Determining the Twist Angle of Bilayer Graphene by Machine Learning Analysis of its Raman Spectrum

  title={Determining the Twist Angle of Bilayer Graphene by Machine Learning Analysis of its Raman Spectrum},
  author={Pablo Sol'is-Fern'andez and Hiroki Ago},
With the increasing interest in twisted bilayer graphene (tBLG) of the past years, fast, reliable, and non-destructive methods to precisely determine the twist angle are required. Raman spectroscopy potentially provides such method, given the large amount of information about the state of the graphene that is encoded in its Raman spectrum. However, changes in the Raman spectra induced by the stacking order can be very subtle, thus making the angle identification tedious. In this work, we… 

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