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  Ultrafast nonequilibrium carrier dynamics in a single graphene layer

Breusing, M., Kuehn, S., Winzer, T., Malić, E., Milde, F., Severin, N., et al. (2011). Ultrafast nonequilibrium carrier dynamics in a single graphene layer. Physical Review B, 83(15): 153410. doi:10.1103/PhysRevB.83.153410.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000B-5D0B-2 Version Permalink: https://hdl.handle.net/21.11116/0000-000D-0907-2
Genre: Journal Article

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PhysRevB.83.153410.pdf (Publisher version), 276KB
 
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 Creators:
Breusing, M., Author
Kuehn, S., Author
Winzer, T., Author
Malić, E., Author
Milde, F., Author
Severin, N., Author
Rabe, J.P., Author
Ropers, Claus1, Author                 
Knorr, A., Author
Elsaesser, T., Author
Affiliations:
1Department of Ultrafast Dynamics, MPI for Biophysical Chemistry, Max Planck Society, Göttingen, DE, ou_3371855              

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 Abstract: Nonequilibrium carrier dynamics in single exfoliated graphene layers on muscovite substrates are studied by ultrafast optical pump-probe spectroscopy and compared with microscopic theory. The very high 10-fs-time resolution allows for mapping the ultrafast carrier equilibration into a quasi-Fermi distribution and the subsequent slower relaxation stages. Coulomb-mediated carrier-carrier and carrier-optical phonon scattering are essential for forming hot separate Fermi distributions of electrons and holes which cool by intraband optical phonon emission. Carrier cooling and recombination are influenced by hot phonon effects.

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Language(s): eng - English
 Dates: 2011
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevB.83.153410
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 83 (15) Sequence Number: 153410 Start / End Page: - Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008