Hot electron relaxation and phonon dynamics in graphene

  • Butscher S
  • Milde F
  • Hirtschulz M
 et al. 
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Abstract

Using density-matrix theory, we microscopically calculate the relaxation
dynamics of photoexcited electrons in graphene. Electron-phonon coupling
leads to an initially ultrafast energy dissipation and to a nonthermal
phonon occupation of the highest optical phonon modes. We also calculate
the temporal evolution of the electronic temperature and find good
agreement with recent experimental work. (c) 2007 American Institute
of Physics.

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Authors

  • S. Butscher

  • F. Milde

  • M. Hirtschulz

  • E. Malić

  • A. Knorr

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