A comparative study of threshold effects in the energy loss moments of protons, electrons and positrons using dielectric models for band-gap materials

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A comparative study of the energy loss, mean free path and straggling of protons, positrons and electrons in an electron gas is performed using three dielectric models which represent the case of metals (Lindhard model for a free electron gas) and the cases of semiconductors and insulators (Levine a...

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Autores principales: Archubi, C.D., Arista, N.R.
Formato: JOUR
Materias:
Solid State and Materials
Dielectric materials
Electron gas
Energy dissipation
Energy gap
Positrons
Analytical expressions
Comparative studies
Dielectric models
High-energy limit
Incident particles
Indistinguishability
Pole approximation
Electrons
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_14346028_v90_n1_p_Archubi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_14346028_v90_n1_p_Archubi
record_format dspace
spelling todo:paper_14346028_v90_n1_p_Archubi2023-10-03T16:14:35Z A comparative study of threshold effects in the energy loss moments of protons, electrons and positrons using dielectric models for band-gap materials Archubi, C.D. Arista, N.R. Solid State and Materials Dielectric materials Electron gas Energy dissipation Energy gap Positrons Analytical expressions Comparative studies Dielectric models High-energy limit Incident particles Indistinguishability Pole approximation Solid State and Materials Electrons A comparative study of the energy loss, mean free path and straggling of protons, positrons and electrons in an electron gas is performed using three dielectric models which represent the case of metals (Lindhard model for a free electron gas) and the cases of semiconductors and insulators (Levine and Louie model and Brandt and Reinheimer model for systems with a band gap). The properties of individual and collective contributions according to each model and for each of the particles are analyzed. In particular, the effects produced by the band gap of the material and by the properties of the incident particle are analyzed in detail. Significant differences related to the mass and to the indistinguishability (in the case of electrons) are described. Analytical expressions for the high-energy limit are derived in a simple way using the plasmon-pole approximation. © 2017, EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_14346028_v90_n1_p_Archubi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Solid State and Materials
Dielectric materials
Electron gas
Energy dissipation
Energy gap
Positrons
Analytical expressions
Comparative studies
Dielectric models
High-energy limit
Incident particles
Indistinguishability
Pole approximation
Solid State and Materials
Electrons
spellingShingle Solid State and Materials
Dielectric materials
Electron gas
Energy dissipation
Energy gap
Positrons
Analytical expressions
Comparative studies
Dielectric models
High-energy limit
Incident particles
Indistinguishability
Pole approximation
Solid State and Materials
Electrons
Archubi, C.D.
Arista, N.R.
A comparative study of threshold effects in the energy loss moments of protons, electrons and positrons using dielectric models for band-gap materials
topic_facet Solid State and Materials
Dielectric materials
Electron gas
Energy dissipation
Energy gap
Positrons
Analytical expressions
Comparative studies
Dielectric models
High-energy limit
Incident particles
Indistinguishability
Pole approximation
Solid State and Materials
Electrons
description A comparative study of the energy loss, mean free path and straggling of protons, positrons and electrons in an electron gas is performed using three dielectric models which represent the case of metals (Lindhard model for a free electron gas) and the cases of semiconductors and insulators (Levine and Louie model and Brandt and Reinheimer model for systems with a band gap). The properties of individual and collective contributions according to each model and for each of the particles are analyzed. In particular, the effects produced by the band gap of the material and by the properties of the incident particle are analyzed in detail. Significant differences related to the mass and to the indistinguishability (in the case of electrons) are described. Analytical expressions for the high-energy limit are derived in a simple way using the plasmon-pole approximation. © 2017, EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg.
format JOUR
author Archubi, C.D.
Arista, N.R.
author_facet Archubi, C.D.
Arista, N.R.
author_sort Archubi, C.D.
title A comparative study of threshold effects in the energy loss moments of protons, electrons and positrons using dielectric models for band-gap materials
title_short A comparative study of threshold effects in the energy loss moments of protons, electrons and positrons using dielectric models for band-gap materials
title_full A comparative study of threshold effects in the energy loss moments of protons, electrons and positrons using dielectric models for band-gap materials
title_fullStr A comparative study of threshold effects in the energy loss moments of protons, electrons and positrons using dielectric models for band-gap materials
title_full_unstemmed A comparative study of threshold effects in the energy loss moments of protons, electrons and positrons using dielectric models for band-gap materials
title_sort comparative study of threshold effects in the energy loss moments of protons, electrons and positrons using dielectric models for band-gap materials
url http://hdl.handle.net/20.500.12110/paper_14346028_v90_n1_p_Archubi
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AT archubicd comparativestudyofthresholdeffectsintheenergylossmomentsofprotonselectronsandpositronsusingdielectricmodelsforbandgapmaterials
AT aristanr comparativestudyofthresholdeffectsintheenergylossmomentsofprotonselectronsandpositronsusingdielectricmodelsforbandgapmaterials
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