Twisted MoSe₂ Bilayers with Variable Local Stacking and Interlayer Coupling Revealed by Low-Frequency Raman Spectroscopy.

Abstract

Unique twisted bilayers of MoSe2 with multiple stacking orientations and interlayer couplings in the narrow range of twist angles, 60 ± 3°, are revealed by low-frequency Raman spectroscopy and theoretical analysis. The slight deviation from 60° allows the concomitant presence of patches featuring all three high-symmetry stacking configurations (2H or AA… (More)
DOI: 10.1021/acsnano.5b07807

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