Quantum coherence of image-potential states

P Wahl*, MA Schneider, L Diekhoner, R Vogelgesang, K Kern

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

83 Citations (Scopus)

Abstract

The quantum dynamics of the two-dimensional image-potential states in front of the Cu(100) surface is measured by scanning tunneling microscopy and spectroscopy. The dispersion relation and the momentum resolved phase-relaxation time of the first image-potential state are determined from the quantum interference patterns in the local density of states at step edges. It is demonstrated that the tip-induced Stark shift does not affect the motion of the electrons parallel to the surface.

Original languageEnglish
Article number106802
Number of pages4
JournalPhysical Review Letters
Volume91
Issue number10
DOIs
Publication statusPublished - 5 Sept 2003

Keywords

  • SCANNING-TUNNELING-MICROSCOPY
  • METAL-SURFACES
  • SPECTROSCOPY
  • PHOTOEMISSION

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