The Magnetocaloric Effect in Ni-Mn-X (X=Ga, in) Heusler Alloys and Manganites with Magnetic Transition close to Room Temperature

Vasiliy D. Buchelnikov; Mikhail Drobosyuk; E.A. Smyshlyaev; O.O. Pavlukhina; A.V. Andreevskikh; V.V. Sokolovskiy; Sergey Taskaev; V.V. Koledov; V.G. Shavrov; V.V. Khovaylo; A.A. Fediy

doi:10.4028/www.scientific.net/SSP.168-169.165

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HomeSolid State PhenomenaSolid State Phenomena Vols. 168-169The Magnetocaloric Effect in Ni-Mn-X (X=Ga, in)...

The Magnetocaloric Effect in Ni-Mn-X (X=Ga, in) Heusler Alloys and Manganites with Magnetic Transition close to Room Temperature

Abstract:

The magnetocaloric effect (MCE) in theNi2+xMn1-xGa (x = 0.33, 0.36, 0.39), Ni50Mn25In25, Ni54Mn21Ga18In7, Ni53.5Mn21.5Ga16In9, Ni45Co5Mn36.5In13.5 Heusler alloys and in the La0.7BayCa0.3-yMnO3 (y = 0.12, 0.24, 0.3) manganites at the Curie points have been measured by the direct method. For the magnetic field change H = 2 T, the maximal adiabatic temperature change Tad in the Ni2+xMn1-xGa alloys is larger than 0.6 K. For the Ni50Mn25In25 alloy the maximal value of Tad = 1.51 K (for the same magnetic field change H = 2 T) is observed at the magnetic phase transition temperature.

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Solid State Phenomena (Volumes 168-169)

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165-168

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https://doi.org/10.4028/www.scientific.net/SSP.168-169.165

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December 2010

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Vasiliy D. Buchelnikov, Mikhail Drobosyuk, E.A. Smyshlyaev, O.O. Pavlukhina, A.V. Andreevskikh, V.V. Sokolovskiy, Sergey Taskaev, V.V. Koledov, V.G. Shavrov, V.V. Khovaylo, A.A. Fediy

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Heusler Alloy, Magnetocaloric Effect

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