Substituted MnAs0.97P0.03 manganese arsenide is prepared, and its structural, magnetic, and magnetocaloric properties are studied. At ~260 K, an abrupt decrease in the magnetization of the sample is observed, which is interpreted as a ferromagnetic–paramagnetic transition. The magnetostructural phase transition is accompanied by the magnetocaloric effect, which is observed in magnetic fields up to 13.5 T.
Mitsiuk et al. (Mon,) studied this question.