Influence of misorientation on graphene Moiré patterns

Marie Smirman, Doaa Taha, Arunima K. Singh, Zhi Feng Huang, K. R. Elder

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In this work the influence of film-substrate misorientation on the strain-induced ordering of graphene films on various metallic surfaces is examined using a mesoscopic continuum model and first-principles atomistic calculations. The periodicity and free energy of the Moiré patterns that emerge are studied as a function of film-substrate adhesion strength for misfit strains far from and close to an incommensurate-commensurate phase transition. Interestingly the lowest energy states are found to be at small but finite misorientation even though these states have a higher domain wall density than the zero-misorientation states. First-principles density functional theory calculations are used to connect the results with experimental findings in graphene epitaxy. This combination of mesoscopic and atomistic approaches can be applied to the study of a wide range of strained 2D material systems including the III-nitride monolayer systems.

Original languageEnglish (US)
Article number085407
JournalPhysical Review B
Volume95
Issue number8
DOIs
StatePublished - Feb 7 2017
Externally publishedYes

Fingerprint

Graphite
misalignment
Graphene
graphene
Bond strength (materials)
Domain walls
Substrates
Epitaxial growth
Nitrides
epitaxy
Electron energy levels
Free energy
Density functional theory
nitrides
domain wall
periodic variations
Monolayers
adhesion
Phase transitions
free energy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Influence of misorientation on graphene Moiré patterns. / Smirman, Marie; Taha, Doaa; Singh, Arunima K.; Huang, Zhi Feng; Elder, K. R.

In: Physical Review B, Vol. 95, No. 8, 085407, 07.02.2017.

Research output: Contribution to journalArticle

Smirman, Marie ; Taha, Doaa ; Singh, Arunima K. ; Huang, Zhi Feng ; Elder, K. R. / Influence of misorientation on graphene Moiré patterns. In: Physical Review B. 2017 ; Vol. 95, No. 8.
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