1. Magnetic properties and magnetocaloric effect in TmZnAl and TmAgAl compounds.
- Author
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Zhang, Yikun, Hou, Long, Ren, Zhongming, Li, Xi, and Wilde, Gerhard
- Subjects
- *
MAGNETOCALORIC effects , *MAGNETIC properties , *INTERMETALLIC compounds , *CURIE temperature , *MAGNETIC entropy - Abstract
The magnetic and magnetocaloric properties in the equiatomic intermetallic compounds of TmZnAl and TmAgAl have been investigated. The compounds undergo a second order magnetic transition from paramagnetic to ferromagnetic state around its own Curie temperatures T C ∼2.8 K and 3.3 K for TmZnAl and TmAgAl, respectively. A considerable reversible magnetocaloric effect (MCE) was observed at low temperature. For a magnetic field change of 7 T, the maximum values of magnetic entropy change (−Δ S M max ) and relative cooling power ( RCP ) are 11.8 J/kg K and 289 J/kg for TmZnAl, respectively, and the corresponding values for TmAgAl are 14.1 J/kg K and 315 J/kg. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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