Probing interlayer coupling in twisted single-crystal bilayer graphene by Raman spectroscopy Yeh, Chao-Hui ; Lin, Yung-Chang ; Nayak, Pramoda K. ; Lu, Chun-Chieh ; Liu, Zheng ; Suenaga, Kazu ; Chiu, Po-Wen Abstract Publication: Journal of Raman Spectroscopy Pub Date: October 2014 DOI: 10.1002/jrs.4571 Bibcode: 2014JRSp...45..912Y