Ce_2Fe_(17)X(X=0,D_(4.8),N_3)合金的MFT分析

Molecular field theory analysis of Ce_2Fe_17X(X=0,D_(4.8),N_3) alloys

用两格点分子场理论对Ce_2Fe_（17）X(X=0,D_(4.8),N_3)合金(或金属间化合物)的饱和磁化与温度的关系进行了分析,通过对实验数据的拟合计算得到了分子场系数n_(cc)、n_(CF)、n_(FF),计算出了居里温度,给出了各个磁化强度以及分子场强度随温度变化的曲线.

The temperatrue dependence of the magnetization in Ce_2Fe_17X alloys has been analyzid by using the two-sublattice molecular field theory.The molecular field coefficients ncc,n_(CF) and n_(FF)are obtained with numerical methods.Curie temperatrues of the alloys are calculated.The various curves of the magnetization and molecular field changing with temperatrue are also plotted.