In arrays of AlₓGa_1-xAs-GaAs quantum dots and antidots we observe, with far-infrared spectroscopy for increasing magnetic field, huge (up to 20%) oscillations of the resonance frequency of the edge-magnetoplasmon-like mode. At fully occupied Landau levels the frequency has a maximum for the dots, and the reverse behavior, a minimum, for the antidots. We show that this is caused by the formation of compressible and incompressible stripes at the edges of the dots and antidots.
No takes yet. Share an insight, caveat, or question.
Bollweg et al. (1996) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: