材料期刊网

The (Co_0.35Mn_0.65)₂P compound, prepared by a mechanical alloying plus solid sintering process, exhibits a second-order transition from a ferromagnetic state to a paramagnetic one at Curie temperature of about 320 K with no clear thermal hysteresis. A magnetic-entropy change (?S_M) value above 1.6 J?kg^-1?K^-1 for a 5 T  field change is obtained in the whole temperature range of 292.5-352.5 K and the maximum value of the (?S_M is 2.3 ?kg^-1?K^-1  at 337.5 K. The study on the magnetocaloric effect of the (Co_0.35Mn_0.65)₂P compound may be helpful for exploring good candidates for room-temperature magnetic refrigeration.