| R3Co11B4中的磁作用 |
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| 引用本文： | 游阳明,程金阁,张向牧.R3Co11B4中的磁作用[J].河北师范大学学报(自然科学版),2004,28(1):42-45. |
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| 作者姓名： | 游阳明 程金阁 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;沧州师范专科学校,物理系,河北,沧州,061001;沧州师范专科学校,物理系,河北,沧州,061001 |
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| 摘 要： | 用两格点分子场理论分析了钴基合金R3Co11B4(R=Pr,Nd,Tb,Dy)的自发磁化随温度变化的关系,采用数值拟合的方法计算出了描述3种磁作用的分子场系数n(RR),n(RCo)和n(CoCo),得到了居里温度,给出了交换场强度随温度变化的曲线.
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| 关 键 词： | 两格点分子场理论 交换场强度 磁作用 分子场系数 居里温度 |
| 文章编号： | 1000-5854(2004)01-0042-04 |
| 修稿时间： | 2003年9月1日 |
Magnetic Interaction in R3Co11B4 |
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| YOU Yang-ming,CHENG Jin-ge,ZHANG Xiang-mu.Magnetic Interaction in R3Co11B4[J].Journal of Hebei Normal University,2004,28(1):42-45. |
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| Authors: | YOU Yang-ming CHENG Jin-ge ZHANG Xiang-mu |
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| Abstract: | Through the two-sublattice molecular field theory,the temperature dependence of the spontaneous magnetization of R_3Co_(11)B_4(R=Pr,Nd,Tb,Dy) alloys has been analysed.Three molecular field coefficients,n(RR),n(RCo),n(CoCo),which describe three kinds of magnetic interactions,have been calculated by a numerical fitting process.Curie temperatures of the alloys are obtained.And also the curves of the exchange field intensity varying with temperature are plotted. |
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| Keywords: | two-sublattice molecular field theory exchange field intensity magnetic interaction mol-ecular field coefficient Curie temperature |
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