High-field Hall resistivity and magnetoresistance of electron-doped Pr2-xCexCuO4-delta

Phys Rev Lett. 2007 Jul 27;99(4):047003. doi: 10.1103/PhysRevLett.99.047003. Epub 2007 Jul 25.

Abstract

We report resistivity and Hall effect measurements in electron-doped Pr2-xCexCuO4-delta films in magnetic field up to 58 T. In contrast to hole-doped cuprates, we find a surprising nonlinear magnetic field dependence of Hall resistivity at high field in the optimally doped and overdoped films. We also observe a crossover from quadratic to linear field dependence of the positive magnetoresistance in the overdoped films. A spin density wave induced Fermi surface reconstruction model can be used to qualitatively explain both the Hall effect and magnetoresistance.