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arXiv · cond-mat/9905353

Field-tilt Anisotropy Energy in Quantum Hall Stripe States

T. Jungwirth·A. H. MacDonald·L. Smrcka·S. M. Girvin
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Abstract

Recently reported giant anisotropy in the longitudinal resistivity of a 2D electron system with valence Landau level index $N \ge 2$ has been interpreted as a signal of unidirectional charge density wave (UCDW) ground states. We report on detailed Hartree-Fock calculations of the UCDW orientation energy induced by a tilted magnetic field. We find that for current experimental samples stripes are oriented perpendicular to the in-plane field, consistent with experiment. For wider 2D electron systems we predict tilt-induced stripe states with variable anisotropy energy sign.

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T. Jungwirth, A. H. MacDonald, L. Smrcka, S. M. Girvin. 2000-02-08. Field-tilt Anisotropy Energy in Quantum Hall Stripe States. https://doi.org/10.1103/physrevb.60.15574

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