Magnetic properties of single atoms of Fe and Co on Ir(111) and Pt(111)
Magnetic properties of single atoms of Fe and Co on Ir(111) and Pt(111)
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Ir(111)和Pt(111)上Fe和Co单原子的磁性
DOI：
10.1103/physrevb.77.184425
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发表时间：
2008
影响因子：
3.7
通讯作者：
E. Vedmedenko
中科院分区：
文献类型：
--
作者：
C. Etz;J. Zabloudil;P. Weinberger;E. Vedmedenko
本文采用完全相对论的半无限体系的嵌入团簇和屏蔽Korringa-Kohn-Rostoker方法，研究了Fe和Co单原子在Ir（111）和Pt（111）上的磁性。结果表明，Pt（111）上Fe和Co吸附原子的磁化方向是强垂直取向的，而Ir（111）上Co吸附原子的磁化方向是面外的，Fe吸附原子的磁化方向是面内的.为了比较，也示出了在这两个衬底上的Fe和Co的单层的各向异性能的所谓能带能部分。所获得的结果与最近的实验研究进行了比较，例如，自旋极化STM技术。
In using the fully relativistic versions of the embedded cluster and screened Korringa-Kohn-Rostoker methods for semi-infinite systems the magnetic properties of single adatoms of Fe and Co on Ir(111) and Pt(111) are studied. It is found that for Pt(111) Fe and Co adatoms are strongly perpendicularly oriented, while on Ir(111) the orientation of the magnetization is only out of plane for a Co adatom; for an Fe adatom it is in plane. For comparison, the so-called band energy parts of the anisotropy energy of a single layer of Fe and Co on these two substrates are also shown. The obtained results are compared to recent experimental studies using, e.g., the spin-polarized STM technique.