Twist-grain-boundary phase diagrams in chiral liquid crystals

被引：10

作者：

Garland, CW ^{[1
]}

机构：

[1] MIT, Dept Chem, Cambridge, MA 02139 USA

[2] MIT, Ctr Mat Sci & Engn, Cambridge, MA 02139 USA

来源：

LIQUID CRYSTALS | 1999年 / 26卷 / 05期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1080/026782999204723

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The experimental phase diagrams of several chiral systems are compared with a theoretical diagram based on the chiral Chen-Lubensky model, which predicts at least two kinds of twist-grain-boundary phase, TGB(A) and TGB(C). Also shown for comparison are typical nonchiral phase diagrams that exhibit a nematic-smectic A-smectic C multicritical point. Several aspects of experiment and theory agree, but there appear to be common experimental features that differ from those predicted by current theory.

引用

收藏

页码：669 / 677

页数：9

相关论文

共 44 条

[1] Three chiral tolane series with twist grain boundary smectic A and C mesophases [J].

Bouchta, A ;

Nguyen, HT ;

Navailles, L ;

Barois, P ;

Destrade, C ;

Bougrioua, F ;

Isaert, N .

JOURNAL OF MATERIALS CHEMISTRY, 1995, 5 (12) :2079-2092

[2] NEW TGB(A) SERIES EXHIBITING A S(C)ASTERISK-S(A)S(A)ASTERISK-N-ASTERISK PHASE SEQUENCE [J].

BOUCHTA, A ;

NGUYEN, HT ;

ACHARD, MF ;

HARDOUIN, F ;

DESTRADE, C ;

TWIEG, RJ ;

MAAROUFI, A ;

ISAERT, N .

LIQUID CRYSTALS, 1992, 12 (04) :575-591

[3]

BOUGRIOUA F, 1997, THESIS U LILLE FRANC

[4] UNIVERSALITY OF PHASE-DIAGRAMS NEAR THE NEMATIC, SMECTIC-A, SMECTIC-C MULTICRITICAL POINT [J].

BRISBIN, D ;

JOHNSON, DL ;

FELLNER, H ;

NEUBERT, ME .

PHYSICAL REVIEW LETTERS, 1983, 50 (03) :178-181

[5] CALORIMETRIC STUDY OF CHIRAL LIQUID-CRYSTALS WITH A TWIST-GRAIN-BOUNDARY PHASE [J].

CHAN, T ;

GARLAND, CW ;

NGUYEN, HT .

PHYSICAL REVIEW E, 1995, 52 (05) :5000-5003

[6] LANDAU-GINZBURG MEAN-FIELD THEORY FOR NEMATIC TO SMECTIC-C AND NEMATIC TO SMECTIC-A PHASE-TRANSITIONS [J].

CHEN, JH ;

LUBENSKY, TC .

PHYSICAL REVIEW A, 1976, 14 (03) :1202-1207

[7] NEMATIC-SMECTIC-A-SMECTIC-C MULTICRITICAL POINT [J].

DEHOFF, R ;

BIGGERS, R ;

BRISBIN, D ;

JOHNSON, DL .

PHYSICAL REVIEW A, 1982, 25 (01) :472-480

[8] MELTED-GRAIN-BOUNDARY PHASE IN CHIRAL SMECTIC-C LIQUID-CRYSTALS NEAR THE TRIPLE N-ASTERISK-A-ASTERISK-C-ASTERISK POINT [J].

DOZOV, I .

PHYSICAL REVIEW LETTERS, 1995, 74 (21) :4245-4248

[9]

Dozov I., COMMUNICATION

[10] CRITICAL-BEHAVIOR AT NEMATIC SMECTIC-A PHASE-TRANSITIONS [J].

GARLAND, CW ;

NOUNESIS, G .

PHYSICAL REVIEW E, 1994, 49 (04) :2964-2971

← 1 2 3 4 5 →