1. Magnetic and magnetocaloric properties of the ternary cadmium based intermetallic compounds of Gd2Cu2Cd and Er2Cu2Cd.
- Author
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Yang, Yang, Zhang, Yikun, Xu, Xiao, Geng, Shuhua, Hou, Long, Li, Xi, Ren, Zhongming, and Wilde, Gerhard
- Subjects
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COPPER compounds , *TERNARY alloys , *CADMIUM , *MAGNETOCALORIC effects , *MAGNETIC properties of metals , *INTERMETALLIC compounds - Abstract
The magnetic properties, magnetocaloric effect (MCE) and universal behaviour of ternary Cadmium compounds Gd 2 Cu 2 Cd and Er 2 Cu 2 Cd have been investigated systematically. A second order magnetic phase transition from a paramagnetic to ferromagnetic state is observed for Gd 2 Cu 2 Cd and Er 2 Cu 2 Cd at their own Curie temperatures of T C ∼120 and 36 K, respectively. A large reversible MCE occurs near its own T C for both compounds. The maximum values of magnetic entropy change (−Δ S M max ) are 10.1 and 19.1 J/kg K under a magnetic field change of 0–7 T with no obviously hysteresis loss for Gd 2 Cu 2 Cd and Er 2 Cu 2 Cd, respectively. The corresponding values of refrigerant capacity ( RC ) and relative cooling power ( RCP ) are evaluated to be 386 and 373 J/kg, and to be 525 and 489 J/kg, respectively. The rescaled magnetic entropy change curves collapse onto a single curve for various magnetic fields, further confirming the Gd 2 Cu 2 Cd and Er 2 Cu 2 Cd compounds with the second order phase transition. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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