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Raman spectroscopy of graphene at high pressure: substrate and pressure transmitting media effects
K. Filintoglou, N. Papadopoulos, J. Arvanitidis +7
The pressure evolution of the Raman spectrum of graphene grown by chemical vapour deposition on polycrystalline copper is investigated with the use of a polar and a non-polar press…
Phonon and structural changes in deformed Bernal stacked bilayer graphene
Otakar Frank, Milan Bousa, Ibtsam Riaz +7
We present the first Raman spectroscopic study of Bernal bilayer graphene flakes under uniaxial tension. Apart from a purely mechanical behavior in flake regions where both layers…
Raman 2D-Band Splitting in Graphene: Theory and Experiment
Otakar Frank, Marcel Mohr, Janina Maultzsch +9
We present a systematic experimental and theoretical study of the two-phonon (2D) Raman scattering in graphene under uniaxial tension. The external perturbation unveils that the 2D…
Subjecting a graphene monolayer to tension and compression
Georgia Tsoukleri, John Parthenios, Konstantinos Papagelis +5
The mechanical behaviour of graphene flakes under both tension and compression is examined using a cantilever-beam arrangement. Two different sets of samples were employed involvin…