Kato M, Endo A, Katsumoto S, Iye Y. Temperature-dependent screening of the edge state around antidots in the quantum Hall regime.
PHYSICAL REVIEW LETTERS 2009;
102:086802. [PMID:
19257767 DOI:
10.1103/physrevlett.102.086802]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2008] [Indexed: 05/27/2023]
Abstract
The Aharonov-Bohm effect in a small array of antidots with a large aspect ratio is investigated in the quantum Hall regime. The evolution with temperature of the Aharonov-Bohm oscillations in the magnetic field versus gate voltage (B-V_{g}) plane reveals the temperature dependence of the screening. The self-consistently screened potential of the compressible band surrounding an antidot is observed to gain a progressively steeper slope with increasing temperature.
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