Journal Articles Physical Review B: Condensed Matter and Materials Physics (1998-2015) Year : 2009

Reply to "Comment on 'Raman spectra of misoriented bilayer graphene' "

A. Ayari

Abstract

In their Comment, Ni et al. show new data as supporting their hypothesis, i. e., the two-dimensional band blueshift between graphene and misoriented bilayer is caused by a reduction in the Fermi velocity. In the first part of our reply, we will demonstrate that the exhibited data, which typically shows a constant blueshift for various excitation energies are in contradiction with a change in Fermi velocity. In the second part we will explain how charge transfer from the substrate that affects the phonon-dispersion curve can account for the observed discrepancies and how this hypothesis is supported by experimental observations.
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Dates and versions

hal-00496519 , version 1 (30-06-2010)

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Philippe Poncharal, A. Ayari, Thierry Michel, Jean-Louis Sauvajol. Reply to "Comment on 'Raman spectra of misoriented bilayer graphene' ". Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2009, 79, pp.237402. ⟨10.1103/PhysRevB.79.237402⟩. ⟨hal-00496519⟩
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