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Low-frequency modes in vitreous silica
Abstract
Measurements of the elastic and inelastic neutron scattering from vitreous silica in the frequency range 0.3 to 4 THz and with scattering vectors in the range 0.2 to 5.3 A${\r{}}^{\mathrm{\ensuremath{-}}1}$ are analyzed in conjunction with heat-capacity measurements on the same samples to provide a microscopic description of low-frequency vibrational modes. The results show that additional harmonic excitations coexist with sound waves below 1 THz, and that these excitations correspond to relative rotation of ${\mathrm{SiO}}_{4}$ tetrahedra.
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Citations
Cited by
Phillips, W. A. (1987) · Reports on Progress in Physics · doi:10.1088/0034-4885/50/12/003 · Cited by 885
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Erlebach, A., Nachtigall, P., & Grajciar, L. (2022) · npj Computational Materials · doi:10.1038/s41524-022-00865-w · Cited by 58
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Cahill, D. G., & Pohl, R. O. (1988) · Physical Review B · doi:10.1103/physrevb.37.8773 · Cited by 52
Metadata
- Authors
- Buchenau, U., Prager, M., Nücker, N., Dianoux, A. J., Ahmad, N., & Phillips, W. A.
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 1986-10-15
- Volume
- 34
- Issue
- 8
- Pages
- 5665-5673
- ISSN
- 0163-1829 (ISSN-L)
- OpenAlex
- W2076481559
- Cited by
- 564
- References
- 0
- FWCI
- 31.78
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Low-frequency modes in vitreous silica. https://app.cochat.ai/papers/10.1103/physrevb.34.5665
- The paper
- Buchenau, U., Prager, M., Nücker, N., Dianoux, A. J., Ahmad, N., & Phillips, W. A. (1986). Low-frequency modes in vitreous silica. Physical Review B. https://doi.org/10.1103/physrevb.34.5665
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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