On in-plane smectic layer reorientation in ferroelectric liquid crystal cells

Ingo Dierking, Lachezar Komitov, Sven T. Lagerwall

    Research output: Contribution to journalArticlepeer-review


    We report the results of a systematic investigation of the process of smectic layer reorientation of a ferroelectric liquid crystal on the application of asymmetric electric fields. In contrast to previous reports, we observed a reversible smectic layer rotation in the plane of the substrate, limited by the amount of the director tilt angle, particularly also for asymmetric rectangular waveforms. We discuss the behaviour of a variation of external parameters, such as field asymmetry, electric field amplitude, frequency, cell gap and temperature in terms of the dominant influences of -liquid crystal substrate interactions, director switching including the electroclinic effect and electro-convective effects which provides a qualitative description of the smectic layer rotation.
    Original languageEnglish
    Pages (from-to)L57-L60
    JournalJournal of Applied Physics
    Issue number Part 2, Number 1A/B
    Publication statusPublished - 15 Jan 1998


    • Alignment techniques
    • Ferroelectric liquid crystals
    • Field induced domain textures
    • Horizontal chevrons
    • Smectic layer rotation


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