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Influence of reconstruction on the surface state of Au(110)

Influence of reconstruction on the surface state of Au(110) We present high-resolution angle-resolved photoelectron spectroscopy on Au(110). The unreconstructed surface shows a Shockley-type surface state at E 0 = 590 meV whereas on the ( 2 × 1 ) missing-row reconstructed surface no such surface state below E F can be detected. We performed relativistic local-density approximation calculations which agree well with our experimental data. Adsorption of 1 monolayer Ag on the ( 2 × 1 ) reconstructed surface results in a destruction to a ( 1 × 1 ) surface structure and a Shockley state appears at E 0 = 475 meV . Shifting down the surface state from just above to below E F by Na adsorption allowed to extrapolate a binding energy on the reconstructed surface of E 0 = − 120 meV above the Fermi level. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review B American Physical Society (APS)

Influence of reconstruction on the surface state of Au(110)

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References (41)

Publisher
American Physical Society (APS)
Copyright
Copyright © 2008 The American Physical Society
ISSN
1550-235X
DOI
10.1103/PhysRevB.78.195412
Publisher site
See Article on Publisher Site

Abstract

We present high-resolution angle-resolved photoelectron spectroscopy on Au(110). The unreconstructed surface shows a Shockley-type surface state at E 0 = 590 meV whereas on the ( 2 × 1 ) missing-row reconstructed surface no such surface state below E F can be detected. We performed relativistic local-density approximation calculations which agree well with our experimental data. Adsorption of 1 monolayer Ag on the ( 2 × 1 ) reconstructed surface results in a destruction to a ( 1 × 1 ) surface structure and a Shockley state appears at E 0 = 475 meV . Shifting down the surface state from just above to below E F by Na adsorption allowed to extrapolate a binding energy on the reconstructed surface of E 0 = − 120 meV above the Fermi level.

Journal

Physical Review BAmerican Physical Society (APS)

Published: Nov 15, 2008

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