Bulletin of the American Physical Society
APS March Meeting 2013
Volume 58, Number 1
Monday–Friday, March 18–22, 2013; Baltimore, Maryland
Session M3: Invited Session: Novel Quantum Phases in Artificial Lattices and Networks
8:00 AM–11:00 AM,
Wednesday, March 20, 2013
Room: Ballroom III
Sponsoring Unit: DCMP
Chair: Steven Louie, University of California, Berkeley
Abstract ID: BAPS.2013.MAR.M3.2
Abstract: M3.00002 : Dirac Fermions in a Nanopatterned Two-Dimensional Electron Gas*
8:36 AM–9:12 AM
Preview Abstract Abstract
(Department of Physics and Astronomy and Center for Theoretical Physics, Seoul National University)
If a lateral periodic potential with triangular (or honeycomb) lattice symmetry is applied to a conventional two-dimensional electron gas (2DEG), the charge carriers behave like massless Dirac ferions [1,2]. A very interesting and useful point of these newly-generated massless Dirac fermions is that, unlike the case of graphene, their properties can be tuned through the external periodic potential. In this presentation, I will review the electronic properties of those newly-generated massless Dirac fermions in an artificial 2DEG superlattice system and will discuss how the elecctronic structure of those massless Dirac fermions changes depending on the external periodic potential . \\[4pt]  C.-H. Park and S. G. Louie, Nano Lett. 9, 1793 (2009).\\[0pt]  M. Gibertini et al., Phys. Rev. B 79, 241406 (2009).\\[0pt]  C.-H. Park et al., in preparation.
*This work was partly supported by Research Settlement Fund for the new faculty of SNU.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2013.MAR.M3.2
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