%0 Journal Article
%A Neumann, Christoph
%A Reichardt, Sven
%A Drögeler, Marc
%A Terrés, Bernat
%A Watanabe, Kenji
%A Taniguchi, Takashi
%A Beschoten, Bernd
%A Rotkin, Slava V.
%A Stampfer, Christoph
%T Low B Field Magneto-Phonon Resonances in Single-Layer and Bilayer Graphene
%J Nano letters
%V 15
%N 3
%@ 1530-6992
%C Washington, DC
%I ACS Publ.
%M FZJ-2015-02784
%P 1547 - 1552
%D 2015
%X Many-body effects resulting from strong electron− electron and electron−phonon interactions play a significant role in graphene physics. We report on their manifestation in low B field magneto-phonon resonances in high-quality exfoliated single-layer and bilayer graphene encapsulated in hexagonal boron nitride. These resonances allow us to extract characteristic effective Fermi velocities, as high as 1.20 × 106 m/s, for the observed “dressed” Landau leveltransitions, as well as the broadening of the resonances, which increases with the Landau level index.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000351188000015
%$ pmid:25646665
%R 10.1021/nl5038825
%U https://juser.fz-juelich.de/record/189754