Phys. Rev. Lett. 102, 086802 (2009) [4 pages]Temperature-Dependent Screening of the Edge State around Antidots in the Quantum Hall RegimeReceived 12 October 2008; published 23 February 2009 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-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 a progressively steeper slope with increasing temperature. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.086802
DOI:
10.1103/PhysRevLett.102.086802
PACS:
73.23.−b, 73.43.−f
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.