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VOLUME 59 (1994) | ISSUE 12 | PAGE 827
Fine structure in the spectra of thermalized photoelectrons emitted from GaAs with a negative electron affinity
Spectra of photoelectrons emitted from the Γ valley of GaAs with a negative electron affinity have been measured at 77 К with a resolution of 5 meV. These are the first such measurements. A fine structure which is seen in the spectra stems from particular features of the emission processes and of the thermalization of photoelectrons near the surface.