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Infrared and Raman Studies of Long-Wavelength Optical Phonons in Hexagonal MoS2
Abstract
Infrared and Raman measurements of lattice vibrations in hexagonal Mo${\mathrm{S}}_{2}$ have been made over the combined range 20-4000 ${\mathrm{cm}}^{\ensuremath{-}1}$. Two infrared-active modes at 384 and 470 ${\mathrm{cm}}^{\ensuremath{-}1}$ and three Raman-active modes at 287, 383, and 409 ${\mathrm{cm}}^{\ensuremath{-}1}$ have been observed. Classical dielectric oscillators are fitted to the reflectivity data, which are also analyzed by means of the Kramers-Kronig relations. The degeneracy of the ${E}_{1u}$ and ${E}_{2g}^{1}$ modes is interpreted as indicating that the layer-layer interaction is weak. All 15 optical modes are assigned to irreducible representations and their frequencies tabulated or predicted.
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Cited by
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Benck, J. D., Chen, Z., Kuritzky, L. Y., Forman, A. J., & Jaramillo, T. F. (2012) · ACS Catalysis · doi:10.1021/cs300451q · Cited by 1,091
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Metadata
- Authors
- Wieting, T. J., & Verble, J. L.
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 1971-06-15
- Volume
- 3
- Issue
- 12
- Pages
- 4286-4292
- ISSN
- 0556-2805 (ISSN-L)
- OpenAlex
- W2085895639
- Cited by
- 442
- References
- 0
- FWCI
- 6.87
- Type
- journal article
- Language
- en
- Open access
- closed
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- Wieting, T. J., & Verble, J. L. (1971). Infrared and Raman Studies of Long-Wavelength Optical Phonons in Hexagonal MoS2. Physical Review B. https://doi.org/10.1103/physrevb.3.4286
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