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  • 1
    Electronic Resource
    Electronic Resource
    Multiple electromagnetic excitation with relativistic heavy ions (1989)
    Springer
    The European physical journal 332 (1989), S. 203-208 
    Details
    ISSN: 1434-601X
    Keywords: 25.20 ; 25.70 ; 21.60.E
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The multiple electromagnetic excitation with fast projectiles (heavy ions) is studied theoretically in the sudden approximation. Of special interest is the excitation of rotational states coupled to giant (dipole) vibrations. Closed form expressions are obtained for the excitation of a rigid rotor. The strong pulse of high energy equivalent photons in relativistic heavy ion collisions opens up new possibilities for nuclear structure studies, not possible e.g. with electron scattering or nuclear Raman scattering. It is also pointed out that the “Brink-hypothesis” can be investigated in a new way by means of multiple electromagnetic excitation with relativistic heavy ions of low lying states coupled to the giant dipole mode.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01289776
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Fréedericksz deformation in nematic liquid crystals with frequency dependent dielectric constant (1975)
    Springer
    Applied physics 6 (1975), S. 309-313 
    Details
    ISSN: 1432-0630
    Keywords: Liquid crystals ; Electrooptic effects ; Elastic deformations
    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 rise and decay times of a Fréedericksz deformation in a planar nematic layer have been investigated. The liquid crystal used was an ester mixture with regimes of positive as well as negative dielectric anisotropy. This property allows to control both the rise and the decay times of the deformation by switching the frequency of the electric field. The kinetics was monitored with a fluorescent dye-probe.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00883647
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Controlled decay of electrically induced deformations in nematic liquid crystals (1973)
    Springer
    Applied physics 2 (1973), S. 349-350 
    Details
    ISSN: 1432-0630
    Keywords: Liquid crystals ; Electrooptic effects
    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 transient behavior of electrically induced deformations of parallel oriented nematic liquid crystal layers was investigated. The nematic material used was a mixture of disubstituted benzoyloxybenzoic acid esters the dielectric anisotropy of which is positive at dc and low frequencies, and changes sign in the kHz range. The decay time of a deformation induced by a low frequency field can be considerably reduced by switching the frequency to the range where the dielectric anisotropy is negative. This effect becomes even more pronounced for higher viscosities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00896942
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    Paper (German National Licenses)
    Fulltext
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