Extended Data Fig. 1: Raman spectra of tBLG samples.
From: Observation of chiral and slow plasmons in twisted bilayer graphene

R’ peaks are observed in all samples from 0.8 to 21.8 degree.
From: Observation of chiral and slow plasmons in twisted bilayer graphene

R’ peaks are observed in all samples from 0.8 to 21.8 degree.