Procedure of determination of magnetic part of the specific heat of ferromagnetic (FM) solid from the results of the low-temperature measurements is proposed and applied to the number of non-stoichiometric Ni₅₀Mn_50-xIn_x alloys. It is shown that the disregard of magnetic contribution to the specific heat of FM solid results in the noticeable underestimation of Debye temperature and overestimation of the specific heat of electron subsystem of FM solid. The magnetic contribution to the low-temperature specific heat of antiferromagnetic (AFM) solid is negligibly small if Néel temperature exceeds the Debye temperature. In the opposite case the magnetic part of the specific heat of AFM solid may be comparable in value with non-magnetic part, but separation of these parts is an open problem.

提出了根据低温测量结果确定铁磁 (FM) 固体比热的磁性部分的程序，并将其应用于非化学计量的 Ni ₅₀ Mn _50-x In _{x 的数量}合金。结果表明，忽略磁性对调频固体比热的贡献，导致德拜温度明显低估，而调频固体电子子系统的比热高估。如果 Néel 温度超过 Debye 温度，则对反铁磁 (AFM) 固体的低温比热的磁性贡献可以忽略不计。在相反的情况下，AFM 固体比热的磁性部分可能与非磁性部分的价值相当，但这些部分的分离是一个悬而未决的问题。