Resonances induced by Cs adsorbates on Cu(100): Localization of image potential states

被引：29
作者：
Borisov, AG
Kazansky, AK
Gauyacq, JP
机构：
[1] Univ Paris 11, Collis Atom & Mol Lab, CNRS, UMR 8625, F-91405 Orsay, France
[2] St Petersburg State Univ, Fock Inst Phys, St Petersburg 198504, Russia
来源：
PHYSICAL REVIEW B | 2002年 / 65卷 / 20期
关键词：
D O I：
10.1103/PhysRevB.65.205414
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The modifications of the electronic states located in the surface region induced by a Cs adsorbate on a Cu(100) surface are studied using a wave-packet propagation method. Several states localized around the adsorbate are found and can be sorted in two categories: (i) states corresponding to strongly distorted atomic levels and (ii) states with an energy slightly below the image state continuum band bottoms. The latter are attributed to localization inside the two-dimensional image state continua induced by the short-range adsorbate potential. The possibility of observing these states by photoemission is discussed.
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页码：1 / 7
页数：7
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