Large magnetocaloric effect in rapidly quenched Mn 50- x Co x Ni 40 In 10 nanomaterials
Journal Article
·
· Journal of Physics. D, Applied Physics
- OSTI
The effect of Co addition on magnetic hysteresis, martensitic transformation temperature, and magnetic entropy change of rapidly-quenched Mn50-xCoxNi40In10alloy nanomaterials has been investigated. The melt-spun Mn50Ni40In10sample 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 Mn50Ni40In10to 378 K for Mn45Co5Ni40In10. The Mn47Co3Ni40In10alloy, which has phase-transition temperature close to room temperature, exhibits a substantial peak entropy change of 29.7 J kg-1K-1at magnetic field change of 2 T. Our results demonstrate that Mn47Co3Ni40In10nanomaterial exhibits promising magnetocaloric properties for near-room-temperature magnetic refrigeration.
- Research Organization:
- Univ. of Nebraska, Lincoln, NE (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- FG02-04ER46152
- OSTI ID:
- 1849541
- Journal Information:
- Journal of Physics. D, Applied Physics, Journal Name: Journal of Physics. D, Applied Physics Journal Issue: 17 Vol. 54; ISSN 0022-3727
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
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