Calculated surface, image and quantum well states in Ag/Cu(111) system

被引:3
作者
Bejan, Doina [1 ]
机构
[1] Univ Bucharest, Fac Phys, Dept Opt, Bucharest, Romania
关键词
Surface state; Image state; Quantum well state; Model calculations; Discrete variable representation; METAL-SURFACES; RESOLVED PHOTOEMISSION; CU(111); AG; SPECTROSCOPY; OVERLAYERS; RESONANCES; SCATTERING; CHARGE; NA;
D O I
10.1016/j.physb.2013.04.042
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The energy spectrum and the probability densities of the surface, the image and the quantum well (QW) states of the Ag/Cu(111) system have been calculated function of the thickness of the silver film. The layer by layer energy spectrum and probability densities of this system are obtained as a solution of the Schrodinger equation using the discrete variable representation (DVR). In this equation we have used an analytical one-dimensional model potential derived from the potential of Chulkov et al. W. Our calculated energy spectrum and probability densities of the surface, image and QW states present coverage dependence in agreement with the experiments and other calculations of the surface states. (C) 2013 Elsevier BY. All rights reserved.
引用
收藏
页码:32 / 38
页数:7
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