Bent-core liquid crystals forming two- and three-dimensional modulated structures

被引：124

作者：

Szydlowska, J

Mieczkowski, J

Matraszek, J

Bruce, DW

Gorecka, E

Pociecha, D

Guillon, D

机构：

[1] Univ Warsaw, Dept Chem, PL-02089 Warsaw, Poland

[2] Univ Exeter, Sch Chem, Exeter EX4 4QD, Devon, England

[3] GMO, Inst Phys & Chem Mat Strasbourg, Strasbourg, France

来源：

PHYSICAL REVIEW E | 2003年 / 67卷 / 03期

关键词：

D O I：

10.1103/PhysRevE.67.031702

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：

Two columnar phases of bent-core molecules have been observed, with a two-dimensional (2D) structure modulated in the plane perpendicular to the direction of the spontaneous polarization vector. The phases are switchable under an applied electric field, contrary to the commonly observed 2D modulated B-1 phase. These new phases are built from broken smectic layers with orthogonal or tilted molecules. The evidence for a 3D structure in which the density modulations along and perpendicular to the spontaneous polarization vector co-exists is also given.

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页数：5

相关论文

共 20 条

[1] Solution of the dark state problem in antiferroelectric liquid crystal displays [J].

D'havé, K ;

Rudquist, P ;

Lagerwall, ST ;

Pauwels, H ;

Drzewinski, W ;

Dabrowski, R .

APPLIED PHYSICS LETTERS, 2000, 76 (24) :3528-3530

[2] Antiferroelectric liquid crystals with 45° tilt -: A new class of promising electro-optic materials [J].

D'Havé, K ;

Dahlgren, A ;

Rudquist, P ;

Lagerwall, JPF ;

Andersson, G ;

Matuszczyk, M ;

Lagerwall, ST ;

Dabrowski, R ;

Drzewinski, W .

FERROELECTRICS, 2000, 244 (1-4) :115-128

[3] X-RAY STUDIES OF LIQUID-CRYSTALLINE PHASES OF POLYCATENAR SUBSTANCES EVIDENCE FOR A RECTANGULAR COLUMNAR STRUCTURE [J].

DIELE, S ;

ZIEBARTH, K ;

PELZL, G ;

DEMUS, D ;

WEISSFLOG, W .

LIQUID CRYSTALS, 1990, 8 (02) :211-216

[4] Experimental evidence for an achiral orthogonal biaxial smectic phase without in-plane order exhibiting antiferroelectric switching behavior -: art. no. 051707 [J].

Eremin, A ;

Diele, S ;

Pelzl, G ;

Nádasi, H ;

Weissflog, W ;

Salfetnikova, J ;

Kresse, H .

PHYSICAL REVIEW E, 2001, 64 (05) :6

[5]

Gray G.W.J.W.G. Goodby., 1984, SMECTIC LIQUID CRYST

[6]

HARDOUIN F, 1982, J PHYS LETT, V43, pL32

[7]

LEVELUT AM, 1984, J PHYS LETT-PARIS, V45, pL603, DOI 10.1051/jphyslet:019840045012060300

[8] Spontaneous formation of macroscopic chiral domains in a fluid smectic phase of achiral molecules [J].

Link, DR ;

Natale, G ;

Shao, R ;

Maclennan, JE ;

Clark, NA ;

Korblova, E ;

Walba, DM .

SCIENCE, 1997, 278 (5345) :1924-1927

[9] Bent-shaped mesogens without an azomethine joint [J].

Mieczkowski, J ;

Szydlowska, J ;

Matraszek, J ;

Pociecha, D ;

Gorecka, E ;

Donnio, B ;

Guillon, D .

JOURNAL OF MATERIALS CHEMISTRY, 2002, 12 (12) :3392-3399

[10] Distinct ferroelectric smectic liquid crystals consisting of banana shaped achiral molecules [J].

Niori, T ;

Sekine, T ;

Watanabe, J ;

Furukawa, T ;

Takezoe, H .

JOURNAL OF MATERIALS CHEMISTRY, 1996, 6 (07) :1231-1233