The exact vanishing of the interaction corrections to the zero temperature optical conductivity of undoped graphene in the presence of weak short-range interactions is rigorously established. Our results are in agreement with measurements of graphene’s ac conductivity in a range of frequencies between the temperature and the bandwidth. Even if irrelevant in the renormalization group sense, lattice effects and nonlinear bands are essential for the universality of the conductivity.

Giuliani, A., Mastropietro, V., Porta, A. (2011). Absence of interaction corrections in the optical conductivity of graphene. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 83, 195401-195406 [10.1103/PhysRevB.83.195401].

Absence of interaction corrections in the optical conductivity of graphene

MASTROPIETRO, VIERI;
2011-05-01

Abstract

The exact vanishing of the interaction corrections to the zero temperature optical conductivity of undoped graphene in the presence of weak short-range interactions is rigorously established. Our results are in agreement with measurements of graphene’s ac conductivity in a range of frequencies between the temperature and the bandwidth. Even if irrelevant in the renormalization group sense, lattice effects and nonlinear bands are essential for the universality of the conductivity.
mag-2011
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore MAT/07 - FISICA MATEMATICA
English
Con Impact Factor ISI
Graphene, Renormalization Group, conductivity
http://link.aps.org/doi/10.1103/PhysRevB.83.195401
Giuliani, A., Mastropietro, V., Porta, A. (2011). Absence of interaction corrections in the optical conductivity of graphene. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 83, 195401-195406 [10.1103/PhysRevB.83.195401].
Giuliani, A; Mastropietro, V; Porta, A
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/8402
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