{ "id": "1603.05172", "version": "v1", "published": "2016-03-16T16:47:23.000Z", "updated": "2016-03-16T16:47:23.000Z", "title": "Resonance effects in the Raman scattering of mono- and few layers MoSe$_2$", "authors": [ "P. Soubelet", "A. E. Bruchhausen", "A. Fainstein", "K. Nogajewski", "C. Faugeras" ], "comment": "9 Figures, 9 pages", "categories": [ "cond-mat.mes-hall" ], "abstract": "Using resonant Raman scattering spectroscopy with 25 different laser lines, we describe the Raman scattering spectra of mono- and multi-layers 2H-molybdenum diselenide (MoSe$_2$) as well as the different resonances affecting the most pronounced features. For high-energy phonons, both A- and E- symmetry type phonons present resonances with A and B excitons of MoSe$_2$ together with a marked increase of intensity when exciting at higher energy, close to the C exciton energy. We observe symmetry dependent exciton-phonon coupling affecting mainly the low-energy rigid layer phonon modes. The shear mode for multilayer displays a pronounced resonance with the C exciton while the breathing mode has an intensity that grows with the excitation laser energy, indicating a resonance with electronic excitations at energies higher than that of the C exciton.", "revisions": [ { "version": "v1", "updated": "2016-03-16T16:47:23.000Z" } ], "analyses": { "keywords": [ "raman scattering", "resonance effects", "layers mose", "low-energy rigid layer phonon modes", "dependent exciton-phonon coupling affecting" ], "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable" } } }