Angle-resolved Auger-photoelectron coincidence spectroscopy (AR-APECS) of the Ge(100) surface

G. Stefani, Robert Bartynski, R. Gotter, A. Ruocco, M. T. Butterfield, S. Iacobucci

Research output: Contribution to journalArticle


We have measured the angular distribution of Ge (formula presented) Auger electrons in coincidence with Ge (formula presented) core photoelectrons along the (001) azimuth of the Ge(100) surface. Intensity modulations arising from diffraction effects are suppressed in the coincidence Auger angular distribution and, when specific emission angles of the photoelectrons are considered, new features appear. We attribute the former effect to enhanced surface specificity of the coincidence technique and the latter to sensitivity of the coincidence measurement to alignment of the core hole state.

Original languageEnglish (US)
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number3
StatePublished - Jan 1 2003
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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