Curvature-induced D-band Raman scattering in folded grapheme

Awnish K. Gupta, Cristiano Nisoli, Paul E. Lammert, Vincent H. Crespi, Peter C. Eklund

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

Micro-Raman scattering from folds in single-layer graphene sheets finds a D-band at the fold for both incommensurate and commensurate folding, while the parent single-layer graphene lacks a D-band. A coupled elastic-continuum/tight- binding calculation suggests that this D-band arises from the spatially inhomogeneous curvature around a fold in a graphene sheet. The polarization dependence of the fold-induced D-band further reveals that the inhomogeneous curvature acts as a very smooth, ideal one-dimensional defect along the folding direction.

Original languageEnglish (US)
Article number334205
JournalJournal of Physics Condensed Matter
Volume22
Issue number33
DOIs
StatePublished - Aug 25 2010

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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