Giant magnetocaloric effect of MnAs1-xSbx

H. Wada; Y. Tanabe

doi:10.1063/1.1419048

Giant magnetocaloric effect of MnAs_1-xSb_x

H. Wada, Y. Tanabe

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

1214 Citations (Scopus)

Abstract

A giant magnetocaloric effect was found in MnAs, which undergoes a first-order ferromagnetic to paramagnetic transition at 318 K. The magnetic entropy change caused by a magnetic field of 5 T is as large as 30 J/K kg at the maximum value, which exceeds that of conventional magnetic refrigerant materials by a factor of 2-4. The adiabatic temperature change reaches 13 K in a field change of 5 T. The substitution of 10% Sb for As reduces the thermal hysteresis and lowers the Curie temperature to 280 K, while the giant magnetocaloric properties are retained.

Original language	English
Pages (from-to)	3302-3304
Number of pages	3
Journal	Applied Physics Letters
Volume	79
Issue number	20
DOIs	https://doi.org/10.1063/1.1419048
Publication status	Published - Nov 12 2001
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.1419048

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AB - A giant magnetocaloric effect was found in MnAs, which undergoes a first-order ferromagnetic to paramagnetic transition at 318 K. The magnetic entropy change caused by a magnetic field of 5 T is as large as 30 J/K kg at the maximum value, which exceeds that of conventional magnetic refrigerant materials by a factor of 2-4. The adiabatic temperature change reaches 13 K in a field change of 5 T. The substitution of 10% Sb for As reduces the thermal hysteresis and lowers the Curie temperature to 280 K, while the giant magnetocaloric properties are retained.

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Giant magnetocaloric effect of MnAs_1-xSb_x

Abstract

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