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研究了1∶1型MnP基系列合金MnP1-xMx(M=Si,Sb,Ge,Zn,Sn)(x=0,0.1)的结构及其磁热效应。室温X射线衍射表明该系列合金的主相结构均为正交MnP结构,空间群为Pnma。在用Ge,Sb,Zn,Sn作为替代元素的合金中存在少量第二相Mn5.64P3。磁性测量表明该系列合金MnP1-xMx(M=Si,Sb,Ge,Zn,Sn)(x=0,0.1)的存在由铁磁-顺磁的二级相变。其居里温度Tc分别为286,295,294,295,295K。通过磁化曲线计算了MnP1-xMx(M=Si,Sb,Ge,Zn,Sn)(x=0,0.1)合金的最大等温磁熵变-ΔSm,均在0.7～1.3J.kg-.1K-1之间。
The structure and magnetocaloric effect of MnP1-xMx (M = Si, Sb, Ge, Zn, Sn) (x = 0,0.1) X-ray diffraction at room temperature shows that the main phase structures of the alloys are all orthorhombic MnP structures and the space group is Pnma. In the alloys with Ge, Sb, Zn and Sn as alternative elements, there is a small amount of second phase Mn5.64P3. Magnetic measurements showed that the existence of MnP1-xMx (M = Si, Sb, Ge, Zn, Sn) (x = 0,0.1) The Curie temperature Tc were 286,295,294,295,295K. The maximum isothermal magnetic entropy change -ΔSm of MnP1-xMx (M = Si, Sb, Ge, Zn, Sn) 1 between.