Phys. Rev. B 44, 1657–1662 (1991)Influence of Coulomb repulsion on the Aharonov-Bohm effect in a quantum dotReceived 25 March 1991; published in the issue dated 15 July 1991 We consider the Aharonov-Bohm (AB) effect in the quantum Hall regime due to resonant tunneling into circulating edge states in a disk-shaped two-dimensional electron gas. We point out that the AB effect requires the incremental charging of the disk by single electrons. The charging energy is shown to reduce the frequency of the magnetoconductance oscillations. We predict the phenomenon of the ‘‘Coulomb blockade of the Aharonov-Bohm effect’’: The AB effect is suppressed in a disk of small capacitance, but can be recovered by making a large hole in the center of the disk. © 1991 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.44.1657
DOI:
10.1103/PhysRevB.44.1657
PACS:
73.50.Jt, 72.20.My, 73.20.Dx, 73.40.Gk
|
|
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.