Detection of Coulomb Charging around an Antidot in the Quantum Hall Regime
Detection of Coulomb Charging around an Antidot in the Quantum Hall Regime
We have detected oscillations of the charge around a potential hill (antidot) in a two-dimensional electron gas as a function of a large magnetic field $B$. The field confines electrons around the antidot in closed orbits, the areas of which are quantized through the Aharonov-Bohm effect. Increasing $B$ reduces each …