The effect of parallel magnetic field on the Boltzmann conductivity and the Hall coefficient of a disordered two-dimensional Fermi liquid - art. no. 113102

Screening of an external random potential by a two-dimensional (2D) Fermi l iquid may be strongly dependent on the degree of its polarization. This is proposed as a possible mechanism for the observed strong magnetoresistance of the 2D electron liquid in the magnetic field parallel to the electron pl ane. A Hartree-Fock calculation for the weakly disordered Hubbard model tha t qualitatively describes the experiments on the diagonal and the Hall resi stivity in the finite-temperature metallic state in the high-mobility Si in version layers is presented.