Quantum confinement in free Cu(111), Ag(111), and Au(111) layers and apparent splitting of surface bands

被引：0
|
作者：
Yakovkin, I. N. [1 ]
机构：
[1] Natl Acad Sci Ukraine, Inst Phys, Prospect Nauki 46, UA-03028 Kiev, Ukraine
来源：
SURFACE SCIENCE | 2020年 / 691卷
关键词：
Surface states; Thin films; Density functional calculations; Cu(111); Ag(111); Au(111);
D O I：
10.1016/j.susc.2019.121501
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The apparent splitting of surface bands of Cu(111), Ag(111), and Au(111) films, obtained in calculations without account for spin-orbit coupling, is usually explained as a result of interaction of surface states located at opposite surfaces of the slabs. However, such twinning of the surface states is absent for other surfaces of noble metals despite the anticipated similar interaction. Here we suggest an alternative explanation and attribute the twinning of the bands to the quantum confinement effect.
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页数：4
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