Quantum Hall stripes in tilted magnetic fields in high-density GaAs quantum wells

ORAL

Abstract

Quantum Hall stripe phases in GaAs quantum wells are usually aligned along [110] crystal axis but can exhibit unconventional orientation (along [1-10] direction) when the electron density is sufficiently high. It was recently demonstrated for stripe phases with conventional orientation that the number of in-plane magnetic field-induced reorientations depends sensitively on the carrier density. In particular, it was shown that the in-plane magnetic field does not reorient stripes when the density exceeds a certain value. Here, we investigate the effect of the in-plane magnetic field on stripe phases in high-density GaAs quantum wells. We find that the native stripes are still aligned along [110] and usually prefer to align perpendicular to the in-plane magnetic field.

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Presenters

  • X Fu

    Univ of Minn - Minneapolis, University of Minnesota

Authors

  • X Fu

    Univ of Minn - Minneapolis, University of Minnesota

  • Qianhui Shi

    University of Minnesota

  • Michael Zudov

    Univ of Minnesota, Univ of Minn - Minneapolis, University of Minnesota

  • K Baldwin

    Princeton University, Princeton Univ, Electrical Engineering, Princeton Univ, Department of Electrical Engineering, Princeton University, EE, Princeton University

  • Loren Pfeiffer

    Electrical Engineering, princeton university, Department of Electrical Engineering, Princeton University, Princeton University, Princeton Univ, Electrical Engineering, Princeton Univ, EE, Princeton University

  • K West

    Electrical Engineering, princeton university, Department of Electrical Engineering, Princeton University, Princeton University, Univ of Basel, Princeton Univ, Electrical Engineering, Princeton Univ, EE, Princeton University