Step-induced one-dimensional surface state on Cu(332)

Felix Baumberger, T Greber, J Osterwalder

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

Abstract

The Shockley (L gap) surface state on Cu(332) has been studied by angle scanned ultraviolet photoelectron spectroscopy. The Fermi surface indicates a two-dimensional (2D) and a one-dimensional (1D) state, both propagating freely parallel to the steps. Normal to the steps, the 2D state is slightly confined while the 1D stare is localized. The 1D state can be rationalized either by disorder in the one-dimensional step lattice or by surface-bulk coupling at the individual steps. In both scenarios this 1D state represents an important link between scanning tunneling microscopy/spectroscopy and photoemission data.

Original languageEnglish
Pages (from-to)15431-15434
JournalPhysical Review. B, Condensed matter and materials physics
Volume62
Issue number23
DOIs
Publication statusPublished - 15 Dec 2000

Keywords

  • SCANNING-TUNNELING-MICROSCOPE
  • METAL-SURFACES
  • CONFINEMENT
  • ELECTRONS
  • AG(111)
  • STM

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