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Mean-Field Approximation of the Mixed Spin Ising Ferrimagnets - Couverture souple

Mohamad, Hadey Kasim

 
9783639703474: Mean-Field Approximation of the Mixed Spin Ising Ferrimagnets
Couverture souple
ISBN 10 : 3639703472 ISBN 13 : 9783639703474
Editeur : Scholars' Press, 2013

Synopsis

Recently, there has been a number of extensive works on mixed spin Ising systems both theoretically and experimentally,since such systems are important magnetic materials for technology of thermo-magnetic recording. Ferrimagnets have several sublattices with a finite resultant moment. However, they normally take complicated magnetic structures. Because of the complexity of the structures, the author applied the standard mean-field theory for mixed spin Ising ferrimagnets.The mean-field approximation is an adequate starting point as it describes cooperative phenomena in which the effect of the ordering interaction is represented by that of a mean field proportional to the average net magnetic moment of a magnetic system.In this work, we have examined the effect of a single-ion anisotropy as well as an applied magnetic field on the existence and location of a compensation temperature to clarify the characteristic features in a series of molecular-based magnets. So, our investigations predict the possibility of many compensation points at low temperatures depending mainly on the negative and positive values of both anisotropies, and some characteristic values of the external fields.

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Présentation de l'éditeur

Recently, there has been a number of extensive works on mixed spin Ising systems both theoretically and experimentally,since such systems are important magnetic materials for technology of thermo-magnetic recording. Ferrimagnets have several sublattices with a finite resultant moment. However, they normally take complicated magnetic structures. Because of the complexity of the structures, the author applied the standard mean-field theory for mixed spin Ising ferrimagnets.The mean-field approximation is an adequate starting point as it describes cooperative phenomena in which the effect of the ordering interaction is represented by that of a mean field proportional to the average net magnetic moment of a magnetic system.In this work, we have examined the effect of a single-ion anisotropy as well as an applied magnetic field on the existence and location of a compensation temperature to clarify the characteristic features in a series of molecular-based magnets. So, our investigations predict the possibility of many compensation points at low temperatures depending mainly on the negative and positive values of both anisotropies, and some characteristic values of the external fields.

Biographie de l'auteur

Dr.Hadey K. Mohamad,PhD in Condensed Matter Physics/Voronezh State University-Russia2010. A faculty member in University of Elmergib -College of Science-Physics Dept.,Libya(2001-2005).Al-Muthanna University-College of Science-Physics Department(2011-present).Head of Dept.of Mathematics and Computer Applications(2012-1013),IRQ.Published papers: 10

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
Scholars' Press
Date d'édition
2013
Langue
anglais
ISBN 10 
3639703472
ISBN 13 
9783639703474
Reliure
Broché
Nombre de pages
116
Coordonnées du fabricant
non disponible
Personne responsable
non disponible