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Updated: Apr 17, 2026

Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials
Published on: January 21, 2016
Low B field magneto-phonon resonances in single-layer and bilayer graphene
Christoph Neumann1, Sven Reichardt, Marc Drögeler
1JARA-FIT and 2nd Institute of Physics, RWTH Aachen University , 52074 Aachen, Germany.
Abstract:
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 × 10(6) m/s, for the observed "dressed" Landau level transitions, as well as the broadening of the resonances, which increases with the Landau level index.
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