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Title: Predominance of multielectron processes contributing to the intrinsic spectra of low-energy Auger transitions in copper and gold

Abstract

Positron-annihilation-induced Auger electron spectroscopy (PAES) was used to obtain Cu and Au Auger spectra that are free of primary-beam-induced backgrounds by impinging the positrons at an energy below the secondary-electron-emission threshold. The removal of the core electron via annihilation in the PAES process resulted in the elimination of postcollision effects. The spectra indicate that there is an intense low-energy tail (LET) associated with the Auger peak that extends all the way to 0 eV. The LET is interpreted as indicative of processes in which filling of the core hole by a valence electron results in the ejection of two or more valence electrons which share the energy of the conventional core-valence-valence Auger electron.

Authors:
; ;  [1]
  1. Department of Physics, University of Texas at Arlington, Arlington, Texas 76019 (United States)
Publication Date:
OSTI Identifier:
21596899
Resource Type:
Journal Article
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 84; Journal Issue: 15; Other Information: DOI: 10.1103/PhysRevB.84.155109; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1098-0121
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANNIHILATION; AUGER ELECTRON SPECTROSCOPY; COPPER; ELECTRON EMISSION; ELECTRONS; GOLD; POSITRONS; SPECTRA; VALENCE; ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; ELECTRON SPECTROSCOPY; ELEMENTARY PARTICLES; ELEMENTS; EMISSION; FERMIONS; INTERACTIONS; LEPTONS; MATTER; METALS; PARTICLE INTERACTIONS; SPECTROSCOPY; TRANSITION ELEMENTS

Citation Formats

Mukherjee, S F, Shastry, K, and Weiss, A H. Predominance of multielectron processes contributing to the intrinsic spectra of low-energy Auger transitions in copper and gold. United States: N. p., 2011. Web. doi:10.1103/PHYSREVB.84.155109.
Mukherjee, S F, Shastry, K, & Weiss, A H. Predominance of multielectron processes contributing to the intrinsic spectra of low-energy Auger transitions in copper and gold. United States. https://doi.org/10.1103/PHYSREVB.84.155109
Mukherjee, S F, Shastry, K, and Weiss, A H. 2011. "Predominance of multielectron processes contributing to the intrinsic spectra of low-energy Auger transitions in copper and gold". United States. https://doi.org/10.1103/PHYSREVB.84.155109.
@article{osti_21596899,
title = {Predominance of multielectron processes contributing to the intrinsic spectra of low-energy Auger transitions in copper and gold},
author = {Mukherjee, S F and Shastry, K and Weiss, A H},
abstractNote = {Positron-annihilation-induced Auger electron spectroscopy (PAES) was used to obtain Cu and Au Auger spectra that are free of primary-beam-induced backgrounds by impinging the positrons at an energy below the secondary-electron-emission threshold. The removal of the core electron via annihilation in the PAES process resulted in the elimination of postcollision effects. The spectra indicate that there is an intense low-energy tail (LET) associated with the Auger peak that extends all the way to 0 eV. The LET is interpreted as indicative of processes in which filling of the core hole by a valence electron results in the ejection of two or more valence electrons which share the energy of the conventional core-valence-valence Auger electron.},
doi = {10.1103/PHYSREVB.84.155109},
url = {https://www.osti.gov/biblio/21596899}, journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {1098-0121},
number = 15,
volume = 84,
place = {United States},
year = {Sat Oct 15 00:00:00 EDT 2011},
month = {Sat Oct 15 00:00:00 EDT 2011}
}