ChemInform Abstract: Magnetic Properties and Magnetocaloric Effect in GdCo₃B₂ Compound.

Abstract

Magnetic Properties and Magnetocaloric Effect in GdCo 3 B 2 Compound. -The title compound is prepared by arc melting of stoichiometric amounts of the elements followed by annealing at 1073 K for one week. The samples are characterized by XRD, magnetization, and specific heat measurements. The maximum magnetic entropy changes reach 5.0 and 11.6 Jkg -1 K -1 for a field change of 2 and 7 T with no obvious hysteresis loss around 56 K, respectively. The corresponding maximum adiabatic temperature changes are 2.8 and 6.4 K. The reversible magnetocaloric effect is related to a second-order Gd-Gd sublattice magnetic phase transition. -(LI*, L.; NISHIMURA, K.; IGAWA, H.; HUO, D.; J. Alloys Compd. 509 (2011) 11, 4198-4200, http://dx.