Angle-resolved synchrotron photoemission and density functional theory on the iridium modified Si(1?1?1) surface.

Journal of physics. Condensed matter : an Institute of Physics journal

PubMedID: 24945465

Oncel N, Cakir D, Dil JH, Slomski B, Landolt G. Angle-resolved synchrotron photoemission and density functional theory on the iridium modified Si(1?1?1) surface. J Phys Condens Matter. 2014;26(28):285501.
The physical and electronic properties of the Ir modified Si(1?1?1) surface have been investigated with the help of angle resolved photoemission spectroscopy and density functional theory. The surface consists of Ir-ring clusters that form a [Formula: see text]reconstruction. A comparison between the measured and calculated band structure of the system reveals that the dispersions of the projected bulk states and the states originating from [Formula: see text] domains are heavily modified due to Umklapp scattering from the surface Brillouin zone. Density of states calculations show that Ir-ring clusters contribute to the states in the vicinity of the Fermi level.