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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/61668


    Title: Nonuniform distortions during electric field induced unwinding of a cholesteric liquid crystal
    Authors: 余良杰;Yu, L. J.;Labes, M. M.
    Contributors: 淡江大學化學學系
    Date: 1974-01-01
    Issue Date: 2011-10-15 23:27:03 (UTC+8)
    Abstract: Direct experimental evidence is reported for non-uniform distortions of a cholesteric array undergoing an electric field induced nematic transition. The effect is most pronounced when sample thickness is comparable to the pitch, when the helix axis is parallel to the walls, and when the electric field is applied perpendicular to the helix axis. Thicker samples display helix expansion as a uniform process as field is applied, in accord with theory, and similar to the experimentally observed thermal pitch distortions.
    Relation: Molecular crystals and liquid crystals 28(3-4), pp.423-435
    DOI: 10.1080/15421407408082835
    Appears in Collections:[Graduate Institute & Department of Chemistry] Journal Article

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