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Ultrafast structural transformations in graphite

  • S. I. Ashitkov
  • M. B. Agranat
  • P. S. Kondratenko
  • S. I. Anisimov
  • V. E. Fortov
  • V. V. Temnov
  • K. Sokolowski-Tinten
  • P. Zhou
  • D. von der Linde
Condensed Matter

Abstract

Femtosecond laser-induced structural transitions in graphite were studied by time-resolved optical anisotropy measurements. The decay of the anisotropic reflectivity seems to indicate a loss of long-range order on a subpicosecond time scale, which is much faster than the electron-phonon relaxation time. This observation confirms the nonthermal nature of the structural transition.

PACS numbers

64.70.Kb 61.80.Ba 61.50.Ks 

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Copyright information

© MAIK "Nauka/Interperiodica" 2002

Authors and Affiliations

  • S. I. Ashitkov
    • 1
  • M. B. Agranat
    • 1
  • P. S. Kondratenko
    • 1
  • S. I. Anisimov
    • 1
  • V. E. Fortov
    • 1
  • V. V. Temnov
    • 2
  • K. Sokolowski-Tinten
    • 2
  • P. Zhou
    • 2
  • D. von der Linde
    • 2
  1. 1.Institute of High Energy Density, Joint Institute for High TemperaturesRussian Academy of SciencesMoscowRussia
  2. 2.Institute for Laser and Plasma PhysicsUniversity of EssenEssenGermany

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