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Monte Carlo Simulations of the Exchange Bias Effect in Heusler Ni50Mn37.5Sb12.5 Alloys Using Real Unit Cell

Published online by Cambridge University Press:  21 March 2011

Vasiliy D. Buchelnikov ,
Ivan A. Taranenko ,
Vladimir V. Sokolovskiy ,
Sergey V. Taskaev ,
Mikhail A. Zagrebin  and
Peter Entel
Vasiliy D. Buchelnikov
Affiliation:
Chelyabinsk State University, Chelyabinsk, 454001, Russia
Ivan A. Taranenko
Affiliation:
Chelyabinsk State University, Chelyabinsk, 454001, Russia
Vladimir V. Sokolovskiy
Affiliation:
Chelyabinsk State University, Chelyabinsk, 454001, Russia
Sergey V. Taskaev
Affiliation:
Chelyabinsk State University, Chelyabinsk, 454001, Russia
Mikhail A. Zagrebin
Affiliation:
Chelyabinsk State University, Chelyabinsk, 454001, Russia
Peter Entel
Affiliation:
University of Duisburg-Essen, Duisburg, 47048, Germany
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Abstract

In present work we propose a theoretical model for investigation of the exchange bias effect in Ni50Mn37.5Sb12.5 alloy. In the model, we use a three-dimensional cubic lattice with periodic boundary conditions. Also we take into account the magnetic interactions between atoms in 1st, 2nd and 3rd coordination spheres and the ferromagnetic and antiferromagnetic anisotropy terms. It is shown that the obtained theoretical temperature dependence of the exchange bias field for Ni50Mn37.5Sb12.5 alloy is close to the experimental data.

Keywords

alloymagnetic propertiesphase transformation
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1310: Symposium FF – Magnetocalorics and Magnetic Cooling , 2011 , mrsf10-1310-ff03-11
Copyright
Copyright © Materials Research Society 2011

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References

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