The DOI matches its Crossref record; 40 of the 40 references it cites were found in a registry or an index.
Intervalley scattering by acoustic phonons in two-dimensional MoS2 revealed by double-resonance Raman spectroscopy
Open accessAbstract
Double-resonance Raman scattering is a sensitive probe to study the electron-phonon scattering pathways in crystals. For semiconducting two-dimensional transition-metal dichalcogenides, the double-resonance Raman process involves different valleys and phonons in the Brillouin zone, and it has not yet been fully understood. Here we present a multiple energy excitation Raman study in conjunction with density functional theory calculations that unveil the double-resonance Raman scattering process in monolayer and bulk MoS 2. Results show that the frequency of some Raman features shifts when changing the excitation energy, and first-principle simulations confirm that such bands arise from distinct acoustic phonons, connecting different valley states. The double-resonance Raman process is affected by the indirect-to-direct bandgap transition, and a comparison of results in monolayer and bulk allows the assignment of each Raman feature near the M or K points of the Brillouin zone. Our work highlights the underlying physics of intervalley scattering of electrons by acoustic phonons, which is essential for valley depolarization in MoS 2.
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Cites
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Cited by
Suppression of magnetic ordering in XXZ-type antiferromagnetic monolayer NiPS3
Kim, K., Lim, S. Y., Lee, J.-U., Lee, S., Kim, T. Y., Park, K., Jeon, G. S., Park, C.-H., Park, J.-G., & Cheong, H. (2019) · Nature Communications · doi:10.1038/s41467-018-08284-6 · Cited by 452
Zhu, H., Yi, J., Li, M.-Y., Xiao, J., Zhang, L., Yang, C.-W., Kaindl, R. A., Li, L.-J., Wang, Y., & Zhang, X. (2018) · Science · doi:10.1126/science.aar2711 · Cited by 429
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Metadata
- Authors
- Carvalho, B. R., Wang, Y., Mignuzzi, S., Roy, D., Terrones, M., Fantini, C., Crespi, V. H., Malard, L. M., & Pimenta, M. A.
- Venue
- Nature Communications
- Published
- 2017-03-09
- Volume
- 8
- Issue
- 1
- Pages
- 14670-14670
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2594733919
- Cited by
- 283
- References
- 40
- FWCI
- 12.65
- Type
- journal article
- Language
- en
- Open access
- gold
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- Carvalho, B. R., Wang, Y., Mignuzzi, S., Roy, D., Terrones, M., Fantini, C., Crespi, V. H., Malard, L. M., & Pimenta, M. A. (2017). Intervalley scattering by acoustic phonons in two-dimensional MoS2 revealed by double-resonance Raman spectroscopy. Nature Communications. https://doi.org/10.1038/ncomms14670
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