Magnetocaloric effect in Ni2+xMn1-xGa Heusler alloys

A. A. Cherechukin; T. Takagi; M. Matsumoto; V. D. Buchel'Nikov

doi:10.1016/j.physleta.2004.03.072

Magnetocaloric effect in Ni_2+xMn_1-xGa Heusler alloys

A. A. Cherechukin, T. Takagi, M. Matsumoto, V. D. Buchel'Nikov

Center for Fundamental Research on Nuclear Decommissioning (CFReND)

Research output: Contribution to journal › Article › peer-review

72 Citations (Scopus)

Abstract

Compositional dependence of magnetic entropy change in Ni _2+xMn_1-xGa Heusler alloys was investigated experimentally. The largest entropy change ΔS=20.7±1.5 J/Kkg in the magnetic field H=1.8 T was revealed in the Ni_2.18Mn_0.82Ga alloy at a magneto-structural phase transition temperature of T_s=333.2 K. Magnetic-field-induced structural phase transition was observed.

Original language	English
Pages (from-to)	146-151
Number of pages	6
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	326
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physleta.2004.03.072
Publication status	Published - 2004 May 31

Keywords

64.70.Kb
75.20.En
75.30.Sg
75.50.Cc
Entropy change
Magnetic and structural phase transitions
Magnetocaloric effect
NiMnGa

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1016/j.physleta.2004.03.072

Cite this

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title = "Magnetocaloric effect in Ni2+xMn1-xGa Heusler alloys",

abstract = "Compositional dependence of magnetic entropy change in Ni 2+xMn1-xGa Heusler alloys was investigated experimentally. The largest entropy change ΔS=20.7±1.5 J/Kkg in the magnetic field H=1.8 T was revealed in the Ni2.18Mn0.82Ga alloy at a magneto-structural phase transition temperature of Ts=333.2 K. Magnetic-field-induced structural phase transition was observed.",

keywords = "64.70.Kb, 75.20.En, 75.30.Sg, 75.50.Cc, Entropy change, Magnetic and structural phase transitions, Magnetocaloric effect, NiMnGa",

author = "Cherechukin, {A. A.} and T. Takagi and M. Matsumoto and Buchel'Nikov, {V. D.}",

note = "Funding Information: The work was partly supported by the Russian Ministry of Education, Grant-in-Aid No. E02-3.4-35.",

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doi = "10.1016/j.physleta.2004.03.072",

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T1 - Magnetocaloric effect in Ni2+xMn1-xGa Heusler alloys

AU - Cherechukin, A. A.

AU - Takagi, T.

AU - Matsumoto, M.

AU - Buchel'Nikov, V. D.

N1 - Funding Information: The work was partly supported by the Russian Ministry of Education, Grant-in-Aid No. E02-3.4-35.

PY - 2004/5/31

Y1 - 2004/5/31

N2 - Compositional dependence of magnetic entropy change in Ni 2+xMn1-xGa Heusler alloys was investigated experimentally. The largest entropy change ΔS=20.7±1.5 J/Kkg in the magnetic field H=1.8 T was revealed in the Ni2.18Mn0.82Ga alloy at a magneto-structural phase transition temperature of Ts=333.2 K. Magnetic-field-induced structural phase transition was observed.

AB - Compositional dependence of magnetic entropy change in Ni 2+xMn1-xGa Heusler alloys was investigated experimentally. The largest entropy change ΔS=20.7±1.5 J/Kkg in the magnetic field H=1.8 T was revealed in the Ni2.18Mn0.82Ga alloy at a magneto-structural phase transition temperature of Ts=333.2 K. Magnetic-field-induced structural phase transition was observed.

KW - 64.70.Kb

KW - 75.20.En

KW - 75.30.Sg

KW - 75.50.Cc

KW - Entropy change

KW - Magnetic and structural phase transitions

KW - Magnetocaloric effect

KW - NiMnGa

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