Hall effect in unidirectionally twinned YBaCuO thin films

Abstract We report on the scaling relation between the Hall and longitudinal resistivities, ρ H ∝ ρ β , in an unidirectionally twinned YBCO thin film, for current flowing parallel and perpendicular to the twin boundaries for high magnetic fields. Our results are discussed in the framework of existing models for anisotropic pinning.