Noble metal surface states: deviations from parabolic dispersion

Dispersion relations of the s-p derived surface state on (111) surfaces of silver and copper have been measured using low-temperature scanning tunneling microscopy and spectroscopy. For silver as well as for copper we find a significant deviation from a parabolic dispersion characteristic of free-electron-like systems. A simple tight-binding model accounts for the trends in the measured dispersions. (C) 2000 Elsevier Science B.V. All rights reserved.


Published in:
Surface Science, 447, 1-3, L157-L161
Year:
2000
ISSN:
0039-6028
ISBN:
0039-6028
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 Record created 2009-04-14, last modified 2018-01-28

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