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 Scopus citations

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 1 2006

Keywords

  • Electron energy loss spectroscopy
  • TeO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Instrumentation

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