We show that the hopping magnetoconductivity in doped semiconductors with a narrow enough impurity band exhibits damped quantum oscillations. They arise from the existence of a region (“interference hole”) between two hopping sites in which an intermediate site cannot produce complete destructive interference. Magnetoconductivity measurements in δ-doped semiconductors which exhibit an oscillatory behaviour at low temperatures can be explained in terms of this effect.
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Fritzsche et al. (1993) studied this question.
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