Abstract:A theoretical study of the defect characteristics in a GaP/InP strained-layer superlattice is presented. Based on the calculated charge states, some closely bound interstitial-antisite pairs are found to form at a distance of a bond length in a stable GaP/InP (1 x 1) structure. The defect-related states localized in the energy gap suggest that the formation mechanism of the EL2 complex in the GaAs system is unsuitable for GaP/InP multilayer structures. A slow self-diffusion procedure is proposed for both group… Show more
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