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  • 1
    Electronic Resource
    Electronic Resource
    Experimental studies on selenium cluster structures (1993)
    Springer
    The European physical journal 26 (1993), S. 352-354 
    Details
    ISSN: 1434-6079
    Keywords: .64.70.Fx ; 36.40.+d ; 35.20.Vf
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In this paper, we report properties of selenium clusters produced by vapor condensation technique. Impact electronic ionization is performed on clusters in the size range from 2 to 36 atoms. The measured ionization potentials exhibit small oscillation corresponding to the wiggles observed on the mass distribution. An attempt to connect these experimental observations with the geometrical structure of the molecules is made in the discussion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01429192
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Ionization potential measurements of hydrogenated lithium clusters (1993)
    Springer
    The European physical journal 26 (1993), S. 128-130 
    Details
    ISSN: 1434-6079
    Keywords: 36.40.+d ; 35.20.VF
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Ionization Potentials of LinHm clusters have been measured by photoionization. As in Lin, odd-even alternations and shell closing effects are observed. In a first approximation, we find that LinH clusters behave like Lin−1 and LinH2 like Lin−2. The results may be interpreted by assuming that the bonding of one hydrogen localizes one electron and that the other electrons remain delocalized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01425640
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  • 3
    Electronic Resource
    Electronic Resource
    Shell effects in photoionization spectra of heavy trivalent metal clusters (1993)
    Springer
    The European physical journal 26 (1993), S. 137-139 
    Details
    ISSN: 1434-6079
    Keywords: 36.40.+d ; 35.20.Vf ; 33.80.Eh
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Laser photoionization experiments have been performed on a large size range of indium and thallium clusters. The metal clusters were produced by laser vaporization technique and analyzed after laser ionization by standard time-of-flight mass spectrometry. For the indium clusters, individual ionization potentials (IP) are deduced for N≤132. Abrupt decreases in the IP values are observed, which correspond to the openings of new electronic shell as predicted by the spherical jellium model. For larger indium clusters, the unresolved mass spectra present small but reproducible oscillations. Interpretations in terms of either electronic shell structure or cluster geometry remain undecided for the moment. Our results on thallium clusters are less abundant and only qualitative. Nevertheless, they show that thallium behaves more like a monovalent element than like a trivalent one.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01425643
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Evaporation of tetramers in Sb4n clusters and conditions for the formation of Sb2n+1 clusters (1989)
    Springer
    The European physical journal 12 (1989), S. 217-219 
    Details
    ISSN: 1434-6079
    Keywords: 35.20.Vf ; 36.40.+d
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Antimony clusters are produced by the inert gas condensation technique. They are found to be built from Sb4 units. The fragmentation by evaporation of Sb4 units is studied as a function of the excess energy in the cluster. By this way the binding energy of the Sb4 units in the cluster is found to be about 1.5 eV, well below the binding energy of a Sb atom in the bulk and in Sb4(≃3eV). The evolution of ionization potentials of Sb4n clusters confirms that their structure is probably non metallic. Finally the possible metastable character of this Sb4n structure is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01426941
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  • 5
    Electronic Resource
    Electronic Resource
    Electronic and chemical properties of indium clusters (1989)
    Springer
    The European physical journal 12 (1989), S. 411-413 
    Details
    ISSN: 1434-6079
    Keywords: 35.20.Vf ; 36.40.+d
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Indium clusters are produced by the inert gas condensation technique. The ionization potentials are found higher for small clusters than for the Indium atom. This is explained by thep character of the bonding as in Aluminium. Doubly charge clusters are also observed and fragmentation processes discussed. Finally small Indium clusters 3〈n〈9 are found very reactive with hydrocarbon.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01426984
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  • 6
    Electronic Resource
    Electronic Resource
    Shell effects in large AlN clusters (1993)
    Springer
    The European physical journal 26 (1993), S. 92-94 
    Details
    ISSN: 1434-6079
    Keywords: 36.40.+d ; 03.65.Sq ; 33.80.Eh ; 35.20.Vf
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Neutral aluminum clusters have been produced by laser vaporization technique, ionized by a low-power near-threshold laser light and detected using standard TOF spectrometric methods. Ionization potentials have been deduced in the low size range. In the large size range 250〈N〈1400 the patterns of the mass spectra exhibit a regular and continuous oscillation, originating from size-dependent ionization threshold effects. The period, constant on a Ne 1/3 scale (Ne=3N is the number of valence electrons), is approximately two times shorter than the one observed in alkali experiments. This feature is analyzed in terms of shell structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01425628
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    Paper (German National Licenses)
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