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

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

2008-10-14

arxiv.org/abs/0810.2339v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.102.086802

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.

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