在线阅读 --自然科学版 2003年4期《一类钴基化合物的分子场理论分析》
一类钴基化合物的分子场理论分析--[在线阅读]
张向牧
沧州师范专科学校物理系, 河北沧州 061001
起止页码: 364--367页
DOI:
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.

Molecular Field Theory Analysis of Co-based Compounds
ZHANG Xiang-mu
Department of Physics, Cangzhou Normal College, Hebei Cangzhou 061001, China
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.

收稿日期: 2003-3-26
基金项目:

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