Resonant Excitation of Graphene K-Phonon and Intra-Landau-Level Excitons in Magneto-Optical Spectroscopy

M. Orlita, Liang Z. Tan, M. Potemski, M. Sprinkle, C. Berger, W. A. de Heer, Steven G. Louie, and G. Martinez
Phys. Rev. Lett. 108, 247401 – Published 13 June 2012; Erratum Phys. Rev. Lett. 108, 269901 (2012)
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Abstract

Precise infrared magnetotransmission experiments have been performed in magnetic fields up to 32 T on a series of multilayer epitaxial graphene samples. We observe changes in the spectral features and broadening of the main cyclotron transition when the incoming photon energy is in resonance with the lowest Landau level separation and the energy of a K point optical phonon. We have developed a theory that explains and quantitatively reproduces the frequency and magnetic field dependence of the phenomenon as the absorption of a photon together with the simultaneous creation of an intervalley, intra-Landau-level exciton, and a K phonon.

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  • Received 15 January 2012
  • Publisher error corrected 15 June 2012

DOI:https://doi.org/10.1103/PhysRevLett.108.247401

© 2012 American Physical Society

Corrections

15 June 2012

Erratum

Publisher’s Note: Resonant Excitation of Graphene K-Phonon and Intra-Landau-Level Excitons in Magneto-Optical Spectroscopy [Phys. Rev. Lett. 108, 247401 (2012)]

M. Orlita, Liang Z. Tan, M. Potemski, M. Sprinkle, C. Berger, W. A. de Heer, Steven G. Louie, and G. Martinez
Phys. Rev. Lett. 108, 269901 (2012)

Authors & Affiliations

M. Orlita1,2, Liang Z. Tan3, M. Potemski1, M. Sprinkle4, C. Berger4,5, W. A. de Heer4, Steven G. Louie3,*, and G. Martinez1

  • 1Laboratoire National des Champs Magntiques Intenses, CNRS-UJF-UPS-INSA, B.P. 166, 38042 Grenoble Cedex 9, France
  • 2Institute of Physics, Charles University, Ke Karlovu 5, CZ-121 16 Praha 2, Czech Republic
  • 3Department of Physics, University of California at Berkeley, and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, 94720, USA
  • 4School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
  • 5Institut Néel, CNRS-UJF B.P. 166, 38042 Grenoble Cedex 9, France

  • *Corresponding author.

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Issue

Vol. 108, Iss. 24 — 15 June 2012

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