Electroconvection in one-dimensional liquid crystal cells

Physical Review. E
Jong-Hoon Huh

Abstract

We investigate the alternating current (ac) -driven electroconvection (EC) in one-dimensional cells (1DCs) under the in-plane switching mode. In 1DCs, defect-free EC can be realized. In the presence and absence of external multiplicative noise, the features of traveling waves (TWs), such as their Hopf frequency f_{H} and velocity, are examined in comparison with those of conventional two-dimensional cells (2DCs) accompanying defects of EC rolls. In particular, we show that the defects significantly contribute to the features of the TWs. Additionally, owing to the defect-free EC in the 1DCs, the effects of the ac and noise fields on the TW are clarified. The ac field linearly increases f_{H}, independent of the ac frequency f. The noise increases f_{H} monotonically, but f_{H} does not vary below a characteristic noise intensity V_{N}^{*}. In addition, soliton-like waves and unfamiliar oscillation of EC vortices in 1DCs are observed, in contrast to the localized EC (called worms) and the oscillation of EC rolls in 2DCs.

References

May 18, 1987·Physical Review Letters·C M Surko, P Kolodner
Mar 19, 1990·Physical Review Letters·J J NiemelaD S Cannell
Jan 8, 1996·Physical Review Letters·M DenninD S Cannell
Sep 16, 1996·Physical Review Letters·M DenninD S Cannell
Dec 20, 2003·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Jong-Hoon Huh, Shoichi Kai
Aug 11, 2005·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Thomas JohnRalf Stannarius
Sep 21, 2011·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Jong-Hoon Huh
Jan 15, 2016·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Jong-Hoon Huh
May 14, 2016·Physical Review. E·Nándor ÉberÁgnes Buka

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Citations

Apr 16, 2020·Physical Review. E·Yifei GuanIgor Novosselov

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