The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.
Microscopic theory of absorption and ultrafast many-particle kinetics in graphene
Abstract
We investigate the relaxation kinetics of optically excited charge carriers in graphene focusing on the time-, momentum-, and angle-resolved interplay between carrier-carrier and carrier-phonon scattering channels. To benchmark the theoretical approach, we first discuss the linear absorption spectrum of graphene. In agreement with recent experimental results, our calculations reveal: (i) a pronounced excitonic effect at the saddle point, (ii) a constant absorbance in the visible region, and (iii) a drop-off for energies close to the Dirac point. After a nonlinear optical excitation, we observe that $\ensuremath{\Gamma}$-LO phonons efficiently and quickly redistribute the initially highly anisotropic nonequilibrium carrier distribution. In contrast, Coulomb-induced carrier relaxation is preferably carried out directly toward the Dirac point leading to an ultrafast thermalization of the carrier system. We evaluate the temporal dynamics of optical and acoustic phonons and discuss the energy dissipation arising from phonon-induced intra- and interband scattering. Furthermore, we investigate the influence of diagonal and off-diagonal many-particle dephasing on the ultrafast carrier relaxation dynamics. The gained insights contribute to a better microscopic understanding of optical and electronic properties of graphene.
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Cites
Geim, A. K., & Novoselov, K. S. (2007) · Nature Materials · doi:10.1038/nmat1849 · Cited by 39,979
The electronic properties of graphene
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Fine Structure Constant Defines Visual Transparency of Graphene
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Graphene photonics and optoelectronics
Bonaccorso, F., Sun, Z., Hasan, T., & Ferrari, A. C. (2010) · Nature Photonics · doi:10.1038/nphoton.2010.186 · Cited by 7,726
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Photodetectors based on graphene, other two-dimensional materials and hybrid systems
Koppens, F. H. L., Mueller, T., Avouris, P., Ferrari, A. C., Vitiello, M. S., & Polini, M. (2014) · Nature Nanotechnology · doi:10.1038/nnano.2014.215 · Cited by 3,828
Photocurrent measurements of supercollision cooling in graphene
Graham, M. W., Shi, S.-F., Ralph, D. C., Park, J., & McEuen, P. L. (2013) · Nature Physics · doi:10.1038/nphys2493 · Cited by 337
Echtermeyer, T. J., Nene, P. S., Trushin, M., Gorbachev, R. V., Eiden, A. L., Milana, S., Sun, Z., Schliemann, J., Lidorikis, E., Novoselov, K. S., et al. (2014) · Nano Letters · doi:10.1021/nl5004762 · Cited by 188
Metadata
- Authors
- Malic, E., Winzer, T., Bobkin, E., & Knorr, A.
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 2011-11-10
- Volume
- 84
- Issue
- 20
- ISSN
- 1098-0121 (ISSN-L)
- 1550-235X
- OpenAlex
- W2318985135
- Cited by
- 294
- References
- 36
- FWCI
- 10.84
- Type
- journal article
- Language
- en
- Open access
- closed
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- Malic, E., Winzer, T., Bobkin, E., & Knorr, A. (2011). Microscopic theory of absorption and ultrafast many-particle kinetics in graphene. Physical Review B. https://doi.org/10.1103/physrevb.84.205406
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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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