Regular structures in 5CB liquid crystals under the joint action of ac and dc voltages

被引：15

作者：

Aguirre, Luis E. ^{[1
,2
]}

Anoardo, Esteban ^{[1
,2
]}

Eber, Nandor ^{[3
]}

Buka, Agnes ^{[3
]}

机构：

[1] Univ Nacl Cordoba, LaRTE FaMAF, RA-5000 Cordoba, Argentina

[2] IFEG CONICET Medina Allende & Haya de la Torre SN, Buenos Aires, DF, Argentina

[3] Hungarian Acad Sci, Wigner Res Ctr Phys, Inst Solid State Phys & Opt, H-1525 Budapest, Hungary

来源：

PHYSICAL REVIEW E | 2012年 / 85卷 / 04期

关键词：

LONGITUDINAL FLEXOELECTRIC DOMAINS; POLAR SURFACE INSTABILITY; ELECTROHYDRODYNAMIC INSTABILITY; NEMATIC CYANOBIPHENYLS; TRANSIENT;

D O I：

10.1103/PhysRevE.85.041703

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A nematic liquid crystal with high, positive dielectric anisotropy (5CB) has been studied under the influence of the combined action of a dc and an ac electric field. Broad frequency, voltage, and cell thickness ranges were considered. Pattern morphologies were identified; the thresholds and critical wave numbers were measured and analyzed as a function of frequency, dc-to-ac voltage ratio, and thickness. The current-voltage characteristics were simultaneously detected.

引用

页数：9

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