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Resonant Raman scattering in molybdenum disulfide (MoS2) is studied as a function of the structure thickness. Optical emission from bulk, three-, two-, and one- monolayer MoS2 is studied both at room and at liquid helium temperature. The quenching of peaks due to second-order processes was observed and attributed to the effect of the substrate on the lattice dynamics in MoS2. The experimental results...
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