We have performed a study of magnetoresistivity, Seebeck, Nernst and Hall effects in the mixed state and in the fluctuation regime above T c 0 for Bi:2223 bulk doped with Ga (0 ≤ x ≤ 0.05), prepared by the conventional solid state reaction method, in magnetic fields between 0 and 5 T and in the temperature range 5–120 K. It was found that critical temperatures, the Hall concentration, and the Nernst and Seebeck coefficients depend strongly on the Ga contents in the samples. The Hall resistivity ρxy showed a sign anomaly in the mixed state and scaled with longitudinal resistivity ρxx with a power coefficient β ≅ 2. The experimental data are in agreement with the predictions of the time-dependent Ginzburg–Landau theory.
