Optical signature of symmetry variations and spin-valley coupling in atomically thin tungsten dichalcogenides

We report systematic optical studies of WS(2) and WSe(2) monolayers and multilayers. The efficiency of second harmonic generation shows a dramatic even-odd oscillation with the number of layers, consistent with the presence (absence) of inversion symmetry in even-layer (odd-layer). Photoluminescence...

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Detalles Bibliográficos
Autores principales: Zeng, Hualing, Liu, Gui-Bin, Dai, Junfeng, Yan, Yajun, Zhu, Bairen, He, Ruicong, Xie, Lu, Xu, Shijie, Chen, Xianhui, Yao, Wang, Cui, Xiaodong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2013
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3622914/
https://www.ncbi.nlm.nih.gov/pubmed/23575911
http://dx.doi.org/10.1038/srep01608

Internet

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3622914/
https://www.ncbi.nlm.nih.gov/pubmed/23575911
http://dx.doi.org/10.1038/srep01608

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