Direct observation of spin-split electronic states of Pd at the Pd(111)/Fe(110) interface.
Direct observation of spin-split electronic states of Pd at the Pd(111)/Fe(110) interface.
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DOI：
10.1103/physrevlett.66.942
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发表时间：
1991-02
影响因子：
8.6
通讯作者：
Weber;Wesner;Güntherodt;Linke
中科院分区：
文献类型：
--
作者：
Weber;Wesner;Güntherodt;Linke
在Fe（110）外延Pd（111）薄膜的自旋分解和自旋集成光发射中，在Pd - 4d带中发现了自旋分裂界面态。在1和2原子层（AL）之间的Pd厚度中，交换分裂最为明显，与Fe相比，交换分裂约为130±50 meV。在Pd厚度为1.5 ~ 2.7 AL时，Pd（111）的块状态也出现自旋极化，但没有可分辨的交换分裂。在2.7 al以上的Pd厚度，没有明显的Pd自旋极化现象
A spin-split interface state in the Pd 4d band of epitaxial Pd(111) films of Fe(110) has been identified in spin-resolved and spin-integrated photoemission. It is most pronounced for Pd thicknesses between 1 and 2 atomic layers (AL), with an exchange splitting of about 130±50 meV that is inverted compared to that of Fe. Bulklike states of Pd(111) at Pd thicknesses between 1.5 and 2.7 AL also appear spin polarized, but without a resolvable exchange splitting. Above 2.7-AL Pd thickness no spin polarization attributable to Pd is evident