Temperature-dependent screening of the edge state around antidots in the quantum Hall regime

Abstract

The Aharonov-Bohm (AB) effect in a small array of antidots with large aspect ratio is investigated in the quantum Hall regime. The evolution with temperature of the AB oscillations in the magnetic field vs gate voltage (B-Vg) plane reveals the temperature dependence of the screening. The self-consistently screened potential of the compressible band surrounding an antidot is observed to gain progressively steeper slope with increasing temperature.

4 pages, 4 figures

References in corpus (6)

• Aharonov-Bohm electron interferometer in the integer quantum Hall regime
• Suppression of compressible edge channels and spatial spin polarization in the integer quantum Hall regime
• Electron interactions in an antidot in the integer quantum Hall regime
• Electron tunneling spectroscopy of a quantum antidot in the quantum Hall regime
• The quenching of compressible edge states around antidots
• Resistance fluctuations and Aharonov-Bohm-type oscillations in antidot arrays in the quantum Hall regime