Abstract

A fully dynamical one-step theory of photoemission for several atoms per unit cell is applied to GaAs. The theory is a relativistic generalization of the original work due to Pendry and allows for calculating theoretical ultraviolet photoemission and bremsstrahlung isochromat spectra from pure elemental solids and compounds. Here we present the calculated intensity and spin-polarization of photoelectrons excited by circular polarized radiation from the GaAs(110) surface.

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