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  • 36.40.+d  (1)
  • PACS. 36.40.Wa Charged clusters – 34.50.Bw Energy loss and stopping power  (1)
  • PACS: 36.40.-c Atomic and molecular clusters – 32.10.Dk Electric and magnetic moments, polarizability – 31.15.Ew Density functional theory  (1)
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  • 1
    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
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  • 2
    Digitale Medien
    Digitale Medien
    Stopping power and nano-particles: Collisions of ions in low charge states with metallic clusters (2001)
    Springer
    The European physical journal 14 (2001), S. 317-322 
    Details
    ISSN: 1434-6079
    Schlagwort(e): PACS. 36.40.Wa Charged clusters – 34.50.Bw Energy loss and stopping power
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s100530170198
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  • 3
    Digitale Medien
    Digitale Medien
    Ionic structure effects on the optical response of lithium clusters (1993)
    Springer
    The European physical journal 28 (1993), S. 81-85 
    Details
    ISSN: 1434-6079
    Schlagwort(e): 71.10.+x ; 36.40.+d ; 31.10.+z
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01437458
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