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VOLUME 40 (1984) | ISSUE 1 | PAGE 5
Electron localization and negative magnetoresistance in disordered PbTe films
A negative magnetoresistance, AR [H) < 0, has been observed in PbTe films in the hopping-conductivity region. The increase in the carrier density due to the frozen photoconductivity causes AR /R to drop to zero and changes the sign of AR [H).