Guy Trambly De Laissardière, Didier Mayou
We propose a unified description of transport in graphene with resonant and non-resonant adsorbates. This allows to test the validity of many approximate theories and in particular we show how semi-classical approximations fail near the Dirac energy for resonant and non-resonant adsorbates. Close to the Dirac energy an empirical formula for the conductivity, valid in a large range of values of the inelastic mean-free path Li, is obtained. This formula fully takes into account localization effects and consequences for the temperature dependence of the conductivity and for the magneto-conductivity are detailed.
View original:
http://arxiv.org/abs/1212.3997
No comments:
Post a Comment