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Study of Magnetocaloric Properties of Ni-Mn-X (X = Ga, In) Heusler Alloys by Monte Carlo Technique

Published online by Cambridge University Press:  31 January 2011

Vasiliy Buchelnikov ,
Vladimir Sokolovskiy ,
Sergey Taskaev  and
Peter Entel
Vasiliy Buchelnikov
Affiliation:
buche@csu.ru, Chelyabinsk State University, Chelyabinsk, Russian Federation
Vladimir Sokolovskiy
Affiliation:
vsokolovsky84@mail.ru, Chelyabinsk State University, Chelyabinsk, Russian Federation
Sergey Taskaev
Affiliation:
tsv@csu.ru, Chelyabinsk State University, Chelyabinsk, Russian Federation
Peter Entel
Affiliation:
entel@thp.uni-duisburg.de, University of Duisburg-Essen, Duisburg, Germany
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Abstract

Two theoretical Monte Carlo models have been presented for description of the positive and negative magnetocaloric effects of Heusler Ni-Mn-X (X = Ga, In) alloys undergoing first order coupled magnetostructural phase transition. For both models all quantities such as temperature dependence of the magnetic contribution to the total specific heat, magnetization and isothermal magnetic entropy change are in qualitative agreement with the available experimental data.

Keywords

magnetic propertiesalloyferromagnetic
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1200: Symposium G – Magnetic Shape Memory Alloys , 2009 , 1200-G09-06
Copyright
Copyright © Materials Research Society 2010

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