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- DOI: 10.1063/1.3001933
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Asymmetric switching in a ferrielectric liquid crystal device
Jaradat, S; Brimicombe, P D; Roberts, N W; Southern, C; Gleeson, H F
Applied Physics Letters. 2008;93(15):3.
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Full-text held externally
- DOI: 10.1063/1.3001933
Abstract
The fast multistate switching associated with ferroelectric and antiferroelectric smectic liquid crystals makes them important materials for electro-optic devices, and asymmetric electro-optic responses are of particular interest for some analog switching applications. We report intrinsic asymmetric switching in a ferrielectric liquid crystal device observed using time-resolved small angle x-ray scattering and electro-optic measurements. The experiments reveal a marked variation in the response time depending on field polarity not present in the ferroelectric or antiferroelectric phase. We suggest that this is a consequence of the ferrielectric structure itself and interactions with the device surfaces. (C) 2008 American Institute of Physics. [DOI: 10.1063/1.3001933]
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- Jaradat, S. Brimicombe, P. D. Roberts, N. W. Southern, C. Gleeson, H. F. EPSRC ; SRS, Daresbury, U. K ; University of Manchester The authors thank the EPSRC, the SRS, Daresbury, U. K. (station 2.1), the University of Manchester for funding, M. Osipov for useful discussions, and J. W. Goodby and M. Hird for the material. 16 AMER INST PHYSICS MELVILLE 361JY