Experimental and theoretical improvements on understanding of the O K-edge of TeO2

Nan Jiang, Bin Jiang, Rolf Erni, Nigel D. Browning, John Spence

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Using an electron monochromator attached to an electron microscope, high energy-resolution electron energy-loss spectra collected from TeO2 have revealed new features in the Oxygen K-edge. Using density-functional theory in the local density and the generalized gradient approximation, we find that core-hole strength of 1.3 gives an excellent fit to our high-resolution experimental data. This indicates that screening is not weak in this oxide, as normally assumed, and that neither the ground state nor a full core-hole model is adequate in quantitative reproduction of the O K-edge in the TeO2 system.

Original languageEnglish (US)
Pages (from-to)123-129
Number of pages7
JournalUltramicroscopy
Volume106
Issue number2
DOIs
StatePublished - Jan 2006

Fingerprint

Monochromators
Electrons
monochromators
Oxides
Ground state
Density functional theory
Energy dissipation
Screening
Electron microscopes
screening
electron microscopes
energy dissipation
electron energy
Oxygen
density functional theory
gradients
ground state
oxides
high resolution
oxygen

Keywords

  • Electron energy loss spectroscopy
  • TeO

ASJC Scopus subject areas

  • Materials Science(all)
  • Instrumentation

Cite this

Experimental and theoretical improvements on understanding of the O K-edge of TeO2 . / Jiang, Nan; Jiang, Bin; Erni, Rolf; Browning, Nigel D.; Spence, John.

In: Ultramicroscopy, Vol. 106, No. 2, 01.2006, p. 123-129.

Research output: Contribution to journalArticle

Jiang, Nan ; Jiang, Bin ; Erni, Rolf ; Browning, Nigel D. ; Spence, John. / Experimental and theoretical improvements on understanding of the O K-edge of TeO2 In: Ultramicroscopy. 2006 ; Vol. 106, No. 2. pp. 123-129.
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