Spectroscopic Signatures of Electronic Excitations in Raman Scattering in Thin Films of Rhombohedral Graphite

Aitor García-ruiz, Sergey Slizovskiy, Marcin Mucha-Kruczynski, Vladimir I. Fal’ko

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Rhombohedral graphite features peculiar electronic properties, including persistence of low-energy surface bands of a topological nature. Here, we study the contribution of electron–hole excitations toward inelastic light scattering in thin films of rhombohedral graphite. We show that, in contrast to the featureless electron–hole contribution toward Raman spectrum of graphitic films with Bernal stacking, the inelastic light scattering accompanied by electron–hole excitations in crystals with rhombohedral stacking produces distinct features in the Raman signal which can be used both to identify the stacking and to determine the number of layers in the film.
Original languageEnglish
Pages (from-to)6152-6156
Number of pages5
JournalNano Letters
Volume19
Issue number9
Early online date30 Jul 2019
DOIs
Publication statusPublished - 11 Sep 2019

Keywords

  • Raman spectroscopy
  • Rhombohedral graphite
  • electronic Raman scattering
  • graphene
  • optical absorption
  • stacking-dependent properties

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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