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  • Pseudo-Casimir interactions across nematic films with disordered anchoring axis
    Karimi Haddadan, F. P. ...
    We study the effective pseudo-Casimir interaction forces mediated by a nematic liquid-crystalline film bounded by two planar surfaces, one of which imposes a random (disordered) distribution of the ... preferred anchoring axis in the so-called easy direction. We consider both the case of a quenched as well as an annealed disorder for the easy direction on the disordered surface and analyze the resultant fluctuation-induced interaction between the surfaces. In the case of quenched disorder, we show that the disorder effects appear additively in the total interaction and are dominant at intermediate inter-surface separations. Disorder effects are shown to be unimportant at both very small and very large separations. In the case of annealed disorder its effects are non-additive in the total inter-surface interaction and can be rationalized in terms of a renormalized extrapolation length.
    Vir: Journal of physics. Condensed matter. - ISSN 0953-8984 (Vol. 26, no. 7, 2014, str. 075103-1-075103-8)
    Vrsta gradiva - članek, sestavni del
    Leto - 2014
    Jezik - angleški
    COBISS.SI-ID - 2635876

vir: Journal of physics. Condensed matter. - ISSN 0953-8984 (Vol. 26, no. 7, 2014, str. 075103-1-075103-8)
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