Ballistic transport of (001) GaAs two-dimensional holes through a strain-induced lateral superlattice

  title={Ballistic transport of (001) GaAs two-dimensional holes through a strain-induced lateral superlattice},
  author={Dobromir Kamburov and Hassan Shapourian and Mansour Shayegan and Loren N. Pfeiffer and Ken W. West and Kirk W. Baldwin and Roland G. Winkler},
  journal={Physical Review B},
We report the observation of ballistic commensurability oscillations and positive magnetoresistance in a high-mobility, (001) GaAs two-dimensional hole system with a unidirectional, surface-strain-induced, periodic potential modulation. The positions of the resistivity minima agree well with the electrostatic commensurability condition. From an analysis of the amplitude of the oscillations we deduce a ballistic scattering time and an effective magnitude for the induced periodic potential seen… 
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