Bound states in graphene via Fermi velocity modulation
European Physical Journal Plus
We obtain zero energy solutions of a (2+1)-dimensional massless Dirac-like equation with a position-dependent Fermi velocity in the presence of an electrostatic potential. Several velocity profiles and electrostatic potentials have been considered and the relation with PT symmetry has been pointed out.
Ghosh, P. and Roy, P., "Bound states in graphene via Fermi velocity modulation" (2017). Journal Articles. 2791.