Maurizio Fagotti, Claudio Bonati, Demetrio Logoteta, Paolo Marconcini, Massimo Macucci
Published 2011-02-10, updated 2011-06-25Version 3
We consider a single layer graphene nanoribbon with armchair edges in a longitudinally constant external potential and point out that its transport properties can be described by means of an effective non-Hermitian Hamiltonian. We show that this system has some features typical of dissipative systems, namely the presence of exceptional points and of PT-symmetry breaking, although it is not dissipative.
Comments: 5 pages, 2 eps figures
Journal: Phys. Rev. B 83, 241406(R) (2011)
Current-voltage (I-V) characteristics of armchair graphene nanoribbons under uniaxial strain
Single-parameter quantum charge and spin pumping in armchair graphene nanoribbons
Engineering plasmon modes and their loss in armchair graphene nanoribbons by selected edge-extended defects
![QR code for arXiv:1102.2129 [cond-mat.mes-hall]](http://oss.arxitics.com/images/favicon.svg)