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 Citations (Scopus)

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 2008

Fingerprint

Crystal atomic structure
Multiple scattering
atomic structure
Stoichiometry
Electronic structure
Glass
Absorption spectra
Spectrum Analysis
Observation
Spectroscopy
electronic structure
Crystals
glass
angular correlation
stoichiometry
absorption spectra
probes
scattering
spectroscopy
crystals

Keywords

  • EELS
  • Glass
  • Long-range order

ASJC Scopus subject areas

  • Cell Biology
  • Materials Science(all)
  • Instrumentation
  • Biotechnology

Cite this

Observation of long-range compositional fluctuations in glasses : Implications for atomic and electronic structure. / Jiang, Nan; Qiu, Jianrong; Humphreys, C. J.; Spence, John.

In: Micron, Vol. 39, No. 6, 08.2008, p. 698-702.

Research output: Contribution to journalArticle

Jiang, Nan ; Qiu, Jianrong ; Humphreys, C. J. ; Spence, John. / Observation of long-range compositional fluctuations in glasses : Implications for atomic and electronic structure. In: Micron. 2008 ; Vol. 39, No. 6. pp. 698-702.
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