| Stark Effect and Scanning Tunneling Spectroscopy of the Ag(111) Surface State |
| L. Limot a , T. Maroutian a , P. Johansson b and R. Berndt a a Institut für Experimentelle und Angewandte Physik Christian-Albrechts-Universität zu Kiel, 24098 Kiel, Germany b Department of Natural Sciences, University of Örebro, 70182, Örebro, Sweden |
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| Low-temperature scanning tunneling spectroscopy is used to study the Ag(111) surface state over an unprecedented range of junction resistances. The presence of the tip causes a shift of the surface state towards higher binding energies, increasingly stronger as the resistance decreases. A one-dimensional model calculation reproduces this observation and provides a connection to existing photoemission spectroscopy data. Implications of the effect on STS studies are discussed. |
| DOI: 10.12693/APhysPolA.104.185 PACS numbers: 73.20.--r, 68.37.Ef |