期刊信息
- 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
- 主办： 河北师范大学
- ISSN： 1000-5854
- CN： 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
Molecular Field Theory Analysis of Co-based Compounds
摘要/Abstract
摘要：
根据两格点分子场理论,在考虑重稀土与钴的磁矩偏离反平行倾角的基础上,分析了钴基化合物Rco5(R=Y,Pr,Nd,Gd,Tb,Dy)的磁化与温度的关系.采用数值拟合的方法得到了描述3种磁作用的分子场系数n(CoCo),n(RCo)和n(RR),计算出了Tc.结果表明,Rco5中的磁作用主要由钴3d电子间的交换所决定.
Abstract：
The temperature dependence of magnetization of the RCo5(R=Y, Pr, Nd, Gd, Tb, Dy) compounds has been analyzed using the two sublattice molecular field theory which allows the heavy rare earth and cobalt moments to deviate from anticollinearity by a canting angle. The molecular field coefficients n (CoCo), n (RCo) and n (RR) are obtained by a numerical fitting process, and Curie temperature is calculated. The results show that the magnetic interactions are dominated by exchange between cobalt 3d electrons principally.