Study of magnetotransport properties of interacting quantum dot systems using the ECA method

► Magnetotransport of an interacting quantum dot in a magnetic field is studied. ► Spin-resolved conductances in different transport regimes are compared. ► The mixed-valence regime has the largest conductance polarization. ► Spin-resolved conductances exhibit an approximate universal behavior. ► We find an interesting inversion of the sign of the polarization.