte Carlo step is proportional to a square root of time. The same dependence arises from the consideration of magnetic particle moving in the external potential according to Brownian dynamics. This constitutes the basis of the so-called Monte Carlo With quantified time step The analytical calculations show that the method works reasonably in the case of small-to-intermediate size barriers and for a high anisotropy system. The application of the method to magnetic recording media reveals qualitatively the same dependence on the exchange parameter as Obtained by kinetic Monte Carlo.
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En línea:
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https://eprints.ucm.es/id/eprint/20224/1/Smirnov07.pdf
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