Magnetic control of flexoelectric domains in a nematic fluid

作者: Péter Salamon , Nándor Éber , Ágnes Buka , Tanya Ostapenko , Sarah Dölle

DOI: 10.1039/C4SM00182F

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摘要: The formation of flexoelectric stripe patterns (flexodomains) was studied under the influence external electric and magnetic fields in a nematic liquid crystal. critical voltage wavevector flexodomains were investigated different geometries by both experiments simulations. It is demonstrated that upon altering orientation field with respect to director, wavenumber behave substantially differently. In geometry twist Freedericksz transition, non-monotonic behavior as function found.

参考文章(44)
D. Demus, J. Goodby, G. W. Gray, H.‐W. Spiess, V. Vill, Handbook of liquid crystals Wiley-VCH Verlag GmbH. ,(1998) , 10.1002/9783527620555
I.W. Stewart, The static and dynamic continuum theory of liquid crystals Taylor and Francis. ,(2004)
Grzegorz Derfel, Numerical study of ionic current in dielectric liquid layer subjected to ac voltage Journal of Molecular Liquids. ,vol. 144, pp. 59- 64 ,(2009) , 10.1016/J.MOLLIQ.2008.10.007
Robert B. Meyer, Piezoelectric Effects in Liquid Crystals Physical Review Letters. ,vol. 22, pp. 918- 921 ,(1969) , 10.1103/PHYSREVLETT.22.918
L. M. Blinov, V. G. Chigrinov, Jay S. Patel, Electro‐Optic Effects in Liquid Crystal Materials Physics Today. ,vol. 48, pp. 85- 87 ,(1995) , 10.1063/1.2807983
F. C. M. Freire, A. L. Alexe-Ionescu, M. Scalerandi, G. Barbero, Voltage decay time of a liquid crystal cell submitted to a large difference of potential Applied Physics Letters. ,vol. 89, pp. 214101- 214103 ,(2006) , 10.1063/1.2393040
Alexei Krekhov, Werner Pesch, Ágnes Buka, Flexoelectricity and pattern formation in nematic liquid crystals. Physical Review E. ,vol. 83, pp. 051706- 051706 ,(2011) , 10.1103/PHYSREVE.83.051706
Franklin Lonberg, Robert B. Meyer, New ground state for the Splay-Fréedericksz transition in a polymer nematic liquid crystal. Physical Review Letters. ,vol. 55, pp. 718- 721 ,(1985) , 10.1103/PHYSREVLETT.55.718
G. Derfel, M. Buczkowska, Numerical Study of Flexoelectric Longitudinal Domains Molecular Crystals and Liquid Crystals. ,vol. 547, pp. 213- ,(2011) , 10.1080/15421406.2011.572787