Interference effects in electron capture from insulator surfaces

We investigate the electron capture from insulator surfaces under grazing impact conditions. The eikonal-impulse approximation is used to describe coherent electron exchange from surface ions. In the model the transition amplitude is expressed as the sum of atomic transition amplitudes, each one ass...

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Autores principales: Gravielle, M.S., Miraglia, J.E.
Formato: JOUR
Materias:
Atomic transition
Crystal foils
Electron capture
Insulator surfaces
Eigenvalues and eigenfunctions
Electrons
Ionization
Probability
Protons
Spectrum analysis
Trajectories
Surfaces
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_10502947_v71_n3_p_Gravielle
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_10502947_v71_n3_p_Gravielle2023-10-03T15:59:42Z Interference effects in electron capture from insulator surfaces Gravielle, M.S. Miraglia, J.E. Atomic transition Crystal foils Electron capture Insulator surfaces Eigenvalues and eigenfunctions Electrons Ionization Probability Protons Spectrum analysis Trajectories Surfaces We investigate the electron capture from insulator surfaces under grazing impact conditions. The eikonal-impulse approximation is used to describe coherent electron exchange from surface ions. In the model the transition amplitude is expressed as the sum of atomic transition amplitudes, each one associated with capture from a different lattice site. The method is applied to 100 keV protons colliding on LiF surfaces. Strong interference effects as a function of the crystal orientation were found for the partial capture from a given initial crystal state. However, these interference structures disappear when the contributions from different crystal states add up to obtain the total capture probability from the surface band. © 2005 The American Physical Society. Fil:Gravielle, M.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Miraglia, J.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10502947_v71_n3_p_Gravielle
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Atomic transition
Crystal foils
Electron capture
Insulator surfaces
Eigenvalues and eigenfunctions
Electrons
Ionization
Probability
Protons
Spectrum analysis
Trajectories
Surfaces
spellingShingle Atomic transition
Crystal foils
Electron capture
Insulator surfaces
Eigenvalues and eigenfunctions
Electrons
Ionization
Probability
Protons
Spectrum analysis
Trajectories
Surfaces
Gravielle, M.S.
Miraglia, J.E.
Interference effects in electron capture from insulator surfaces
topic_facet Atomic transition
Crystal foils
Electron capture
Insulator surfaces
Eigenvalues and eigenfunctions
Electrons
Ionization
Probability
Protons
Spectrum analysis
Trajectories
Surfaces
description We investigate the electron capture from insulator surfaces under grazing impact conditions. The eikonal-impulse approximation is used to describe coherent electron exchange from surface ions. In the model the transition amplitude is expressed as the sum of atomic transition amplitudes, each one associated with capture from a different lattice site. The method is applied to 100 keV protons colliding on LiF surfaces. Strong interference effects as a function of the crystal orientation were found for the partial capture from a given initial crystal state. However, these interference structures disappear when the contributions from different crystal states add up to obtain the total capture probability from the surface band. © 2005 The American Physical Society.
format JOUR
author Gravielle, M.S.
Miraglia, J.E.
author_facet Gravielle, M.S.
Miraglia, J.E.
author_sort Gravielle, M.S.
title Interference effects in electron capture from insulator surfaces
title_short Interference effects in electron capture from insulator surfaces
title_full Interference effects in electron capture from insulator surfaces
title_fullStr Interference effects in electron capture from insulator surfaces
title_full_unstemmed Interference effects in electron capture from insulator surfaces
title_sort interference effects in electron capture from insulator surfaces
url http://hdl.handle.net/20.500.12110/paper_10502947_v71_n3_p_Gravielle
work_keys_str_mv AT graviellems interferenceeffectsinelectroncapturefrominsulatorsurfaces
AT miragliaje interferenceeffectsinelectroncapturefrominsulatorsurfaces
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