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

Journal Article (Journal Article)

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.

Full Text

Duke Authors

Cited Authors

  • Binder, R; Roberts, AT; Kwong, NH; Sandhu, A; Everitt, HO

Published Date

  • February 8, 2016

Published In

Volume / Issue

  • 93 / 8

Electronic International Standard Serial Number (EISSN)

  • 2469-9969

International Standard Serial Number (ISSN)

  • 2469-9950

Digital Object Identifier (DOI)

  • 10.1103/PhysRevB.93.085414

Citation Source

  • Scopus