Helix unwinding in ferroelectric liquid crystals induced by tilted electric field

doi:10.1088/1674-1056/24/7/076101

中国物理B ›› 2015, Vol. 24 ›› Issue (7): 76101-076101.doi: 10.1088/1674-1056/24/7/076101

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇下一篇

Helix unwinding in ferroelectric liquid crystals induced by tilted electric field

Nail G. Migranov^a, Aleksey A. Kudreyko^b

a Bashkir State Pedagogical University, Department of General and Theoretical Physics, Okt. Revolutsii st. 3A, 450000 Ufa, Russia;
b Ufa State Petroleum Technological University, Department of Physics, Kosmonavtov st. 1, 450062 Ufa, Russia

收稿日期:2015-01-21 修回日期:2015-04-01 出版日期:2015-07-05 发布日期:2015-07-05
基金资助:
Project supported by the Russian Foundation for Basic Research (RFBR) (Grant No. 14-02-97026).

Helix unwinding in ferroelectric liquid crystals induced by tilted electric field

Nail G. Migranov^a, Aleksey A. Kudreyko^b

a Bashkir State Pedagogical University, Department of General and Theoretical Physics, Okt. Revolutsii st. 3A, 450000 Ufa, Russia;
b Ufa State Petroleum Technological University, Department of Physics, Kosmonavtov st. 1, 450062 Ufa, Russia

Received:2015-01-21 Revised:2015-04-01 Online:2015-07-05 Published:2015-07-05
Contact: Aleksey A. Kudreyko E-mail:akudreyko@rusoil.net
Supported by:
Project supported by the Russian Foundation for Basic Research (RFBR) (Grant No. 14-02-97026).

摘要/Abstract

摘要：

Helix unwinding in ferroelectric liquid crystals induced by an electric field is theoretically studied on the basis of the continuum theory. By applying a weak electric field tilted to the smectic layers, the contribution of the dielectric interaction energy density to the total free energy density is increased. Approximation methods are used to calculate the free energy for different tilt angles between the electric field and the smectic layers. The obtained results suggest selecting the optimal number of pitches in the film that matches to the minimum of the free energy.

关键词: ferroelectric liquid crystals, helicoidal structure, thin films, Euler', s equation

Abstract:

Key words: ferroelectric liquid crystals, helicoidal structure, thin films, Euler', s equation

中图分类号: (Theory and models of liquid structure)

61.20.Gy

61.20.Ja (Computer simulation of liquid structure) 61.30.Dk (Continuum models and theories of liquid crystal structure) 61.30.Gd (Orientational order of liquid crystals; electric and magnetic field effects on order)

Nail G. Migranov, Aleksey A. Kudreyko. Helix unwinding in ferroelectric liquid crystals induced by tilted electric field[J]. 中国物理B, 2015, 24(7): 76101-076101.

Nail G. Migranov, Aleksey A. Kudreyko. Helix unwinding in ferroelectric liquid crystals induced by tilted electric field[J]. Chin. Phys. B, 2015, 24(7): 76101-076101.

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Helix unwinding in ferroelectric liquid crystals induced by tilted electric field

Helix unwinding in ferroelectric liquid crystals induced by tilted electric field

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