| Nd~(3+)的稳定能与晶场参数及磁交换作用的关系 |
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| 引用本文： | 张向牧,马文娟,朱明刚. Nd~(3+)的稳定能与晶场参数及磁交换作用的关系[J]. 河北师范大学学报(自然科学版), 2011, 35(6) |
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| 作者姓名： | 张向牧 马文娟 朱明刚 |
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| 作者单位： | 1. 沧州师范学院物理与电子信息系,河北沧州,061001
2. 钢铁研究总院功能材料研究所,北京,100081 |
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| 基金项目： | 国家863计划(2011AA03A401); 河北省教育厅科学研究项目(Z2007226) |
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| 摘 要： | 基于单离子模型,通过对Nd3+磁晶各向异性哈密顿数值的求解,研究了温度趋于0 K时,Nd3+离子稳定能与晶场参数及磁交换作用的关系.结果表明,对于强磁物质(如NdCo5,Nd2Co17,Nd2Fe14B等),Nd3+贡献的稳定能与晶场参数B20近似成正比,而对磁交换作用的变化不敏感.
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| 关 键 词： | 磁晶各向异性 单离子模型 磁交换作用 晶场参数 稳定能 |
Relation Between Stabilization Energy,Crystal Field Coefficient and the Magnetic Exchange Interaction for Nd~(3+) |
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| ZHANG Xiangmu,MA Wenjuan,ZHU Minggang. Relation Between Stabilization Energy,Crystal Field Coefficient and the Magnetic Exchange Interaction for Nd~(3+)[J]. Journal of Hebei Normal University, 2011, 35(6) |
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| Authors: | ZHANG Xiangmu MA Wenjuan ZHU Minggang |
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| Affiliation: | ZHANG Xiangmu1,MA Wenjuan1,ZHU Minggang2(1.Department of Physics and Electronic Information,Cangzhou Teachers College,Hebei Cangzhou 061001,China,2.Division of Functional Material,Central Iron and Steel Research Institute,Beijing 100081,China) |
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| Abstract: | Based on a single-ion model,Hamiltonian form about magnetocrystalline anisotropy for Nd3+ ion is solved using the numerical method.The relation between the stabilization energy,crystal field coefficient B02 and the magnetic exchange interaction is studied as temperature approaches to 0 K.The result shows that the stabilization energy contributed by Nd3+ is linear approximatively with crystal field coefficient B02,but being insensitive to magnetic exchange interaction for strong magnetic substances such as N... |
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| Keywords: | magnetocrystalline anisotropy single ion model magnetic exchange interaction crystal field coefficient stabilization energy |
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