Graphite from the viewpoint of Landau level spectroscopy: An effective graphene bilayer and monolayer

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dc.creatorOrlita, M.
dc.creatorFaugeras, C.
dc.creatorSchneider, J. M.
dc.creatorMartinez, G.
dc.creatorMaude, D. K.
dc.creatorPotemski, M.
dc.date2009-01-27
dc.date.accessioned2026-07-07T13:05:30Z
dc.date.available2026-07-07T13:05:30Z
dc.descriptionWe describe an infrared transmission study of a thin layer of bulk graphite in magnetic fields up to B = 34 T. Two series of absorption lines whose energy scales as sqrtB and B are present in the spectra and identified as contributions of massless holes at the H point and massive electrons in the vicinity of the K point, respectively. We find that the optical response of the K point electrons corresponds, over a wide range of energy and magnetic field, to a graphene bilayer with an effective inter-layer coupling 2γ_1, twice the value for a real graphene bilayer, which reflects the crystal ordering of bulk graphite along the c-axis. The K point electrons thus behave as massive Dirac fermions with a mass enhanced twice in comparison to a true graphene bilayer.
dc.description4 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/0901.4215
dc.identifierhttp://arxiv.org/abs/0901.4215
dc.identifierPhys. Rev. Lett. 102, 166401 (2009)
dc.identifierdoi:10.1103/PhysRevLett.102.166401
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/227507
dc.subjectMesoscale and Nanoscale Physics
dc.subjectOther Condensed Matter
dc.titleGraphite from the viewpoint of Landau level spectroscopy: An effective graphene bilayer and monolayer
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