Inverse photoemission spectroscopy of Al(100)

J. F. Veyan, W. Ibañez, R. A. Bartynski, P. Vargas, P. Häberle

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Abstract

We present results from k -resolved inverse photoemission spectroscopy (IPS) in the isochromat mode from the Al(100) surface. To identify the origin of the different peaks in the photon intensity we have performed a first principles calculation of the bulk band structure in the LMTO formalism and apply it to predict bulk derived features in the IPS spectra. We have been able to identify several of the experimental features as derived from bulk optical transitions together with various surface resonances. A particular surface state detected along the Γ̄ X̄ direction displays the opening of a gap at the zone boundary. Most of the dominant surface features could be traced back to the occupied surface state at Γ̄, previously detected by photoemission. © 2005 The American Physical Society.
Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
DOIs
Publication statusPublished - 15 Dec 2005

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