Three-photon photoemission from Cu(100): observation of an unoccupied surface state near \ ̄gG

Paul G. Strupp, Peter C. Stair, Eric Weitz

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The photon energy dependence has been measured for three-photon photoemission from Cu(100). A narrow resonance (FWHM = 0.02 eV) was observed centered at 2.02 eV photon energy. The resonance can be explained by the presence of an unoccupied surface state near the center of the surface Brillouin zone at \ ̄gG and 2.0 eV above EF.

Original languageEnglish
Pages (from-to)L699-L702
JournalSurface Science
Issue number3
Publication statusPublished - Jun 20 1993


ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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