Thermal transport properties of magnetic refrigerants La(Fe xSi1-x)13 and their hydrides, and Gd 5Si2Ge2 and MnAs

S. Fujieda; Y. Hasegawa; A. Fujita; K. Fukamichi

doi:10.1063/1.1643774

Thermal transport properties of magnetic refrigerants La(Fe _xSi_1-x)₁₃ and their hydrides, and Gd ₅Si₂Ge₂ and MnAs

S. Fujieda, Y. Hasegawa, A. Fujita, K. Fukamichi

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

102 Citations (Scopus)

Abstract

The thermal diffusion and thermal conductivity based properties of magnetic refrigerants were investigated. The understudied magnetic refrigerants were that of La(Fe_xSi_1-x)₁₃ and their hydrides. The refrigerants exhibited large magnetocaloric effects due to the electron metamagnetic transitions over a wide range of room temperature. The La-based refrigerants were found to exhibit larger thermal conductivity than the other candidates for magnetic refrigerants, such as Gd-based compounds and MnAs. Whereas, the thermal diffusivity of the La-based refrigerants in the vicinity of room temperature was larger than that of MnAs and was as large as that for Gd-based refrigerants.

Original language	English
Pages (from-to)	2429-2431
Number of pages	3
Journal	Journal of Applied Physics
Volume	95
Issue number	5
DOIs	https://doi.org/10.1063/1.1643774
Publication status	Published - 2004 Mar 1

ASJC Scopus subject areas

Physics and Astronomy(all)

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abstract = "The thermal diffusion and thermal conductivity based properties of magnetic refrigerants were investigated. The understudied magnetic refrigerants were that of La(FexSi1-x)13 and their hydrides. The refrigerants exhibited large magnetocaloric effects due to the electron metamagnetic transitions over a wide range of room temperature. The La-based refrigerants were found to exhibit larger thermal conductivity than the other candidates for magnetic refrigerants, such as Gd-based compounds and MnAs. Whereas, the thermal diffusivity of the La-based refrigerants in the vicinity of room temperature was larger than that of MnAs and was as large as that for Gd-based refrigerants.",

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AU - Fujita, A.

AU - Fukamichi, K.

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N2 - The thermal diffusion and thermal conductivity based properties of magnetic refrigerants were investigated. The understudied magnetic refrigerants were that of La(FexSi1-x)13 and their hydrides. The refrigerants exhibited large magnetocaloric effects due to the electron metamagnetic transitions over a wide range of room temperature. The La-based refrigerants were found to exhibit larger thermal conductivity than the other candidates for magnetic refrigerants, such as Gd-based compounds and MnAs. Whereas, the thermal diffusivity of the La-based refrigerants in the vicinity of room temperature was larger than that of MnAs and was as large as that for Gd-based refrigerants.

AB - The thermal diffusion and thermal conductivity based properties of magnetic refrigerants were investigated. The understudied magnetic refrigerants were that of La(FexSi1-x)13 and their hydrides. The refrigerants exhibited large magnetocaloric effects due to the electron metamagnetic transitions over a wide range of room temperature. The La-based refrigerants were found to exhibit larger thermal conductivity than the other candidates for magnetic refrigerants, such as Gd-based compounds and MnAs. Whereas, the thermal diffusivity of the La-based refrigerants in the vicinity of room temperature was larger than that of MnAs and was as large as that for Gd-based refrigerants.

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Thermal transport properties of magnetic refrigerants La(Fe _xSi_1-x)₁₃ and their hydrides, and Gd ₅Si₂Ge₂ and MnAs

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