Title
Topological confinement in graphene bilayer quantum rings Topological confinement in graphene bilayer quantum rings
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
New York, N.Y. :American Institute of Physics ,
Subject
Physics
Source (journal)
Applied physics letters / American Institute of Physics. - New York, N.Y., 1962, currens
Volume/pages
96(2010) :21 , p. 212108,1-212108,3
ISSN
0003-6951
1077-3118
ISI
000278183200039
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We find localized electron and hole states in a ring-shaped potential kink in biased bilayer graphene. Within the continuum description, we show that for sharp potential steps the Dirac equation describing carrier states close to the K (or K′) point of the first Brillouin zone can be solved analytically for a circular kink/antikink dot. The solutions exhibit interfacial states which exhibit AharonovBohm oscillations as functions of the height of the potential step and/or the radius of the ring.
E-info
https://repository.uantwerpen.be/docman/iruaauth/b127e5/216a0ed7cdd.pdf
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