Global k -space analysis of electron-phonon interaction in graphene and application to M -point spectroscopy

Rudolf Binder, Adam T. Roberts, Nai-Hang Kwong, Arvinder Singh Sandhu, Henry O. Everitt

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Recently, optical probes have become available that can access and observe energy renormalization due to electron-phonon interaction in graphene away from the well-studied Dirac K point. Using an expanded deformation potential approach, we present a theoretical study of the electron-phonon self-energy and scattering matrix elements across the entire Brillouin zone. We elucidate the roles of modulated hopping and conventional deformation potential coupling, parameterized via standard deformation potentials, the in-plane phonon modes, intra- and interband contributions, and umklapp processes. Applying the theory to nonlinear optical transmission spectroscopy in the vicinity of the M point, we find very good agreement with recently published experimental data.

Original languageEnglish (US)
Article number085414
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume93
Issue number8
DOIs
StatePublished - Feb 8 2016

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

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