Dynamic screening of the core exciton by swift electrons in electron-energy-loss scattering

P. E. Batson, J. Bruley

Research output: Contribution to journalArticle

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Abstract

We show for the first time that electron-energy-loss measurements of atomic absorption are different from the soft-x-ray photoyield data in the region influenced by the core exciton. We suggest that the core-exciton envelope function is influenced by the swift electron and its associated charge-density wake. Solving Schrödingers equation for a model transition potential including the swift electron, we find that the observed differences for SiOx, diamond, and Si can be reproduced. Spectra from aluminum are included as a comparison when the exciton is absent.

Original languageEnglish (US)
Pages (from-to)350-353
Number of pages4
JournalPhysical review letters
Volume67
Issue number3
DOIs
StatePublished - Jan 1 1991
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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