Abstract

Magnetoresistivity and the Hall effect measured in magnetic fields up to B=9T (B∥c,J∥ab) in electron-doped Nd2−xCexCuO4+δ single crystal films with x=0.14, 0.15, and 0.18 and different oxygen contents (δ) were studied for temperatures in the range 0.4–4.2K. The behavior of the resistivity and Hall coefficient in the mixed state are discussed in terms of a flux-flow model including a vortex counterflow owing to pinning forces.

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