Fabry-Pérot and Aharonov-Bohm interference in ideal graphene nanoribbons

Quantum-mechanical calculations of electron magnetotransport in ideal graphene nanoribbons are presented. In noninteracting theory, it is predicted that an ribbon attached to wide leads should reveal Fabry-P\'erot conductance oscillations magnetic field. the theory with Coulomb interaction taken into account, oscillation pattern rather be determined by Aharonov-Bohm interference effect. Both these theories predict formation quasi-bound states, albeit different structures, inside because strong scattering on interfaces between connecting and leads. Conductance a result resonant via quasibound states.