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Large magnetocaloric effect at low magnetic field in Ni50-xCoxMn35In15 ribbons.
- Source :
-
Journal of Applied Physics . Apr2011, Vol. 109 Issue 7, p07A903-07A903-3. 1p. - Publication Year :
- 2011
-
Abstract
- Recently, the magnetocaloric effect (MCE) of Ni-Mn-based Heusler alloys has attracted more attention due to its metamagnetic shape-memory effect. However, most MCE investigations focused on the bulk alloys developed at high magnetic field (>2 T). In this paper, by employing the melt-spinning technique, a large MCE at low magnetic field was found in a ribbon of Ni50-xCoxMn35In15. The magnetic entropy change ΔS reaches the maximum value of 5.35 J/kg K at 1 T field in the Ni49CoMn35In15 ribbon near room temperature, and its corresponding temperature span arrives 24 K. The refrigerant capacity is enhanced with the increase of the Co substitution. Such a large MCE at low magnetic field in the Ni50-x CoxMn35In15 ribbon with a wide temperature range provides a potential candidate for room temperature magnetic refrigeration. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 109
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 86445152
- Full Text :
- https://doi.org/10.1063/1.3540649