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  • 34.50  (1)
  • 36.40  (1)
  • PACS. 36.40.Qv Stability and fragmentation of clusters – 36.40.Wa Charged clusters  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 33 (1995), S. 289-293 
    ISSN: 1434-6079
    Keywords: 36.40 ; 34.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The electronic energy loss of a positively charged projectile passing through a sodium cluster is calculated by the semiclassical Vlasov method. The electron density before impact is obtained within the localdensity approximation in the jellium model. For the dynamical response, the Vlasov equations are solved by test particle discretization. The model gives the correct breathing mode and dipole Mie frequencies. The energy deposit is calculated as a function of projectile velocity, charge and impact parameter and is compared with theoretical and tabulated values for bulk sodium.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 23 (2003), S. 359-368 
    ISSN: 1434-6079
    Keywords: PACS. 36.40.Qv Stability and fragmentation of clusters – 36.40.Wa Charged clusters
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: Stability of highly charged metal clusters in the electric field of an external ion is investigated with the classical liquid drop model. We study the optimum shape of the cluster which has a local minimum of the total energy, taking account of the effects of the surface charge polarization on the Coulomb energy and the cluster deformation on the surface energy. We find that the cluster deformation greatly affects the total energy of the system and that a cluster with a fissility larger than some critical value 0.7-0.8 can become unstable against deformation. We investigate the local competition between the Coulomb force and the surface tension at the cluster surface and show that the surface charge polarization which is induced by the external electric field significantly affects the shape of the cluster and its stability.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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