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This study investigates the resonance Raman spectroscopy of twisted bilayer graphene (TBG) samples with varying twisting angles from 0° to 30°. The findings reveal significant G band enhancement for twisting angles between 9° and 17°, while no enhancement is observed for angles below 9° or above 17°, indicating that van Hove singularities are linked to the Moiré pattern rather than the commensurate superlattice structure. Additionally, the intensity ratio of the G band in TBG to single-layer graphene is con

Author

Luis Cardenas

Language

EN