Dynamic Core-Hole Screening Effects in the C(KVV) Auger Lineshape of Graphite.

Abstract

Evidence is presented for the presence of a 'shakedown' satellite near threshold in the C(KVV) Auger spectrum of graphite. Its origin is shown to be an electron in a relatively long-lived valence/core excitonic level (populated as a result of dynamic core-hole screening) which participates in the Auger decay. Modeling the shakedown contribution considerably improves agreement in the threshold region between the experimental lineshape and a simple one-electron model. Keywords: Auger Spectroscopy, Graphite, Dynamic screening, and Shakeup.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1985
Accession Number
ADA162046

Entities

People

  • David E. Ramaker
  • F. L. Hutson
  • J. E. Houston
  • J. W. Rogers
  • R. R. Rye

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  • George Washington University

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  • Physics

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