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

V.V. Sokolovskiy; Vasiliy D. Buchelnikov; Sergey Taskaev

doi:10.4028/www.scientific.net/SSP.152-153.493

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HomeSolid State PhenomenaSolid State Phenomena Vols. 152-153Monte-Carlo Calculation of the Magnetocaloric...

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

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.