Observation of long-range compositional fluctuations in glasses: Implications for atomic and electronic structure

Nan Jiang, Jianrong Qiu, C. J. Humphreys, John Spence

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Experimental evidence for long-range compositional fluctuations in glasses is given. The implications for electronic structure and stoichiometry-induced structural variations are analyzed. These fluctuations were discovered by examining the spatial dependence of inner shell near-edge absorption spectra obtained using a 50 nm diameter probe. This spectroscopy is sensitive to both angular and distance correlations in bonding. Comparisons with spectra from compositionally equivalent crystals, and multiple-scattering calculations which include core-hole effects are used to analyze the data.

Original languageEnglish (US)
Pages (from-to)698-702
Number of pages5
JournalMicron
Volume39
Issue number6
DOIs
StatePublished - Aug 1 2008

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Keywords

  • EELS
  • Glass
  • Long-range order

ASJC Scopus subject areas

  • Structural Biology
  • Materials Science(all)
  • Physics and Astronomy(all)
  • Cell Biology

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