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Crystals 2013, 3(1), 14-27; doi:10.3390/cryst3010014

Bound States and Supercriticality in Graphene-Based Topological Insulators

1 Institut für Theoretische Physik, Heinrich-Heine-Universität, D-40225 Düsseldorf, Germany 2 Department of Mathematical Science, City University London, London EC1V 0HB, UK
* Author to whom correspondence should be addressed.
Received: 16 November 2012 / Revised: 17 December 2012 / Accepted: 9 January 2013 / Published: 21 January 2013
(This article belongs to the Special Issue Graphenes)
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We study the bound state spectrum and the conditions for entering a supercritical regime in graphene with strong intrinsic and Rashba spin-orbit interactions within the topological insulator phase. Explicit results are provided for a disk-shaped potential well and for the Coulomb center problem.
Keywords: graphene; supercriticality; spin-orbit interaction graphene; supercriticality; spin-orbit interaction
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Klöpfer, D.; De Martino, A.; Egger, R. Bound States and Supercriticality in Graphene-Based Topological Insulators. Crystals 2013, 3, 14-27.

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