Effect of an Adsorbed Atom on Resonant Charge Exchange in Atom Scattering on Metal Surfaces

• Authors: R. Taranko , E. Taranko , M. Wiertel
• Languages of publication: EN

Abstracts

EN

A simple model describing resonant charge transfer between the free-electron metal surface and an atom colliding with it at some distance from another adsorbed atom is presented. The negative ionization probability of a scattered atom is studied within the time-dependent Anderson-Newns model and the time-evolution operator approach. With appropriate models for the considered system, the ionization probability is shown to oscillate with the distance between the adsorbed atom and the collision point of the scattered atom with the metal surface. These oscillations are results of the indirect interaction between the adsorbed and the scattered atoms due to the coupling of both atoms with the metal energy band.

Keywords

EN

79.20.-m; 82.65.+r; 34.70.+e

Discipline

• 79.20.-m: Impact phenomena (including electron spectra and sputtering)
• 82.65.+r: Surface and interface chemistry; heterogeneous catalysis at surfaces(for temporal and spatial patterns in surface reactions, see 82.40.Np; see also 82.45.Jn Surface structure, reactivity and catalysis in electrochemistry; see also 68.43.-h Chemisorption/physisorption: adsorbates on surfaces)
• 34.70.+e: Charge transfer(for charge transfer in biological systems, see 82.39.Jn in physical chemistry)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2003
• Volume: 103
• Issue: 5
• Pages: 483-497

Dates

published

2003-05

received

2003-02-17

revised

2003-04-16

Contributors

author

R. Taranko

• Institute of Physics, M. Curie-Skłodowska University, pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland

author

E. Taranko

• Institute of Physics, M. Curie-Skłodowska University, pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland

author

M. Wiertel

• Institute of Physics, M. Curie-Skłodowska University, pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland

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Identifiers

DOI

10.12693/APhysPolA.103.483