Charge fluctuations and image potential at oxide-metal interfaces

S Altieri, L H Tjeng, F C Voogt, T Hibma, O Rogojanu, G A Sawatzky

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24 Citations (Scopus)

Abstract

We analyze the dynamical response of the Ag metal surface to electronic excitations in a MgO(100)/Ag(100) oxide-metal interface system. Intrinsic and extrinsic surface plasmon excitations are discussed in relation to mutual interactions between the oxide and the metal. A direct relationship is established between the reduction of charge fluctuation energies in the MgO(100) layers and the image charge screening by the Ag(100) metal surface.

Original languageEnglish
Article number155432
Number of pages6
JournalPhysical Review B
Volume66
Issue number15
DOIs
Publication statusPublished - 15-Oct-2002

Keywords

  • X-RAY PHOTOEMISSION
  • ENERGY-LOSS-SPECTROSCOPY
  • ATOMIC AUGER-SPECTRA
  • NARROW-BAND METALS
  • ELECTRONIC-STRUCTURE
  • SURFACE-STATES
  • POINT-DEFECTS
  • SOLIDS
  • FILMS
  • PLASMON

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