Simultaneous Observation of Electric Field Coupling to Longitudinal and Transverse Ferroelectricity in a Chiral Liquid Crystal
1996; American Physical Society; Volume: 77; Issue: 11 Linguagem: Inglês
10.1103/physrevlett.77.2237
ISSN1092-0145
AutoresDarren R. Link, Joseph E. Maclennan, Noel A. Clark,
Tópico(s)Synthesis and Properties of Aromatic Compounds
ResumoWe report novel odd-even layering effects in freely suspended films of the chiral liquid crystal MHPOBC in its antiferroelectric smectic phase. Films with an odd number of smectic layers are characterized by transverse ferroelectricity (molecular tilt plane perpendicular to applied electric field E), while films with an even number of layers exhibit longitudinal ferroelectricity (molecular tilt plane parallel to E). This is the first observation of the simultaneous electric field manipulation of longitudinal and transverse ferroelectric polarization in liquid crystals.
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