MAGNETISM AT SURFACES AND INTERFACES.
MAGNETISM AT SURFACES AND INTERFACES.
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表面和界面的磁性。
DOI：
10.1051/jphyscol:1982725
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发表时间：
1982
期刊：
影响因子：
--
通讯作者：
E. Wimmer
中科院分区：
文献类型：
--
作者：
A. Freeman;H. Krakauer;S. Ohnishi;Ding;M. Weinert;E. Wimmer
最近在表面研究的实验进展提出了重要的问题，我们对这些现象的基本理解。一个重要的后果，这一直是理论/计算方法的发展，准确地确定电子结构和性能的表面和界面。本讲座报告了自由表面磁性的理论测定[例如，Ni（110）]和覆盖层[例如，Ni on Cu（001）]基于自洽自旋极化能带确定表面态的能量色散和空间特征。特别注意表面自旋极化，磁矩和交换分裂的表面状态的影响。详细的结果的电荷和自旋密度和层投影态密度。与相关的光发射和其他实验进行了比较，描述了磁“死”层的不存在，并与相干调制Cu/Ni结构的早期结果进行了比较。
Recent experimental advances in the study of surfaces have raised important questions about our fundamental understanding of these phenomena. One important consequence of this has been the development of theoretical/computational methods for accurately determining the electronic structure and properties of surfaces and interfaces. This talk reports on theoretical determinations of the magnetic properties of free surfaces [e.g., Ni(110)] and overlayers [e.g., Ni on Cu(001)] based on self‐consistent spin polarized energy band determinations of the energy dispersion and spatial character of surface states. Particular attention is paid to surface state effects on surface spin polarization, magnetic moments, and exchange splittings. Detailed results of charge and spin densities and layer projected density of states are presented. Comparisons are made to relevant photo‐emission and other experiments, the nonexistence of magnetically ’’dead’’ layers is described, and comparisons with earlier results1 on coherent modulated Cu/Ni structures are given.