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Title: Dimer charge asymmetry determined by photoemission from epitaxial Ge on Si(100)-(2 times 1)

Abstract

The charge asymmetry between the up and down atoms of an asymmetric dimer on Si(100)-(2{times}1) or Ge(100)-(2{times}1) is tied to the core-level energy splitting. Previous studies of the surface components in the core-level photoemission spectra disagreed on the assignments of the atomic origins, resulting in a disagreement on the charge asymmetry. The present core-level study of the growth of Ge on Si(100) shows clearly that the dimers are essentially covalent.

Authors:
; ;  [1]
  1. Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois (USA) Materials Research Laboratory, University of Illinois at Urbana-Champaign, 104 South Goodwin Avenue, Urbana, Illinois (USA)
Publication Date:
OSTI Identifier:
5189516
DOE Contract Number:  
FG02-91ER45439
Resource Type:
Journal Article
Journal Name:
Physical Review Letters; (United States)
Additional Journal Information:
Journal Volume: 67:16; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; GERMANIUM; SURFACE PROPERTIES; ASYMMETRY; CHARGE DISTRIBUTION; DIMERIZATION; EPITAXY; PHOTOEMISSION; SILICON; CHEMICAL REACTIONS; ELEMENTS; EMISSION; METALS; POLYMERIZATION; SECONDARY EMISSION; SEMIMETALS; 360603* - Materials- Properties

Citation Formats

Lin, D, Miller, T, and Chiang, T. Dimer charge asymmetry determined by photoemission from epitaxial Ge on Si(100)-(2 times 1). United States: N. p., 1991. Web. doi:10.1103/PhysRevLett.67.2187.
Lin, D, Miller, T, & Chiang, T. Dimer charge asymmetry determined by photoemission from epitaxial Ge on Si(100)-(2 times 1). United States. https://doi.org/10.1103/PhysRevLett.67.2187
Lin, D, Miller, T, and Chiang, T. Mon . "Dimer charge asymmetry determined by photoemission from epitaxial Ge on Si(100)-(2 times 1)". United States. https://doi.org/10.1103/PhysRevLett.67.2187.
@article{osti_5189516,
title = {Dimer charge asymmetry determined by photoemission from epitaxial Ge on Si(100)-(2 times 1)},
author = {Lin, D and Miller, T and Chiang, T},
abstractNote = {The charge asymmetry between the up and down atoms of an asymmetric dimer on Si(100)-(2{times}1) or Ge(100)-(2{times}1) is tied to the core-level energy splitting. Previous studies of the surface components in the core-level photoemission spectra disagreed on the assignments of the atomic origins, resulting in a disagreement on the charge asymmetry. The present core-level study of the growth of Ge on Si(100) shows clearly that the dimers are essentially covalent.},
doi = {10.1103/PhysRevLett.67.2187},
url = {https://www.osti.gov/biblio/5189516}, journal = {Physical Review Letters; (United States)},
issn = {0031-9007},
number = ,
volume = 67:16,
place = {United States},
year = {1991},
month = {10}
}