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  • 21.60.-n  (2)
  • PACS: 79.20.D; 61.80.B; 61.82.P  (2)
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Materialart
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  • 1
    Digitale Medien
    Digitale Medien
    M1 resonances in unstable magic nuclei (1993)
    Springer
    The European physical journal 346 (1993), S. 253-260 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 21.10.-k ; 21.60.-n ; 24.30.Cz
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Within a microscopic approach which takes into account RPA configurations, the single-particle continuum and more complex 1p 1 h⊗phonon configurations isoscalar and isovector M1 excitations for the unstable nuclei56,78Ni and100,132Sn are calculated. For comparison, the experimentally known Ml excitations in40Ca and208Pb have also been calculated. In the latter nuclei good agreement in the centroid energy, the total transition strength and the resonance width is obtained. With the same parameters we predict the magnetic excitations for the unstable nuclei. The strength is sufficiently concentrated to be measurable in radioactive beam experiments. New features are found for the very neutron rich nucleus78Ni and the neutron deficient nucleus100Sn.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01292513
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  • 2
    Digitale Medien
    Digitale Medien
    E0 andM1 excitations in56Ni (1991)
    Springer
    The European physical journal 340 (1991), S. 111-117 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 21.10.-k ; 21.60.-n ; 24.30.-v
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The centroid energy and the decay width of the giant monopole resonance in the unstable nucleus56Ni are predicted. The resulting 0+, ΔT=0 strength distribution, including the escape and the spreading width, displays a structure centered at around 18 MeV with the total width of about 5 MeV. We also study theM1 response in this nucleus which shows a strong isovector transition at 9.6 MeV and a weak isoscalar one at 7.5 MeV.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01303822
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  • 3
    Digitale Medien
    Digitale Medien
    Surface modification and structuring of electrical conducting and isolating polyaniline films (1999)
    Springer
    Applied physics 69 (1999), S. S291 
    Details
    ISSN: 1432-0630
    Schlagwort(e): PACS: 79.20.D; 61.80.B; 61.82.P
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: Abstract. Laser ablation of polyaniline in its conducting and isolating form revealed very similar ablation properties upon irradiation at 308 nm. Both types of polymer film can be structured with high resolution at high fluences. The ablation craters have sharp contours and no debris contaminates the surrounding area. At low fluences the creation of cone structures is observed. X-ray photoelectron spectroscopy reveals the carbonization of the surface upon laser ablation. As preferred decomposition sites the imine groups in doped and undoped polyaniline are identified.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s003390051402
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  • 4
    Digitale Medien
    Digitale Medien
    Imaging-XPS/Raman investigation on the carbonization of polyimide after irradiation at 308 nm (1999)
    Springer
    Applied physics 69 (1999), S. S651 
    Details
    ISSN: 1432-0630
    Schlagwort(e): PACS: 79.20.D; 61.80.B; 61.82.P
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: Abstract. The laser ablation of polyimide was studied using 308 nm laser irradiation ≤225 mJ cm-2. Confocal Raman microscopy revealed the deposition of carbon surrounding the ablation crater, which consists of amorphous carbon with some crystalline features. Inside the crater, graphitic material was detected on top of the cones, very similar to the material from cw-Ar+ ion laser irradiation. FT-Raman measurements reveal the presence of intermediates of the polyimide decomposition. Imaging-X-ray photoelectron spectroscopy confirmed the deposition of carbon material surrounding the ablation crater and showed that the oxygen and nitrogen contents of the remaining material decrease.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s003390051497
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