Angle-resolved synchrotron photoemission and density functional theory on the iridium modified Si(111) surface
| Autor: | Nuri Oncel, J. Hugo Dil, Gabriel Landolt, Deniz Çakır, Bartosz Slomski |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Silicon
Materials science Light Surface Properties Inverse photoemission spectroscopy Angle-resolved photoemission spectroscopy 02 engineering and technology Iridium 01 natural sciences symbols.namesake 0103 physical sciences Scattering Radiation Computer Simulation General Materials Science 010306 general physics Electronic band structure Physics Fermi level 021001 nanoscience & nanotechnology Condensed Matter Physics Umklapp scattering Brillouin zone Models Chemical Density of states symbols Density functional theory Atomic physics 0210 nano-technology Synchrotrons |
| Zdroj: | Journal of physics : condensed matter Journal of Physics-Condensed Matter Journal of Physics: Condensed Matter |
| ISSN: | 0953-8984 |
| Popis: | 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 root 7 x root 7 -R19.1 degrees 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 '1x1' 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|