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  • 1995-1999  (2)
  • 1999  (1)
  • 1995  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Energy transfer in collisions of alkali-metal clusters and ions (1995)
    Springer
    The European physical journal 33 (1995), S. 289-293 
    Details
    ISSN: 1434-6079
    Schlagwort(e): 36.40 ; 34.50
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01437509
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  • 2
    Digitale Medien
    Digitale Medien
    Static electric dipole polarizabilities of alkali clusters (1999)
    Springer
    The European physical journal 9 (1999), S. 243-248 
    Details
    ISSN: 1434-6079
    Schlagwort(e): PACS: 36.40.-c Atomic and molecular clusters – 32.10.Dk Electric and magnetic moments, polarizability – 31.15.Ew Density functional theory
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract. We have measured the static dipole polarizability of lithium and sodium clusters (n=1-22). Values measured for sodium are in agreement with previous experiments. While the polarizability per atom for sodium clusters decreases slowly as a function of the cluster size, a sharp decrease between sizes 1 and 4 is observed for lithium clusters. Experimental values are compared to Density Functional Theory (DFT/PW91) calculations. The size evolutions for sodium and lithium cluster polarizabilities are well reproduced by our calculations. The sharp decrease observed for small lithium clusters is discussed in terms of electronic density.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s100530050433
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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