Hartree-Fock theory of hole stripe states

We report on Hartree-Fock theory results for stripe states of two-dimension al hole systems in quantum wells grown on GaAs (311)A substrates. We find t hat the stripe orientation energy has a rich dependence on hole density, an d on in-plane field magnitude and orientation. Unlike the electron case, th e orientation energy is nonzero for zero in-plane field, and the ground sta te orientation can be either parallel or perpendicular to a finite in-plane field. We predict an orientation reversal transition in in-plane fields ap plied along the [(2) over bar 33] direction.