Magnetocaloric effect linked to the martensitic transformation in sputter-deposited Ni-Mn-Ga thin films

V. Recarte; J. I. Ṕrez-Landazábal; V. Sánchez-Alárcos; V. A. Chernenko; M. Ohtsuka

doi:10.1063/1.3246149

Magnetocaloric effect linked to the martensitic transformation in sputter-deposited Ni-Mn-Ga thin films

V. Recarte, J. I. Ṕrez-Landazábal, V. Sánchez-Alárcos, V. A. Chernenko, M. Ohtsuka

Center for Mineral Processing and Metallurgy (CMPM)

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

53 Citations (Scopus)

Abstract

In this letter, the analysis of the magnetocaloric effect (MCE) in a thin film of Ni-Mn-Ga alloy sputter deposited on alumina substrate is reported. This film has 0.4 μm thickness and exhibits merged martensitic and ferromagnetic transitions. The temperature dependence of the dc magnetization under different constant applied magnetic fields has been measured. The calculated MCE effect under applied magnetic fields up to 60 kOe shows the feasibility of these materials to be implemented in refrigeration system for functional microsystems. In addition, the shift of the martensitic transformation temperature, as a function of the applied magnetic field, has been determined.

Original language	English
Article number	141908
Journal	Applied Physics Letters
Volume	95
Issue number	14
DOIs	https://doi.org/10.1063/1.3246149
Publication status	Published - 2009

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Magnetocaloric effect linked to the martensitic transformation in sputter-deposited Ni-Mn-Ga thin films",

abstract = "In this letter, the analysis of the magnetocaloric effect (MCE) in a thin film of Ni-Mn-Ga alloy sputter deposited on alumina substrate is reported. This film has 0.4 μm thickness and exhibits merged martensitic and ferromagnetic transitions. The temperature dependence of the dc magnetization under different constant applied magnetic fields has been measured. The calculated MCE effect under applied magnetic fields up to 60 kOe shows the feasibility of these materials to be implemented in refrigeration system for functional microsystems. In addition, the shift of the martensitic transformation temperature, as a function of the applied magnetic field, has been determined.",

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note = "Funding Information: This work has been carried out with the financial support of the Spanish “Ministerio de Ciencia y Tecnolog{\'i}a” (Grant No. MAT2006-12838) and the Government of Navarra (project entitled “Efecto Magnetocal{\'o}rico en Aleaciones con Memoria de Forma Ferromagn{\'e}ticas”)",

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AU - Recarte, V.

AU - Ṕrez-Landazábal, J. I.

AU - Sánchez-Alárcos, V.

AU - Chernenko, V. A.

AU - Ohtsuka, M.

N1 - Funding Information: This work has been carried out with the financial support of the Spanish “Ministerio de Ciencia y Tecnología” (Grant No. MAT2006-12838) and the Government of Navarra (project entitled “Efecto Magnetocalórico en Aleaciones con Memoria de Forma Ferromagnéticas”)

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N2 - In this letter, the analysis of the magnetocaloric effect (MCE) in a thin film of Ni-Mn-Ga alloy sputter deposited on alumina substrate is reported. This film has 0.4 μm thickness and exhibits merged martensitic and ferromagnetic transitions. The temperature dependence of the dc magnetization under different constant applied magnetic fields has been measured. The calculated MCE effect under applied magnetic fields up to 60 kOe shows the feasibility of these materials to be implemented in refrigeration system for functional microsystems. In addition, the shift of the martensitic transformation temperature, as a function of the applied magnetic field, has been determined.

AB - In this letter, the analysis of the magnetocaloric effect (MCE) in a thin film of Ni-Mn-Ga alloy sputter deposited on alumina substrate is reported. This film has 0.4 μm thickness and exhibits merged martensitic and ferromagnetic transitions. The temperature dependence of the dc magnetization under different constant applied magnetic fields has been measured. The calculated MCE effect under applied magnetic fields up to 60 kOe shows the feasibility of these materials to be implemented in refrigeration system for functional microsystems. In addition, the shift of the martensitic transformation temperature, as a function of the applied magnetic field, has been determined.

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Magnetocaloric effect linked to the martensitic transformation in sputter-deposited Ni-Mn-Ga thin films

Abstract

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