Magnetic properties and giant reversible magnetocaloric effect in the GdCoC2 compound


Magnetic properties and giant reversible magnetocaloric effect in the GdCoC2 compound

Meng, L.; Xu, C.; Yuan, Y.; Qi, Y.; Zhou, S.; Li, L.

The crystal structure, magnetic properties and magnetocaloric effect (MCE) of GdCoC2 have been studied. The compound crystallizes in an orthorhombic CeNiC2-type structure which belongs to Amm2 space group. A giant reversible MCE is observed in GdCoC2 accompanied by a second-order paramagnetic to ferromagnetic (PM-FM) phase transition around the Curie temperature ~15 K. For the magnetic field change of 0-5 T, the maximum values of the magnetic entropy change (-ΔSMmax), relative cooling power (RCP), and refrigerant capacity (RC) are 28.4J/kg K, 566 J/kg and 369 J/kg, respectively. The present results indicate that the GdCoC2 compound is a promising candidate for low temperature magnetic refrigeration.

Keywords: GdCoC2 compound; magnetocaloric effect; magnetic properties; magnetic refrigeration

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Publ.-Id: 24034