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VOLUME 48 (1988) | ISSUE 11 | PAGE 623
Manifestation of spin fluctuations in the hopping conductivity of semimagnetic semiconductors
Experiments reveal that in a certain interval of impurity concentrations the hopping conductivity of semimagnetic semiconductors results from two activation processes. The effect is explained in terms of spin fluctuations in the spectrum of a bound magnetic polaron at an acceptor and the fluctuations in the state radius which stem from these spin fluctuations.