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The (Co0.35 Mn0.65)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 (△SM) value above 1.6J·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 △SM is 2.3 J·kg-1·K-1 at 337.5 K.The study on the magnetocaloric effect of the (Co0.35 Mn0.65)2P compound may be helpful for exploring good candidates for room-temperature magnetic refrigeration.
The (Co 0.35 Mn 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 The magnetic-entropy change (ΔSM) value above 1.6J · 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 ΔSM is 2.3 J · kg-1 · K-1 at 337.5 K. The study on the magnetocaloric effect of the (Co 0.35 Mn 0.6) 2P compound may be helpful for exploring good candidates for room-temperature magnetic refrigeration.