Anomalous corrections to the Hall resistivity of spin-polarized holes in a two-dimensional GaAs/ Alx Ga1-x As heterostructure

Hall effect of two-dimensional holes that are spin-polarized by a strong parallel magnetic field was explored with a small tilt angle. The Hall resistivity increases nonlinearly with the magnetic field and exhibits negative corrections. The anomalous negative corrections increase with the perpendicular magnetization of the two-dimensional hole system. We attribute this to the anomalous Hall effect of spin-polarized carriers in a nonmagnetic system. The anomalous corrections to the conductivity exhibit nonmonotonic dependence on the magnetic field.