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  • 27.60.+j  (1)
  • 33.80.Gj  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Enhanced cohesion of photo-oxygenated fullerene films: A new opportunity for lithography (1993)
    Springer
    Applied physics 57 (1993), S. 299-303 
    Details
    ISSN: 1432-0630
    Keywords: 61.46 ; 33.80.Gj ; 82.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The irradiation of sublimed fullerene (C60 and C70) thin films with ultraviolet light in an oxygen-rich ambient has been found to lead to a substantially increased cohesive energy in the fullerene solid. The decreased solubility and lower vapor pressure of the phototransformed material enables wet (organic solvents) or dry (thermal or photon-induced sublimation) development of photo-defined negative images. One micrometer wide lines with good edge definition are demonstrated. X-ray, infrared, optical absorption, and high performance liquid chromatography reveal that photo-oxygenated C60 retains its fcc crystal structure but with a substantial fraction of the C60 molecules modified with carbonyl (C=O) bonds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00332606
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  • 2
    Electronic Resource
    Electronic Resource
    Charge and mass radii of the tin isotopes (1988)
    Springer
    The European physical journal 329 (1988), S. 393-405 
    Details
    ISSN: 1434-601X
    Keywords: 21.10.Ft ; 21.10.Gv ; 27.60.+j
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Data on the isotope shift of the nuclear charge densities of the tin isotopes and of their mean square charge radii are considered from the viewpoint of the Hartree-Fock and Droplet Models. Attention is paid to the electromagnetic corrections of order 1/m2. Through a leptodermous analysis of charge and matter densities we find: (i) differences of m.s. charge radii are mainly sensitive to the external region, (ii) the electromagnetic corrections are important in that region, (iii) despite different leptodermous properties, forces Ska and GO-P lead to the same neutron skin thickness. The average rate of variation of the proton m.s. radius is interpreted as favouring either a low valueQ≈30 MeV for the droplet model asymmetry parameter, or a zero value for the saturation asymmetry parameterL.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01294344
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