摘要
用分子场理论分析了稀土化合物Ｒ２Ｆｅ１７－ｘＭｘ和Ｒ２Ｆｅ１７Ｎ３（Ｒ＝Ｃｅ，Ｐｒ，Ｎｄ；Ｍ＝Ａｌ；ｘ＝０，２）的温度磁化曲线，计算出分子场系数ｎＲＲ、ｎＲＦ、ｎＦＦ。由分子场系数，计算了ＦｅＦｅ、ＲＲ、Ｒ－Ｆｅ的相互作用对Ｔｃ的贡献ＴＦＦ、ＴＲＲ、ＴＲＦ。计算结果显示ＴＦＦ对ＴＣ的影响最大。
The temperature dependence magnetic properties of the R 2Fe 17- x M x and R 2Fe 17 N 3(R=Ce,Pr,Nd; M =Al; x =0.2)compounds are analyzed using a two-sublattic molecular field theroy(MFT).The MFT coefficients n FF ,n Rf and N RR are obtaines. According to the MFT coefficients, T FF , F RF , T RF ,the contributions to T c due to FeFe,RR and RF interationsare calculated for these compounds.
出处
《河北师范大学学报（自然科学版）》
CAS
1997年第2期156-159,共4页
Journal of Hebei Normal University：Natural Science
关键词
分子场理论
分子场系数
稀土合金
居里温度
molecular field theory(MFT)
the MFT coefficients
FeFe interaction
