Dynamics of an argon cluster following impulsive excitation studied by molecular-dynamics simulation

Akira Terasaki, Tamotsu Kondow

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Molecular-dynamics simulation is presented for an argon cluster, Ar2057, excited impulsively via instantaneous kinetic-energy deposition to constituent atoms in a hemispherical region. A critical energy is found for the fragmentation process of an unexcited volume of the cluster, above which fission is induced, whereas ejection of atoms predominates below this threshold energy. The fission process is shown to be accompanied by a shock wave propagating across the cluster. This simulation provides a qualitative model for the disintegration dynamics of a liquid micro-droplet excited by a mid-infrared laser pulse tuned to strong absorption [A. Terasaki, J. Phys. Chem. A 111 (2007) 7671].

Original languageEnglish
Pages (from-to)57-61
Number of pages5
JournalChemical Physics Letters
Volume474
Issue number1-3
DOIs
Publication statusPublished - May 25 2009
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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