Monte Carlo simulations of the magnetocaloric effect in magnetic Ni-Mn-X (X = Ga, In) Heusler alloys

V. D. Buchelnikov; V. V. Sokolovskiy; S. V. Taskaev; V. V. Khovaylo; A. A. Aliev; L. N. Khanov; A. B. Batdalov; P. Entel; H. Miki; T. Takagi

doi:10.1088/0022-3727/44/6/064012

Monte Carlo simulations of the magnetocaloric effect in magnetic Ni-Mn-X (X = Ga, In) Heusler alloys

V. D. Buchelnikov, V. V. Sokolovskiy, S. V. Taskaev, V. V. Khovaylo, A. A. Aliev, L. N. Khanov, A. B. Batdalov, P. Entel, H. Miki, T. Takagi

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62 Citations (Scopus)

Abstract

Monte Carlo simulations were used for a detailed description of magnetic, martensitic and magnetocaloric properties of Ni_2+xMn_1-xGa (0.18 ≤ x ≤ 0.24) and Ni₅₀Mn₃₄ In₁₆ Heusler alloys, which undergo a first-order magnetostructural phase transition. In the simulations we made use of magnetic exchange parameters which were obtained by ab initio calculations. Results of magnetic and lattice contributions to the total specific heat as well as the change in the isothermal magnetic entropy ΔS_mag and the adiabatic temperature ΔT_ad changes around the magnetic and magnetostructural transitions in an external magnetic field agree fairly well with available experimental data.

Original language	English
Article number	064012
Journal	Journal of Physics D: Applied Physics
Volume	44
Issue number	6
DOIs	https://doi.org/10.1088/0022-3727/44/6/064012
Publication status	Published - 2011 Feb 16

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Acoustics and Ultrasonics
Surfaces, Coatings and Films

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10.1088/0022-3727/44/6/064012

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abstract = "Monte Carlo simulations were used for a detailed description of magnetic, martensitic and magnetocaloric properties of Ni2+xMn1-xGa (0.18 ≤ x ≤ 0.24) and Ni50Mn34 In16 Heusler alloys, which undergo a first-order magnetostructural phase transition. In the simulations we made use of magnetic exchange parameters which were obtained by ab initio calculations. Results of magnetic and lattice contributions to the total specific heat as well as the change in the isothermal magnetic entropy ΔSmag and the adiabatic temperature ΔTad changes around the magnetic and magnetostructural transitions in an external magnetic field agree fairly well with available experimental data.",

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AU - Buchelnikov, V. D.

AU - Sokolovskiy, V. V.

AU - Taskaev, S. V.

AU - Khovaylo, V. V.

AU - Aliev, A. A.

AU - Khanov, L. N.

AU - Batdalov, A. B.

AU - Entel, P.

AU - Miki, H.

AU - Takagi, T.

PY - 2011/2/16

Y1 - 2011/2/16

N2 - Monte Carlo simulations were used for a detailed description of magnetic, martensitic and magnetocaloric properties of Ni2+xMn1-xGa (0.18 ≤ x ≤ 0.24) and Ni50Mn34 In16 Heusler alloys, which undergo a first-order magnetostructural phase transition. In the simulations we made use of magnetic exchange parameters which were obtained by ab initio calculations. Results of magnetic and lattice contributions to the total specific heat as well as the change in the isothermal magnetic entropy ΔSmag and the adiabatic temperature ΔTad changes around the magnetic and magnetostructural transitions in an external magnetic field agree fairly well with available experimental data.

AB - Monte Carlo simulations were used for a detailed description of magnetic, martensitic and magnetocaloric properties of Ni2+xMn1-xGa (0.18 ≤ x ≤ 0.24) and Ni50Mn34 In16 Heusler alloys, which undergo a first-order magnetostructural phase transition. In the simulations we made use of magnetic exchange parameters which were obtained by ab initio calculations. Results of magnetic and lattice contributions to the total specific heat as well as the change in the isothermal magnetic entropy ΔSmag and the adiabatic temperature ΔTad changes around the magnetic and magnetostructural transitions in an external magnetic field agree fairly well with available experimental data.

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Monte Carlo simulations of the magnetocaloric effect in magnetic Ni-Mn-X (X = Ga, In) Heusler alloys

Abstract

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