Lara-Avila, Samuel and Tzalenchuk, Alexander and Kubatkin, Sergey and Yakimova, Rositza and Janssen, T. J. B. M. and Cedergren, Karin and Bergsten, Tobias and Falko, Vladimir (2011) Disordered Fermi Liquid in Epitaxial Graphene from Quantum Transport Measurements. Physical review letters, 107 (16): 166602. ISSN 1079-7114
Abstract
We have performed magnetotransport measurements on monolayer epitaxial graphene and analyzed them in the framework of the disordered Fermi liquid theory. We have separated the electron-electron and weak-localization contributions to resistivity and demonstrated the phase coherence over a micrometer length scale, setting the limit of at least 50 ps on the spin relaxation time in this material.