Minimal conductivity in bilayer graphene

Abstract

Using the Landauer formula approach, it is proven that minimal conductivity of order of $e^2/h$ found experimentally in bilayer graphene is its intrinsic property. For the case of ideal crystals, the conductivity turns our to be equal to $e^2/2h$ per valley per spin. A zero-temperature shot noise in bilayer graphene is considered and the Fano factor is calculated. Its value $1-2/\pi$ is close to the value 1/3 found earlier for the single-layer graphene.

3 pages, 1 figure

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