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Hartree-Fock Theory of Hole Stripe States

Tae-Suk Kim, S. R. Eric Yang, A. H. MacDonald

cond-mat.mes-hallarXiv:cond-mat/0005374

Abstract

We report on Hartree-Fock theory results for stripe states of two-dimensional hole systems in quantum wells grown on GaAs (311)A substrates. We find that the stripe orientation energy has a rich dependence on hole density, and on in-plane field magnitude and orientation. Unlike the electron case, the orientation energy is non-zero for zero in-plane field, and the ground state orientation can be either parallel or perpendicular to a finite in-plane field. We predict an orientation reversal transition in in-plane fields applied along the 233 direction.

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