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- W2034405792 abstract "The dielectric spectrum of an antiferroelectric liquid crystal is predicted by finding approximate analytic solutions to the Landau–Ginzburg equation describing its time dependent behavior. Two collective modes are predicted: (i) a low frequency mode that is caused by an in-phase rotation of the directors in adjacent layers; (ii) a higher frequency mode caused by an antiphase motion. The mechanism for the in-phase mode is shown to be the interaction of the applied field with a polarization that is induced by a local change to the antiferroelectric ordering (an antiphase motion). The bias field dependencies of the predicted dielectric spectrum are shown to agree well with experimental results. The approximate analytic solutions are used to estimate the critical field for helix unwinding, the result being consistent with numerical predictions and de Gennes’ result for the critical unwinding field of a cholesteric liquid crystal [P. De Gennes, Solid State Commun. 6, 163 (1968)]." @default.
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- W2034405792 date "2002-06-19" @default.
- W2034405792 modified "2023-09-26" @default.
- W2034405792 title "Theoretical prediction of the dielectric spectrum of an antiferroelectric liquid crystal" @default.
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- W2034405792 doi "https://doi.org/10.1063/1.1486029" @default.
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