Eur. Phys. J. B 52, 151-153 (2006)
https://doi.org/10.1140/epjb/e2006-00294-6

Minimal conductivity in bilayer graphene

Institute for Molecules and Materials, Radboud University Nijmegen, 6525 ED Nijmegen, The Netherlands

Corresponding author: ^a M.Katsnelson@science.ru.nl

Received: 6 June 2006
Published online: 31 July 2006

Abstract

Using the Landauer formula approach, it is proven that minimal conductivity of order e²/h found experimentally in bilayer graphene is an intrinsic property. For the case of ideal crystals, the conductivity turns out to be equal to e²/2h per valley per spin. A zero-temperature shot noise in bilayer graphene is considered and the Fano factor is calculated. Its value 1–2/π is close to the value 1/3 found earlier for single-layer graphene.