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Coherent THz Phonons Driven by Light Pulses and the Sb Problem: What is the Mechanism?
Abstract
Femtosecond laser pulses generate in Sb coherent ${E}_{g}$ phonons at $\ensuremath{\approx}3.4\mathrm{THz}$, in addition to oscillations of ${A}_{1g}$ symmetry accounted for by the phenomenological displacive-excitation model. Experiments agree with theoretical calculations showing that the coherent driving force in absorbing materials like Sb is determined by Raman processes, as in transparent media. The Raman formalism provides a unifying approach for describing light-induced motion of atoms of both impulsive and displacive character.
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Cited by
Temporal and spectral fingerprints of ultrafast all-coherent spin switching
Schlauderer, S., Lange, C., Baierl, S., Ebnet, T., Schmid, C. P., Valovcin, D. C., Zvezdin, A. K., Kimel, A. V., Mikhaylovskiy, R. V., & Huber, R. (2019) · Nature · doi:10.1038/s41586-019-1174-7 · Cited by 248
Metadata
- Authors
- Garrett, G. A., Albrecht, T. F., Whitaker, J. F., & Merlin, R.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1996-10-21
- Volume
- 77
- Issue
- 17
- Pages
- 3661-3664
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2010967328
- Cited by
- 266
- References
- 0
- FWCI
- 2.64
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Coherent THz Phonons Driven by Light Pulses and the Sb Problem: What is the Mechanism? https://app.cochat.ai/papers/10.1103/physrevlett.77.3661
- The paper
- Garrett, G. A., Albrecht, T. F., Whitaker, J. F., & Merlin, R. (1996). Coherent THz Phonons Driven by Light Pulses and the Sb Problem: What is the Mechanism? Physical Review Letters. https://doi.org/10.1103/physrevlett.77.3661
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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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