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Giant low field magnetocaloric effect and magnetostructural coupling in MnCoGe1-xInx around room temperature.
- Source :
-
Journal of Alloys & Compounds . Jul2018, Vol. 753, p149-154. 6p. - Publication Year :
- 2018
-
Abstract
- Effects on substitution of Ge by In on structural and magnetic properties are studied in MnCoGe 1- x In x compounds. A small amount of In (2% and 5%) dopant can shift the martensite transformation temperature to room temperature and make it overlap with Curie temperature window, which results in a spin-lattice coupling and a large conventional magnetocaloric effect. Giant values of magnetic entropy change ( △S M ) are obtained in both magnetizing and demagnetizing processes in the vicinity of the magnetostructural transition. The maximum values of | △S M | for MnCoGe 0.95 In 0.05 reach 21.4 and 25.4 J/kg K for a small magnetic field change △H = 2–0 and 0–2 T, respectively, which make it promising for room temperature magnetic refrigeration applications. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09258388
- Volume :
- 753
- Database :
- Academic Search Index
- Journal :
- Journal of Alloys & Compounds
- Publication Type :
- Academic Journal
- Accession number :
- 129607591
- Full Text :
- https://doi.org/10.1016/j.jallcom.2018.04.154