Large magnetocaloric effect in rapidly quenched Mn50-xCo xNi40In10nanomaterials

Wenyong Zhang; Parashu Kharel; Shah Valloppilly; David J. Sellmyer

doi:10.1088/1361-6463/abdf98

Large magnetocaloric effect in rapidly quenched Mn_50-_xCo _xNi₄₀In₁₀nanomaterials

Wenyong Zhang, Parashu Kharel, Shah Valloppilly, David J. Sellmyer

Physics and Astronomy

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

5 Scopus citations

Abstract

The effect of Co addition on magnetic hysteresis, martensitic transformation temperature, and magnetic entropy change of rapidly-quenched Mn50-x Co x Ni40In10 alloy nanomaterials has been investigated. The melt-spun Mn50Ni40In10 sample exhibits a small magnetic hysteresis which is further reduced by Co doping as measured between 0 and 2 T. The martensitic transformation temperature increases linearly with the electron concentration in the alloy from 195 K for Mn50Ni40In10 to 378 K for Mn45Co5Ni40In10. The Mn47Co3Ni40In10 alloy, which has phase-transition temperature close to room temperature, exhibits a substantial peak entropy change of 29.7 J kg-1 K-1 at magnetic field change of 2 T. Our results demonstrate that Mn47Co3Ni40In10 nanomaterial exhibits promising magnetocaloric properties for near-room-temperature magnetic refrigeration.

Original language	English (US)
Article number	175003
Journal	Journal of Physics D: Applied Physics
Volume	54
Issue number	17
DOIs	https://doi.org/10.1088/1361-6463/abdf98
State	Published - Apr 29 2021

Keywords

Curie temperature
entropy change
magnetocaloric materials

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Acoustics and Ultrasonics
Surfaces, Coatings and Films

Access to Document

10.1088/1361-6463/abdf98

Cite this

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title = "Large magnetocaloric effect in rapidly quenched Mn50-xCo xNi40In10nanomaterials",

abstract = "The effect of Co addition on magnetic hysteresis, martensitic transformation temperature, and magnetic entropy change of rapidly-quenched Mn50-x Co x Ni40In10 alloy nanomaterials has been investigated. The melt-spun Mn50Ni40In10 sample exhibits a small magnetic hysteresis which is further reduced by Co doping as measured between 0 and 2 T. The martensitic transformation temperature increases linearly with the electron concentration in the alloy from 195 K for Mn50Ni40In10 to 378 K for Mn45Co5Ni40In10. The Mn47Co3Ni40In10 alloy, which has phase-transition temperature close to room temperature, exhibits a substantial peak entropy change of 29.7 J kg-1 K-1 at magnetic field change of 2 T. Our results demonstrate that Mn47Co3Ni40In10 nanomaterial exhibits promising magnetocaloric properties for near-room-temperature magnetic refrigeration.",

keywords = "Curie temperature, entropy change, magnetocaloric materials",

author = "Wenyong Zhang and Parashu Kharel and Shah Valloppilly and Sellmyer, {David J.}",

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T1 - Large magnetocaloric effect in rapidly quenched Mn50-xCo xNi40In10nanomaterials

AU - Zhang, Wenyong

AU - Kharel, Parashu

AU - Valloppilly, Shah

AU - Sellmyer, David J.

PY - 2021/4/29

Y1 - 2021/4/29

N2 - The effect of Co addition on magnetic hysteresis, martensitic transformation temperature, and magnetic entropy change of rapidly-quenched Mn50-x Co x Ni40In10 alloy nanomaterials has been investigated. The melt-spun Mn50Ni40In10 sample exhibits a small magnetic hysteresis which is further reduced by Co doping as measured between 0 and 2 T. The martensitic transformation temperature increases linearly with the electron concentration in the alloy from 195 K for Mn50Ni40In10 to 378 K for Mn45Co5Ni40In10. The Mn47Co3Ni40In10 alloy, which has phase-transition temperature close to room temperature, exhibits a substantial peak entropy change of 29.7 J kg-1 K-1 at magnetic field change of 2 T. Our results demonstrate that Mn47Co3Ni40In10 nanomaterial exhibits promising magnetocaloric properties for near-room-temperature magnetic refrigeration.

AB - The effect of Co addition on magnetic hysteresis, martensitic transformation temperature, and magnetic entropy change of rapidly-quenched Mn50-x Co x Ni40In10 alloy nanomaterials has been investigated. The melt-spun Mn50Ni40In10 sample exhibits a small magnetic hysteresis which is further reduced by Co doping as measured between 0 and 2 T. The martensitic transformation temperature increases linearly with the electron concentration in the alloy from 195 K for Mn50Ni40In10 to 378 K for Mn45Co5Ni40In10. The Mn47Co3Ni40In10 alloy, which has phase-transition temperature close to room temperature, exhibits a substantial peak entropy change of 29.7 J kg-1 K-1 at magnetic field change of 2 T. Our results demonstrate that Mn47Co3Ni40In10 nanomaterial exhibits promising magnetocaloric properties for near-room-temperature magnetic refrigeration.

KW - Curie temperature

KW - entropy change

KW - magnetocaloric materials

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