Quantized electronic fine structure with large anisotropy in ferromagnetic Fe films
Quantized electronic fine structure with large anisotropy in ferromagnetic Fe films
复制标题
铁磁Fe薄膜中具有大各向异性的量子化电子精细结构
DOI：
10.1103/physrevb.90.035136
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发表时间：
2014
影响因子：
3.7
通讯作者：
F. Reinert
中科院分区：
文献类型：
--
作者：
C. Seibel;A. Nuber;H. Bentmann;M. Mulazzi;P. Blaha;G. Sangiovanni;F. Reinert
本文报道了在W(110)衬底上生长的Fe薄膜中费米能区附近的量子化电子精细结构的光谱观测。用角度分辨光电子能谱检测到低至10 MeV的结合能。发现这些态的能带色散在表面平面内具有明显的各向异性：它在方向上是类自由电子的，但沿方向变得很重。密度泛函理论计算表明，观察到的态同时具有多数自旋和少数自旋特征，并指出大的各向异性可以依赖于Fe层的数量和与衬底的耦合。
We report on the spectroscopic observation of a quantized electronic fine structure near the Fermi energy in thin Fe films grown on W(110). The quantum well states are detected down to binding energies of10 meV by angle-resolved photoelectron spectroscopy. The band dispersion of these states is found to feature a pronounced anisotropy within the surface plane: It is free-electron-like along thedirection while it becomes heavy along. Density functional theory calculations identify the observed states to have both majority and minority spin character and indicate that the large anisotropy can be dependent on the number of Fe layers and coupling to the substrate.
DOI：
--
发表时间：
2011
期刊：
--
影响因子：
--
作者：
M. Rosseinsky
通讯作者：
M. Rosseinsky