The effect of a band edge of surface electronic states on charge exchange in atom-surface collisions

Autor:	Sergey V. Sharov, M. Yu. Gusev, D. V. Klushin, I.F. Urazgil'din
Rok vydání:	1997
Předmět:	Band gap Chemistry Charge (physics) Surfaces and Interfaces Electronic structure Condensed Matter Physics Semimetal Surfaces Coatings and Films Band bending Atom Materials Chemistry Atomic physics Electronic band structure Surface states
Zdroj:	Surface Science. 374:454-460
ISSN:	0039-6028
DOI:	10.1016/s0039-6028(96)01188-0
Popis:	Within the framework of a time-dependent Anderson-Newns model, charge exchange between an atomic particle and a surface with a finite band of electronic states is considered. Asymptotically exact solutions of the model for different time dependences of hopping matrix elements between the atomic and band states are derived. It is shown that for a finite energy band, the resulting charge state of the atomic particle can be a non-monotonic function of its energy only when the time dependence of the coupling has an adiabatically part.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::33fc82fe5afd1cfaca6eb81675636575 https://doi.org/10.1016/s0039-6028(96)01188-0 Zobrazit plný text záznamu Full Text from ScienceDirect