Magnetotransport in overdoped La$_{2-x}$Sr$_x$CuO$_4$: Effect of anisotropic scattering

We revisit the Hall effect and magnetoresistivity by incorporating the anisotropic scattering caused by apical oxygen vacancies in overdoped La-based cuprates 1 . The theoretical calculations within the Fermi liquid picture agree well with a handful of anomalous magneto-transport data, better than the results using an isotropic scattering rate alone. In particular, we obtain the upturn of Hall coefficient R H with decreasing temperature T 2,3 , the initial drop of R H in magnetic field B in all overdoped regimes 4,5 , the linear resistivity ρ versus B near the van Hove doping level 6,7 , the temperature dependence of the magnetoresistivity ratio 6–9 , and the violation of Kohler’s law 8,9 . These results suggest that many of the anomalous transport behaviors in overdoped La 2 − x Sr x CuO 4 could actually be understood within the Fermi liquid picture.