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  • 03.65.Sq  (2)
  • 24.10.Ht  (1)
  • 1
    Electronic Resource
    Electronic Resource
    A simple semiclassical model for ionic structure effects in large metal clusters (1990)
    Springer
    The European physical journal 17 (1990), S. 225-229 
    Details
    ISSN: 1434-6079
    Keywords: 31.20.Sy ; 03.65.Sq
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A semiclassical version of the density functional approach is used to investigate the structure of metal clusters. The effect of the ionic structure is included in a schematical way, assuming that the ions are distributed on concentric shells. The method, which allows a simultaneous investigation of geometrical and electronic effects, is computationally very simple and can be extended up to very large cluster sizes. Predictions of this model in the medium size range are compared with the results of available microscopic calculations, yielding a very good agreement.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01437902
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Semiclassical variational calculation of liquid-drop model coefficients for metal clusters (1991)
    Springer
    The European physical journal 19 (1991), S. 101-103 
    Details
    ISSN: 1434-6079
    Keywords: 36.40. +d ; 31.20.Lr ; 31.20.Sy ; 03.65.Sq
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We report on semiclassical density variational calculations for spherical alkali metal clusters in the jellium model. We derive liquid-drop model expansions for total energy, ionisation potential and electron affinity and test the coefficients numerically for clusters with up toN=105 atoms. From the limitN→∞, we obtain excellent agreement with surface tensions and work functions evaluated for an infinite plane metal surface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01448265
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The absorptive part of the nucleus-nucleus potential in a semiclassical approach (1987)
    Springer
    The European physical journal 328 (1987), S. 431-444 
    Details
    ISSN: 1434-601X
    Keywords: 24.10.Ht ; 25.70.Cd
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The imaginary part of the optical potential for nuclear ion-ion scattering in the energy range 20 MeV ≲E/A ≲ 200 MeV is derived using Feshbach's projection formalism. It is defined as the effective absorptive potential in the projected one-body Schroedinger equation for the relative motion of the colliding nuclei. Calculations are done in the Thomas-Fermi approximation, which accounts in a simple way for all phase-space effects as well as for the finite size of the ions. Intrinsic excitations are considered to be of one particle — one hole type in either of the ions, the other remaining in its ground state. The effective two-body interaction is taken to be of finite range. Further simplifications of the model consist in neglecting antisymmetrization between the mutual wave functions of the two ions and in the omission of the Coulomb energy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01289629
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    Paper (German National Licenses)
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