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:
-
- 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}
}