Influence of the herringbone reconstruction on the surface electronic structure of Au(111)

We present angular-resolved photoemission investigations of the Shockley-type surface state on the reconstructed (111) surface of gold. The so-called herringbone reconstruction, with three different 22X3domain orientations, forms a super-lattice that has a clearly observable influence on the surface...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2004-03, Vol.78 (6), p.817-821
Main Authors: Reinert, F., Nicolay, G.
Format: Article
Language:English
Subjects:
Electronic structure
Electronics
Energy gaps (solid state)
Gold
Indication
Orientation
Photoemission
Reconstruction
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Summary:We present angular-resolved photoemission investigations of the Shockley-type surface state on the reconstructed (111) surface of gold. The so-called herringbone reconstruction, with three different 22X3domain orientations, forms a super-lattice that has a clearly observable influence on the surface electronic structure. In the L gap of the projected bulk states, there appears a non-uniform photoemission intensity distribution due to the back-folding of the Shockley state at the Bragg planes of the reduced surface Brillouin zone. Furthermore, there is a clear indication of the existence of surface-state band gaps in the electronic density of states of the Shockley state.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-003-2436-6