Abstract
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 by the two-dimensional holes.
| Original language | English (US) |
|---|---|
| Article number | 121305 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 85 |
| Issue number | 12 |
| DOIs | |
| State | Published - Mar 28 2012 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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