Conduction properties of extended defect states in Dirac materials
Dipartimento di Fisica “E.R. Caianiello”, Università di Salerno, Via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
Accepted: 25 May 2020
Published online: 2 June 2020
We demonstrate the existence of localized states in close vicinity of a linear defect in graphene. These states have insulating or conducting character. Insulating states form a flat band, while conducting states present a slowdown of the group velocity which is not originated by many-body interactions and it is controlled by the interface properties. For appropriate boundary conditions, the conducting states exhibit momentum-valley locking and protection from backscattering effects. These findings provide a contribution to the recent discussion on the origin of correlated phases in graphene.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2020