Chemical and structural studies of the interactions of molecular sulfur with the GaAs (111) A and GaAs (111) B surfaces
The interactions of sulfur with the GaAs (111) A and (111) B surfaces has been investigated
by synchrotron radiation photoelectron spectroscopy. A scanning tunnelling microscopy
study has been performed on the sulfur treated GaAs (111) B surface. Clean GaAs (111)
surfaces, prepared in UHV by the thermal removal of an As cap, were exposed in situ to a
molecular beam of sulfur. Changes in the surface chemistry and the Fermi level position
were monitored as a function of annealing temperature. While this treatment results in …
by synchrotron radiation photoelectron spectroscopy. A scanning tunnelling microscopy
study has been performed on the sulfur treated GaAs (111) B surface. Clean GaAs (111)
surfaces, prepared in UHV by the thermal removal of an As cap, were exposed in situ to a
molecular beam of sulfur. Changes in the surface chemistry and the Fermi level position
were monitored as a function of annealing temperature. While this treatment results in …
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