Abstract
High-resolution Si 2p core level photoemission spectra of the SiO2/Si(111) system show chemically shifted components derived from individual oxidation states, which exhibit strong intensity modulations as a function of photon energy due to final-state diffraction. Analysis of these photoemission intensity modulations gives bond-length information specific to the individual suboxide. The results indicate that the interface is atomically abrupt.
Original language | English |
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Pages (from-to) | 2758-2761 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 77 |
Issue number | 13 |
DOIs | |
State | Published - 1996 |
Externally published | Yes |