On electron (anti)localization in graphene
D.V.Khveshchenko
TL;DR
This paper investigates how electron localization in graphene differs from traditional 2D electron gases, highlighting suppressed localization effects due to Dirac-like dispersion, aligning with recent experiments.
Contribution
It identifies conditions under which localization effects are suppressed in graphene, providing a theoretical explanation consistent with experimental findings.
Findings
Localization effects are strongly suppressed in graphene compared to conventional 2D electron gases.
Logarithmic temperature-dependent conductivity corrections are diminished in graphene.
Theoretical conditions for suppression match recent experimental observations.
Abstract
We discuss localization properties of the Dirac-like electronic states in monolayers of graphite. In the framework of a general disorder model, we identify the conditions under which such standard localization effects as logarithmic temperature-dependent conductivity corrections appear to be strongly suppressed, as compared to the case of a two-dimensional electron gas with parabolic dispersion, in agreement with recent experimental observations.
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