Correlated Double-Electron Additions at the Edge of a Two-Dimensional Electronic System.

  title={Correlated Double-Electron Additions at the Edge of a Two-Dimensional Electronic System.},
  author={A. Demir and Neal E. Staley and Samuel Aronson and Spencer L. Tomarken and Ken W. West and Kirk W. Baldwin and Loren N. Pfeiffer and Raymond C Ashoori},
  journal={Physical review letters},
  volume={126 25},
We create laterally large and low-disorder GaAs quantum-well-based quantum dots that act as small two-dimensional electron systems. We monitor tunneling of single electrons to the dots by means of capacitance measurements and identify single-electron capacitance peaks in the addition spectrum from occupancies of one up to thousands of electrons. The data show two remarkable phenomena in the Landau level filling factor range ν=2 to ν=5 in selective probing of the edge states of the dot: (i… Expand
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