Modification of interlayer interaction in bilayer MoS2 due to monolayer WSe2 in heterostructures
Siwon Oh,
Han-gyu Kim,
Jungcheol Kim
et al.
Abstract:The low-frequency interlayer vibration modes in bilayer-MoS2/monolayer-WSe2 heterostructures were investigated to study the modification of interlayer interactions due to the moiré periodicity. The interplay of the interlayer interaction within bilayer MoS2 and the interfacial interaction between the two materials results in rich features in the phonon spectra. Several shear and breathing modes are observed for samples with small twist angles (<10°), whereas only one shear and two breathing modes are observ… Show more
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