Abstract

Resistivity and Hall coefficient of Y 1−xCa xBa 2Cu 3O y (YCBCO) were measured and analyzed by a simple two-carrier model involving holes and electrons. The experimental results are reproduced well, and the carrier concentration and mobility estimated from the model are reasonable values in physics. The data of Tl 2Ba 2CuO y measured by Kubo et al. also were analyzed by the same model and the result was compared with that of YCBCO. In both systems, the properties of electron carrier remarkably change for hole-doping compared with those of hole carrier.

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