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Monte-Carlo Calculation of the Magnetocaloric Effect in Ni-Mn-Ga Alloys

Journal Solid State Phenomena (Volumes 152 - 153)
Volume Magnetism and Magnetic Materials
Edited by N. Perov
Pages 493-496
DOI 10.4028/www.scientific.net/SSP.152-153.493
Citation V.V. Sokolovskiy et al., 2009, Solid State Phenomena, 152-153, 493
Online since April, 2009
Authors V.V. Sokolovskiy, Vasiliy D. Buchelnikov, S.V. Taskaev
Keywords Magnetocaloric Effect, Phase Transition, Shape-Memory Heusler Alloy
Abstract

The three-dimensional model for the theoretical description of the phase transformations and the magnetocaloric effect in shape – memory Heusler Ni2+xMn1-xGa alloys (x=0.18 – 0.27) with a coupled magnetostructural phase transition by the classical Monte Carlo method is proposed. It is shown that the isothermal magnetic entropy change upon magnetic field variations from 0 to 5 T and other magnetic properties are in good agreement with the available experimental data.

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