Abstract
A large reversible magnetocaloric effect has been observed in Tm 3Co compound. The Tm3Co compound exhibits two successive magnetic transitions with the increasing temperature: antiferromagnetic (AFM) to ferromagnetic (FM) transition at 4.5 K and FM to paramagnetic (PM) transition at 6.5 K. Under a magnetic field change of 5 T, the maximum value of magnetic entropy change -ΔSM is 19.9 J/kg K at 7.5 K and the refrigerant capacity power (RCP) is 300 J/kg with no hysteresis loss. In particular, the large reversible -ΔSM (11.6 J/kg K) is achieved for a low magnetic field change of 2 T. The large reversible magnetocaloric effect (both the large -ΔSM and the high RCP) indicates that Tm 3Co could be a promising candidate for magnetic refrigeration.
Original language | English |
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Pages (from-to) | 1-4 |
Number of pages | 4 |
Journal | Journal of Alloys and Compounds |
Volume | 572 |
DOIs | |
Publication status | Published - 25 Sept 2013 |
Externally published | Yes |
Keywords
- Magnetic entropy change
- Magnetic refrigeration
- Magnetocaloric effect
- Refrigerant capacity power
- TmCo compound