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cond-mat.mtrl-sci2014★ 29 cited
Indirect band gap in graphene from modulation of the Fermi velocity
Jonas R. F. Lima, F. Moraes
In this work we study theoretically the electronic properties of a sheet of graphene grown on a periodic heterostructure substrate. We write an effective Dirac equation, which incl…
cond-mat.mtrl-sci2003★ 39 cited
Solid State Analog for He-McKellar-Wilkens Quantum Phase
C. A. de Lima Ribeiro, Claudio Furtado, Fernando Moraes
In this letter we investigate the quantum dynamics of a quasiparticle in the presence of a charged screw dislocation submitted to a uniform magnetic field. Analysing the quantum sc…