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The hyperfine interaction of an electron with nuclei in the annealed self-assembled InAs/GaAs quantum dots is theoretically analyzed. For this purpose, the annealing process, and energy structure of the quantum dots are numerically modeled. The modeling is verified by comparison of the calculated optical transitions and of the experimental data on photoluminescence for set of the annealed quantum dots. The localization volume of the electron in the ground state and the partial contributions of In, Ga, and As nuclei to the hyperfine interaction are calculated as functions of the annealing temperature. It is established that the contribution of indium nuclei into the hyperfine interaction becomes predominant up to high annealing temperatures (T = 980 C) when the In content in the quantum dots does not exceed 25%. Effect of the nuclear ...
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