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  • 1990-1994  (4)
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  • 1
    Electronic Resource
    Electronic Resource
    Simulation of cluster impact fusion (1992)
    Springer
    The European physical journal 22 (1992), S. 547-551 
    Details
    ISSN: 1434-6079
    Keywords: 36.40.+d ; 79.20.Rf
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We report molecular dynamics simulations of the impact of TiD clusters on TiD targets. In each cluster collision the total fusion probability seems to be due to a single deuterium deuterium collision. The kinetic energies of incident deuterium atoms gradually level off around the initial cluster energy, but do not reach the high energy tail of a corresponding Maxwell-Boltzmann distribution. Neither any other support for a thermonuclear fusion mechanism was observed. On the contrary, our simulations imply that the enhanced fusion rate is rather due to channeled many atom collision cascade type mechanism.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01426097
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Shell structure and level spacing distribution in metallic clusters (1993)
    Springer
    The European physical journal 26 (1993), S. 28-32 
    Details
    ISSN: 1434-6079
    Keywords: 36.40
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The lattice gas Monte Carlo and tight binding method is used to study the electronic shell structure in large metallic clusters. The average density of states of a large ensemble of deformed clusters shows the same shell structure as the most spherical geometry. The level spacing distribution at the Fermi level is a Wigner distribution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01429100
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    On the shell structure and geometry of monovalent metal clusters (1991)
    Springer
    The European physical journal 21 (1991), S. 271-279 
    Details
    ISSN: 1434-6079
    Keywords: 36.40
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The Hückel model is used to study the electronic structure of monovalent metal clusters. In an fcc cluster the Hückel model gives an estimate to the electronic structure of a free electron cluster. It is shown that the surface faceting of the fcc cluster can destroy the electronic shell structure already when the cluster has about 100 electrons. In the Hückel model the icosahedral structure has smaller total energy than the fcc structures, from which the Wulff construction has the smallest energy already when the cluster has 600 atoms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01426385
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Effects of the cluster surface on the electronic shell structure: faceting, roughness and softness (1994)
    Springer
    The European physical journal 31 (1994), S. 253-258 
    Details
    ISSN: 1434-6079
    Keywords: 36.40
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Several simple models have been used to study the effects of the surface on the electronic shell structure in metal clusters. The main results are as follows: The icosahedral clusters have the same electronic shell structure as the sphere up to about 1000 atoms. The surface roughness causes the distribution of the level spacings to be a Wigner distribution. By varying the softness of the potential we can obtain potentials where the simplest classical orbits are the ‘five-point star’ or even the ‘three-point star’.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01445003
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    Paper (German National Licenses)
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