Angular-resolved photo-emission investigations were made of the Shockley-type surface state on the reconstructed (111) surface of gold. The so-called herring-bone reconstruction, with three different 22 x √3 domain orientations, formed a super-lattice that had a clearly observable influence on the surface electronic structure. In the L gap of the projected bulk states, there appeared 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 was a clear indication of the existence of surface-state band gaps in the electronic density of states of the Shockley state.

Influence of the Herringbone Reconstruction on the Surface Electronic Structure of Au(111). F.Reinert, G.Nicolay: Applied Physics A, 2004, 78[6], 817-21