Abstract

The ab-plane resistivity of Bi2Sr2CuO, crystals as a function of temperature has been measured. In the process of metal-insulator transition, the crystals at low temperature exhibit the two-dimensional weak localization behavior at first, and cross over to the variable-range-hopping conduction of the strong localization regime gradually. Discussions on the nature of the metal-insulator transition are presented based on the experimental results.

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