Charge Transfer Dynamics in Atom-Metal Surface Collisions

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

Abstracts

EN

We study the charge exchange in atom-metal collisions in the framework of the generalized time-dependent Anderson-Newns model. The electron correlations and correlated hopping are treated within the mean-field approximation. The resulting one-particle model with an effective spin-dependent atom-surface coupling is used to study the charge transfer in scattering of Na and Li atoms on metal surfaces. It is shown that the effective occupation dependent atom-surface coupling influences mainly the expectation values for producing positive, neutral, and negative particles for small work functions and high atom velocities. It is also shown that the temperature dependence of these expectation values is more visible, especially for magnetic solutions.

Keywords

EN

79.20.Rf; 78.70.-g; 82.65.Pa

Discipline

• 78.70.-g: Interactions of particles and radiation with matter
• 79.20.Rf: Atomic, molecular, and ion beam impact and interactions with surfaces(for atomic and molecular beam techniques, see 37.20.+j; see also 34.35.+a Interactions of atoms and molecules with surfaces)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1999
• Volume: 96
• Issue: 6
• Pages: 769-783

Dates

published

1999-12

received

1999-08-17

Contributors

author

M. Wiertel

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

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

Identifiers

DOI

10.12693/APhysPolA.96.769