Superconducting Fluctuation in Hall and Diagonal Conductivities in YBa2Cu3O7−δ
Magnetic field dependence of Hall conductivity of YBa2Cu3O7−δ single crystal thin films are studied near above the mean field transition temperature Tc. Hall conductance deviates from an H-linear dependence. The deviation is attributed to the superconducting fluctuation effect and analyzed in terms of a theory considering the skew scattering effect, phenomenologically. Skew scattering life times are derived, which indicate that skew scattering plays an important role in the normal-state Hall effect.
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