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Title: Contribution of charge-transfer processes to ion-induced electron emission

Abstract

Charge changing events of ions moving inside metals are shown to contribute significantly to electron emission in the intermediate velocity regime via electrons coming from projectile ionization. Inclusion of equilibrium charge state fractions, together with two-electron Auger processes and resonant-coherent electron loss from the projectile, results in reasonable agreement with previous calculations for frozen protons, though a significant part of the emission is now interpreted in terms of charge exchange. The quantal character of the surface barrier transmission is shown to play an important role. The theory compares well with experimental observations for {ital H} projectiles. {copyright} {ital 1996 The American Physical Society.}

Authors:
 [1];  [2]
  1. Departamento de Fisica de Materiales, Facultad de Quimica, UPV/EHU, Apartado 1072, 20080 San Sebastian (Spain)
  2. Departamento de Ciencias de la Computacion e Inteligencia Artificial, Facultad de Informatica, UPV/EHU, Apartado 649, 20080 San Sebastian (Spain)
Publication Date:
OSTI Identifier:
404043
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review, B: Condensed Matter; Journal Volume: 54; Journal Issue: 23; Other Information: PBD: Dec 1996
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; METALS; ION COLLISIONS; ELECTRON EMISSION; SECONDARY EMISSION; CHARGE EXCHANGE; ELECTRON CAPTURE; ENERGY LOSSES; AUGER EFFECT; MANY-BODY PROBLEM; DIELECTRIC FUNCTION

Citation Formats

Roesler, M., and Garcia de Abajo, F.J.. Contribution of charge-transfer processes to ion-induced electron emission. United States: N. p., 1996. Web. doi:10.1103/PhysRevB.54.17158.
Roesler, M., & Garcia de Abajo, F.J.. Contribution of charge-transfer processes to ion-induced electron emission. United States. doi:10.1103/PhysRevB.54.17158.
Roesler, M., and Garcia de Abajo, F.J.. Sun . "Contribution of charge-transfer processes to ion-induced electron emission". United States. doi:10.1103/PhysRevB.54.17158.
@article{osti_404043,
title = {Contribution of charge-transfer processes to ion-induced electron emission},
author = {Roesler, M. and Garcia de Abajo, F.J.},
abstractNote = {Charge changing events of ions moving inside metals are shown to contribute significantly to electron emission in the intermediate velocity regime via electrons coming from projectile ionization. Inclusion of equilibrium charge state fractions, together with two-electron Auger processes and resonant-coherent electron loss from the projectile, results in reasonable agreement with previous calculations for frozen protons, though a significant part of the emission is now interpreted in terms of charge exchange. The quantal character of the surface barrier transmission is shown to play an important role. The theory compares well with experimental observations for {ital H} projectiles. {copyright} {ital 1996 The American Physical Society.}},
doi = {10.1103/PhysRevB.54.17158},
journal = {Physical Review, B: Condensed Matter},
number = 23,
volume = 54,
place = {United States},
year = {Sun Dec 01 00:00:00 EST 1996},
month = {Sun Dec 01 00:00:00 EST 1996}
}