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- University of AugsburgDE30 papers
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4 papers · 1 filter
Gaps and tails in graphene and graphane
B. Dora, K. Ziegler
We study the density of states in monolayer and bilayer graphene in the presence of a random potential that breaks sublattice symmetries. While a uniform symmetry-breaking potentia…
Diffusion in the random gap model of mono- and bilayer graphene
K. Ziegler
In this paper we study the effect of a fluctuating gap in mono- and bilayer graphene, created by a random staggered potential. We identify a continuous symmetry for the two-particl…
On the minimal conductivity of graphene
K. Ziegler
The minimal conductivity of graphene is a quantity measured in the DC limit. It is shown, using the Kubo formula, that the actual value of the minimal conductivity is sensitive to…
Phase space signatures of the Anderson transition
Andre Wobst, Gert-Ludwig Ingold, Peter Hänggi +1
We use the inverse participation ratio based on the Husimi function to perform a phase space analysis of the Anderson model in one, two, and three dimensions. Important features of…