Electric field-induced phase transitions in a smectic chiral liquid crystal

被引：12

作者：

Essid, S. ^{[1
]}

Bitri, N. ^{[1
,2
]}

Dhaouadi, H. ^{[1
]}

Gharbi, A. ^{[1
]}

Marcerou, J. P. ^{[2
]}

机构：

[1] Fac Sci Tunis, Lab Phys Mat Molle, Tunis 2092, Tunisia

[2] Ctr Rech Paul Pascal, F-33600 Pessac, France

来源：

LIQUID CRYSTALS | 2009年 / 36卷 / 04期

关键词：

phase transitions; chirality; tilted smectic liquid crystal; phase diagram; DIAGRAMS;

D O I：

10.1080/02678290902898182

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The (E-T) phase diagram of the chiral smectic liquid crystal C7F2 has been established by varying the two thermodynamic parameters: temperature (T) and electric field (E). In its bulk state without field, the studied compound exhibits only the SmA, [image omitted] and the [image omitted] phases. These ground phases are transformed into the ferroelectric SmC* phase under high field with an intermediate ferrielectric phase appearing at lower field in the temperature range around the [image omitted] to [image omitted] phase transition.

引用

页码：359 / 364

页数：6

共 17 条

[1] ELECTROCHIRALLY CONTROLLED BISTABLE SURFACE SWITCHING IN NEMATIC LIQUID-CRYSTALS [J].

BARBERI, R ;

DURAND, G .

APPLIED PHYSICS LETTERS, 1991, 58 (25) :2907-2909

[2]

de Gennes P. G., 1993, The Physics of Liquid Crystals, V2nd ed

[3]

DHAOUADI H, 2009, THESIS

[4]

DOZOV I, 1997, P SOC PHOTO-OPT INS, V61, P61

[5] Synthesis and characterization of a novel liquid crystal series with tribenzoate cores and monofluoro-substitution on the phenyl ring near the chiral chain [J].

Essid, S ;

Manai, M ;

Gharbi, A ;

Marcerou, JP ;

Rouillon, JC ;

Nguyen, HT .

LIQUID CRYSTALS, 2004, 31 (09) :1185-1193

[6] Forces causing the orientation of an anisotropic liquid. [J].

Freedericksz, V ;

Zolina, V .

TRANSACTIONS OF THE FARADAY SOCIETY, 1933, 29 :0919-0930

[7] ANTIFERROELECTRIC CHIRAL SMECTIC LIQUID-CRYSTALS [J].

FUKUDA, A ;

TAKANISHI, Y ;

ISOZAKI, T ;

ISHIKAWA, K ;

TAKEZOE, H .

JOURNAL OF MATERIALS CHEMISTRY, 1994, 4 (07) :997-1016

[8] SMECTIC-O FILMS [J].

GALERNE, Y ;

LIEBERT, L .

PHYSICAL REVIEW LETTERS, 1990, 64 (08) :906-909

[9] ELECTRO-CLINIC EFFECT AT AC PHASE-CHANGE IN A CHIRAL SMECTIC LIQUID-CRYSTAL [J].

GAROFF, S ;

MEYER, RB .

PHYSICAL REVIEW LETTERS, 1977, 38 (15) :848-851

[10] Proposal for the temperature-electric-field phase diagram of a ferroelectric smectic-C* liquid crystal -: art. no. 051706 [J].

Ghoddoussi, F ;

Pantea, MA ;

Keyes, PH ;

Naik, R ;

Vaishnava, PP .

PHYSICAL REVIEW E, 2003, 68 (05)

← 1 2 →