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  • 35.20. Wg  (1)
  • 71.50.+t  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Experimental and theoretical studies of the structure of alkali halide clusters (1991)
    Springer
    The European physical journal 20 (1991), S. 93-96 
    Details
    ISSN: 1434-6079
    Keywords: 36.40. + d ; 35.20. Wg ; 79.20.Ds
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We have investigated the structures and properties of alkali halide cluster ions produced by laser vaporization of solid samples. In many alkali halide cluster ions, we observe the appearances of bulk-like characteristics even at sub-nanometer sizes:fcc crystalline structures (including surface terraces), ionic binding, and a susceptibility to common bulk defects such as F and H color-centers. To understand the origins of cluster structures, we have made calculations of ground state energetics, high-temperature molecular dynamics, and the electronic structure of clusters having excess electrons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01543946
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Localization in small fcc-particles with surface irregularities and disorder (1991)
    Springer
    The European physical journal 20 (1991), S. 361-363 
    Details
    ISSN: 1434-6079
    Keywords: 36.40.+d ; 71.50.+t ; 31.20.Pv
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A numerical eigenvector analysis is used to investigate Anderson localization in small fcc-particles ofN=309 andN=147 atoms. Special attention is given to the way size and surface roughness of the particles influence the localization behavior. States begin to localize in a non-exponential regime several lattice spacings from the center of localization and finally converge to a fully exponentially-localized regime for strong disorder. For smooth surface particles, it is found that the states localize first at the band bottom and a mobility edge can clearly be defined for increasing disorder. This doesn't seem to be the case for the rougher particles, where the band middle and the band bottom show similar behavior towards localization. Although particles with surface irregularities show an onset of localization for smaller values of the disorder than smooth particles, the localization length is greater.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01544011
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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