Noble metal surface states: deviations from parabolic dispersion
نویسنده
چکیده
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. © 2000 Elsevier Science B.V. All rights reserved.
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تاریخ انتشار 2000