Reflection electron energy-loss spectroscopy studies of Ca segregation on MgO (100) surfaces

Peter Crozier, M. Gajdardziska-Josifovska

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The technique of reflection electron energy-loss spectroscopy (REELS) in the electron microscope is applied to the study of oxygen-annealed (100) surfaces of MgO. It is shown that REELS can detect the Ca layer that forms on the surface during annealing. High-spatial-resolution surface analysis indicates that Ca preferentially segregates to surface steps and is associated with decoration material at the steps, which has been reported in earlier studies. The presence of a Ca marker layer on the annealed MgO surface provides a suitable test sample for investigating the influence of surface resonance diffracting conditions on the reflection spectra.

Original languageEnglish (US)
Pages (from-to)63-76
Number of pages14
JournalUltramicroscopy
Volume48
Issue number1-2
DOIs
StatePublished - Jan 1993

ASJC Scopus subject areas

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

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