Superstructures of Se adsorbates on Au(111): Scanning tunneling microscopy and spectroscopy study

被引：6
|
作者：
Lee, Minjun [1 ]
Kang, Sungmo [1 ]
Oh, Myungchul [1 ]
Chae, Jungseok [2 ,3 ]
Yu, Jaejun [1 ]
Kuk, Young [1 ,2 ]
机构：
[1] Seoul Natl Univ, Dept Phys & Astron, Seoul 08826, South Korea
[2] Inst for Basic Sci Korea, Ctr Quantum Nanosci, Seoul 03760, South Korea
[3] Ewha Womans Univ, Dept Phys, Seoul 03760, South Korea
来源：
SURFACE SCIENCE | 2019年 / 685卷
基金：
新加坡国家研究基金会;
关键词：
Selenium film; Quantum bound states; Surface state; METAL;
D O I：
10.1016/j.susc.2019.03.002
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：
We studied the geometric and local electronic structure of a Se-adsorbed Au(111) surface. The reconstructed herringbone structure disappeared and the Au(111) surface states were attenuated with Se adsorption on the Au (111) surface, as explained by density functional theory calculations. Electron interference patterns were observed on the exposed Au (111) surface due to electron scattering by potential barriers formed by Se adsorbates. A strong bound state from the Se p-orbital on top of the Se clusters with quantum confinement effects were observed using scanning tunneling microscopy and spectroscopy.
引用
收藏
页码：19 / 23
页数：5
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