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  • 1985-1989  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Alignment of nematic liquid crystals by inhomogeneous surfaces (1985)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 57 (1985), S. 186-192 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Variable oblique alignment of nematic liquid crystals has been achieved on microscopically inhomogeneous surfaces. The surfaces consist of small patches favoring vertical (homeotropic) alignment surrounded by a matrix favoring a planar alignment. The construction of these surfaces employs randomly distributed microscopic metal islands formed by certain metals as vapor-deposited films. Larger scale periodic patterns were made as well to verify the techniques. The results are interpreted in terms of a continuum elasticity theory and azimuthal degeneracy is also discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.334841
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Computations of the phase equilibrium, elastic constants, and viscosities of a hard-rod nematic liquid crystal (1986)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 84 (1986), S. 3443-3448 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Using an iterative solution to the Onsager integral equation for the orientational distribution function of spherocylinders in the nematic liquid crystal phase, we have studied several aspects of the Onsager theory of nematic ordering. We find that the isotropic–nematic coexistence region becomes narrower as the ionic strength of the solution decreases. We also calculate the curvature elastic constants and the nematodynamic viscosities of the nematic phase as a function of particle concentration. The results are compared to experimental data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.450228
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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