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Strongly Coupled Optical Phonons in the Ultrafast Dynamics of the Electronic Energy and Current Relaxation in Graphite
Open accessAbstract
Ultrafast charge carrier dynamics in graphite has been investigated by time-resolved terahertz spectroscopy. Analysis of the transient dielectric function and model calculations show that more than 90% of the initially deposited excitation energy is transferred to a few strongly coupled lattice vibrations within 500 fs. These hot optical phonons also substantially contribute to the striking increase of the Drude relaxation rate observed during the first picosecond after photoexcitation. The subsequent cooling of the hot phonons yields a lifetime estimate of 7 ps for these modes.
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Cites
Generation and field-resolved detection of femtosecond electromagnetic pulses tunable up to 41 THz
Huber, R., Brodschelm, A., Tauser, F., & Leitenstorfer, A. (2000) · Applied Physics Letters · doi:10.1063/1.126625 · Cited by 413
Cited by
A graphene-based broadband optical modulator
Liu, M., Yin, X., Ulin-Avila, E., Geng, B., Zentgraf, T., Ju, L., Wang, F., & Zhang, X. (2011) · Nature · doi:10.1038/nature10067 · Cited by 3,395
Terahertz spectroscopy and imaging - Modern techniques and applications
Jepsen, P. U., Cooke, D. G., & Koch, M. (2011) · Laser & Photonics Reviews · doi:10.1002/lpor.201000011 · Cited by 2,091
Carrier dynamics in semiconductors studied with time-resolved terahertz spectroscopy
Ulbricht, R., Hendry, E., Shan, J., Heinz, T. F., & Bonn, M. (2011) · Reviews of Modern Physics · doi:10.1103/revmodphys.83.543 · Cited by 1,293
Electronic Cooling in Graphene
Bistritzer, R., & MacDonald, A. H. (2009) · Physical Review Letters · doi:10.1103/physrevlett.102.206410 · Cited by 304
Dirac electronic states in graphene systems: optical spectroscopy studies
Orlita, M., & Potemski, M. (2010) · Semiconductor Science and Technology · doi:10.1088/0268-1242/25/6/063001 · Cited by 183
Metadata
- Authors
- Kampfrath, T., Perfetti, L., Schapper, F., Frischkorn, C., & Wolf, M.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2005-10-26
- Volume
- 95
- Issue
- 18
- Pages
- 187403-187403
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2039263329
- Cited by
- 367
- References
- 1
- FWCI
- 13.98
- Type
- journal article
- Language
- en
- Open access
- green
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- Kampfrath, T., Perfetti, L., Schapper, F., Frischkorn, C., & Wolf, M. (2005). Strongly Coupled Optical Phonons in the Ultrafast Dynamics of the Electronic Energy and Current Relaxation in Graphite. Physical Review Letters. https://doi.org/10.1103/physrevlett.95.187403
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
