Magnetic field induced confinement–deconfinement transition in graphene quantum dots
- 20 January 2009
- journal article
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 21 (10), 102201
- https://doi.org/10.1088/0953-8984/21/10/102201
Abstract
Massless Dirac particles cannot be confined by an electrostatic potential. This is a problem for making graphene quantum dots but confinement can be achieved with a magnetic field and here general conditions for confined and deconfined states are derived. There is a class of potentials for which the character of the state can be controlled at will. Then a confinement-deconfinement transition occurs which allows the Klein paradox to be probed experimentally in graphene dots. A dot design suitable for this experiment is presented.Keywords
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