Apparent breakdown of Raman selection rule at valley exciton resonances in monolayer MoS2

The valley degree of freedom in atomically thin transition metal dichalcogenides (TMDCs) has generated great interest due to the possibility of using it to store and control information in analogy to the spin degree of freedom in spintronics. A signature of the valley pseudospin is the selective cou...

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Veröffentlicht in:	Physical review. B 2017-04, Vol.95 (16), p.165417
Hauptverfasser:	Drapcho, Steven G, Kim, Jonghwan, Hong, Xiaoping, Jin, Chenhao, Shi, Sufei, Tongay, Sefaattin, Wu, Junqiao, Wang, Feng
Format:	Artikel
Sprache:	eng
Schlagworte:	Circular polarization Coupling Degrees of freedom Excitation Excitation spectra Excitons Helicity Molybdenum disulfide Phonons Photons Raman spectra Resonance scattering Selectivity Spintronics Transition metal compounds
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