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Modelling the Relaxation Dynamics of Nematic Liquid Crystals in Porous Hosts
Author(s) -
Huang Y.N.,
Wang Y.N.,
Ezquerra T.A.,
Riande E.
Publication year - 2000
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/(sici)1521-3951(200008)220:2<837::aid-pssb837>3.0.co;2-3
Subject(s) - liquid crystal , relaxation (psychology) , dynamics (music) , materials science , porous medium , bifurcation , condensed matter physics , exponential function , debye , porosity , thermodynamics , physics , mathematics , composite material , nonlinear system , psychology , social psychology , mathematical analysis , quantum mechanics , acoustics
Abstract A new model describing the relaxation dynamics of nematic liquid crystals in porous hosts is presented. The model predicts a bifurcation from a single high‐temperature relaxation to a bimodal low‐temperature process. The bimodal relaxation shows a cross‐over from a short‐time Debye type relaxation to an approximately stretched exponential one. The model gives a good account of the experimental results.