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  • 34.50  (1)
  • 36.40.+d  (1)
  • 71.10.+x  (1)
  • PACS. 36.40.Wa Charged clusters – 34.50.Bw Energy loss and stopping power  (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
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  • 2
    ISSN: 1434-6079
    Keywords: PACS. 36.40.Wa Charged clusters – 34.50.Bw Energy loss and stopping power
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: In an experimental study, the multi-ionisation of metallic clusters (Nan) has been analysed in collisions with light ions in low charge states (H+, He+, He2+, O3+) at collision velocities below 1 a.u. Cluster ions are produced in charge states up to 5+. The average charge of the nano-particles is found to increase linearly with the variation of projectile velocity and the square of the effective projectile charge, well in agreement with the electronic stopping power of the bulk material. A fraction of 50% to 30% of the total projectile energy loss (decreasing with velocity) is transferred into vibrational modes in good agreement with recent theoretical predictions.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 28 (1993), S. 81-85 
    ISSN: 1434-6079
    Keywords: 71.10.+x ; 36.40.+d ; 31.10.+z
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The optical response of alkali metal clusters is shown to be sensitive to a proper treatment of the electronion interaction and to the ionic spatial structure. A spherical symmetry model based on a combination of a geometrical optimization of the ionic structure and the random phase approximation (RPA) with exact exchange is applied to calculate the optical response of Li 139 + . The optical response obtained within this model is in good agreement with the measured giant dipole resonance.
    Type of Medium: Electronic Resource
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