Axial grazing collisions with insulator surfaces

Electron capture and emission processes from insulator surfaces produced by grazing impact of fast ions are investigated under axial incidence conditions. For crystal surfaces we develop a model based on distorted wave methods, which allows us to express the coherent transition amplitude along the p...

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Detalles Bibliográficos
Autores principales: Gravielle, M.S., Miraglia, J.E.
Formato: JOUR
Materias:
Channeling
Collision
Interference
Ion
Surface
Crystal orientation
Electron emission
Ion bombardment
Probability
Surface phenomena
Crystal states
Interference effects
Lattice sites
Insulating materials
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_0168583X_v258_n1_p21_Gravielle
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_0168583X_v258_n1_p21_Gravielle
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spelling todo:paper_0168583X_v258_n1_p21_Gravielle2023-10-03T15:06:28Z Axial grazing collisions with insulator surfaces Gravielle, M.S. Miraglia, J.E. Channeling Collision Interference Ion Surface Crystal orientation Electron emission Ion bombardment Probability Surface phenomena Collision Crystal states Interference effects Lattice sites Insulating materials Electron capture and emission processes from insulator surfaces produced by grazing impact of fast ions are investigated under axial incidence conditions. For crystal surfaces we develop a model based on distorted wave methods, which allows us to express the coherent transition amplitude along the projectile path as a sum of atomic amplitudes, each one associated with a different lattice site. The method is applied to 100 keV protons colliding with LiF surfaces. For electron transitions from a given initial crystal state, the probabilities display strong interference effects as a function of the crystal orientation. But the interference patterns disappear when these partial probabilities are added to derive the total probability from the surface band. © 2006 Elsevier B.V. All rights reserved. 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_0168583X_v258_n1_p21_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 Channeling
Collision
Interference
Ion
Surface
Crystal orientation
Electron emission
Ion bombardment
Probability
Surface phenomena
Collision
Crystal states
Interference effects
Lattice sites
Insulating materials
spellingShingle Channeling
Collision
Interference
Ion
Surface
Crystal orientation
Electron emission
Ion bombardment
Probability
Surface phenomena
Collision
Crystal states
Interference effects
Lattice sites
Insulating materials
Gravielle, M.S.
Miraglia, J.E.
Axial grazing collisions with insulator surfaces
topic_facet Channeling
Collision
Interference
Ion
Surface
Crystal orientation
Electron emission
Ion bombardment
Probability
Surface phenomena
Collision
Crystal states
Interference effects
Lattice sites
Insulating materials
description Electron capture and emission processes from insulator surfaces produced by grazing impact of fast ions are investigated under axial incidence conditions. For crystal surfaces we develop a model based on distorted wave methods, which allows us to express the coherent transition amplitude along the projectile path as a sum of atomic amplitudes, each one associated with a different lattice site. The method is applied to 100 keV protons colliding with LiF surfaces. For electron transitions from a given initial crystal state, the probabilities display strong interference effects as a function of the crystal orientation. But the interference patterns disappear when these partial probabilities are added to derive the total probability from the surface band. © 2006 Elsevier B.V. All rights reserved.
format JOUR
author Gravielle, M.S.
Miraglia, J.E.
author_facet Gravielle, M.S.
Miraglia, J.E.
author_sort Gravielle, M.S.
title Axial grazing collisions with insulator surfaces
title_short Axial grazing collisions with insulator surfaces
title_full Axial grazing collisions with insulator surfaces
title_fullStr Axial grazing collisions with insulator surfaces
title_full_unstemmed Axial grazing collisions with insulator surfaces
title_sort axial grazing collisions with insulator surfaces
url http://hdl.handle.net/20.500.12110/paper_0168583X_v258_n1_p21_Gravielle
work_keys_str_mv AT graviellems axialgrazingcollisionswithinsulatorsurfaces
AT miragliaje axialgrazingcollisionswithinsulatorsurfaces
_version_ 1807321347813015552

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