Site of Oxygen Chemisorption on the GaAs(110) Surface
作者： Eugene J. Mele , J. D. Joannopoulos
DOI: 10.1103/PHYSREVLETT.40.341
关键词: Physical chemistry 、 Molecule 、 Spectroscopy 、 Spectral line 、 Surface (mathematics) 、 Oxygen 、 Arsenic 、 Atomic physics 、 Chemisorption 、 Materials science
摘要: We reconcile energy-loss spectroscopy and chemical-shift studies of the oxidation GaAs(110) surface, which previously have led to contradictory conclusions about oxygen bonding site. calculated densities states 100-eV ultraviolet-photo-electron-spectroscopy (UPS) valence-band spectra examine site molecular species chemisorbed oxygen. conclude that for low coverages prefers chemisorb surface arsenic atoms chemisorbs as an ${\mathrm{O}}_{2}$ molecule.
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