Weak localization in bilayer graphene

We have performed the first experimental investigation of quantum interference corrections to the conductivity of a bilayer graphene structure. A negative magnetoresistance--a signature of weak localization--is observed at different carrier densities, including the electroneutrality region. It is ve...

Full description

Saved in:
Bibliographic Details
Published in:Physical review letters 2007-04, Vol.98 (17), p.176805-176805, Article 176805
Main Authors: Gorbachev, R V, Tikhonenko, F V, Mayorov, A S, Horsell, D W, Savchenko, A K
Format: Article
Language:English
Subjects:
Carbon - chemistry
Electric Conductivity
Electrons
Graphite - chemistry
Magnetics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We have performed the first experimental investigation of quantum interference corrections to the conductivity of a bilayer graphene structure. A negative magnetoresistance--a signature of weak localization--is observed at different carrier densities, including the electroneutrality region. It is very different, however, from the weak localization in conventional two-dimensional systems. We show that it is controlled not only by the dephasing time, but also by different elastic processes that break the effective time-reversal symmetry and provide intervalley scattering.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.98.176805