ChemInform Abstract: Large Magnetocaloric Effect in Laves Phase TbMn_1.8Fe_0.2 Compound over a Wide Temperature Range.

Abstract

Large Magnetocaloric Effect in Laves Phase TbMn 1.8 Fe 0.2 Compound over a Wide Temperature Range. -The title compound is characterized by magnetization and heat capacity measurements. TbMn1.8Fe0.2 exhibits a large magnetocaloric effect over a wide effective temperature range, related to a second-order magnetic Tb-Tb sublattice ordering transition at its Curie temperature of about 80 K. The compound does not show hysteresis effects, is easy to synthesize, and exhibits high chemical and physical stabilities, which suggests that the material is a promising candidate for magnetic refrigeration applications in the temperature range 45-120 K. -(GAO*, T.; NISHIMURA, K.; LI, L.; NAMIKI, T.; ISIKAWA, Y.; J. Alloys Compd. 530 (2012) 26-29, http://dx.