Localization and One-Parameter Scaling in Hydrogenated Graphene

Details Localization and One-Parameter Scaling in Hydrogenated Graphene Localization and One-Parameter Scaling in Hydrogenated Graphene

2010-03-10

arxiv.org/abs/1003.2041v2

Physical Review B 81, 193412 (2010) (http://link.aps.org/doi/10.1103/PhysRevB.81.193412)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 4 figures

Scientific paper

10.1103/PhysRevB.81.193412

We report a metal-insulator transition in disordered graphene with low coverages of hydrogen atoms. Hydrogen interacting with graphene creates short-range disorder and localizes states near the neutrality point. The energy range of localization grows with increasing of H concentration. Calculations show that the conductances through low-energy propagating channels decay exponentially with sample size and are well fitted by one-parameter scaling function, similar to a disorder-driven metal-insulator transition in 2-dimensional disordered systems.

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