부산대학교 도서관

Rare-earth-transition-metal intermetallics show very interesting magnetic properties for numerous applications (hard magnetic materials, magnetic refrigeration, ...). This paper is devoted to the study of the structural, magnetic, and magnetocaloric effect (MCE) of the intermetallic nanomaterials PrCo33R3¯m3245, which derives from the PuNi33R3¯m3245 type structure. This system crystallizes into the rhombohedral structure (33R3¯m3245 space group). PrCo33R3¯m3245 compound exhibits a second-order ferro-paramagnetic transition at around 330 K. This 1:3 system, based on a stacked Pr33R3¯m3245Co33R3¯m3245 and PrCo33R3¯m3245 units, has a magnetocaloric effect of 1.3 J/kg K at low field. In addition, we demonstrated that the MCE derived from phenomenological and experimental approaches were in agreement.