| 一类钴基化合物的分子场理论分析 |
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| 引用本文： | 张向牧.一类钴基化合物的分子场理论分析[J].河北师范大学学报(自然科学版),2003,27(4):364-367. |
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| 作者姓名： | 张向牧 |
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| 作者单位： | 沧州师范专科学校,物理系,河北,沧州,061001 |
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| 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电子问的交换所决定。
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| 关 键 词： | 钴基化合物 两格点分子场理论 磁矩 磁化 磁作用 居里温度 电子交换 |
| 文章编号： | 1000-5854(2003)04-0364-04 |
| 修稿时间： | 2003年3月26日 |
Molecular Field Theory Analysis of Co-based Compounds |
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| ZHANG Xiang,mu.Molecular Field Theory Analysis of Co-based Compounds[J].Journal of Hebei Normal University,2003,27(4):364-367. |
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| Authors: | ZHANG Xiang mu |
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| Abstract: | The temperature dependence of magnetization of the RCo 5(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. |
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| Keywords: | Co based compounds two sublattice molecular field theory magnetization exchange interaction Curie temperature |
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