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The European Physical Journal D

, Volume 45, Issue 3, pp 447–458 | Cite as

Hindered Coulomb explosion of embedded Na clusters — stopping, shape dynamics and energy transport

  • F. Fehrer
  • P. M. Dinh
  • M. Bär
  • P.-G. ReinhardEmail author
  • E. Suraud
Geometrical Structure and Dynamics

Abstract.

We investigate the dynamical evolution of a Na8 cluster embedded in Ar matrices of various sizes from N=30 to 1048. The system is excited by an intense short laser pulse leading to high ionization stages.We analyze the subsequent highly non-linear motion of cluster and Ar environment in terms of trajectories, shapes, and energy flow. The most prominent effects are: temporary stabilization of high charge states for several ps, sudden stopping of the Coulomb explosion of the embedded Na8 clusters associated with an extremely fast energy transfer to the Ar matrix, fast distribution of energy throughout the Ar layers by a sound wave. Other ionic-atomic transfer and relaxation processes proceed at slower scale of few ps. The electron cloud is almost thermally decoupled from ions and thermalizes far beyond the ps scale.

PACS.

36.40.Gk Plasma and collective effects in clusters 36.40.Mr Spectroscopy and geometrical structure of clusters 36.40.Sx Diffusion and dynamics of clusters 36.40.Vz Optical properties of clusters 

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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Authors and Affiliations

  • F. Fehrer
    • 1
  • P. M. Dinh
    • 2
  • M. Bär
    • 1
  • P.-G. Reinhard
    • 1
    Email author
  • E. Suraud
    • 2
  1. 1.Institut für Theoretische Physik, Universität ErlangenErlangenGermany
  2. 2.Laboratoire de Physique Théorique, Université P. SabatierToulouse CedexFrance

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