BIAXIALITY IN A CYCLIC THERMOTROPIC NEMATIC LIQUID-CRYSTAL

被引：61

作者：

LI, JF

PERCEC, V

ROSENBLATT, C

LAVRENTOVICH, OD

机构：

[1] CASE WESTERN RESERVE UNIV,DEPT MACROMOLEC SCI,CLEVELAND,OH 44106

[2] KENT STATE UNIV,INST LIQUID CRYSTAL,KENT,OH 44242

来源：

EUROPHYSICS LETTERS | 1994年 / 25卷 / 03期

关键词：

D O I：

10.1209/0295-5075/25/3/008

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Birefringence and textural data are presented for a ring-shaped trimeric liquid crystal. The material apparently undergoes a uniaxial-to-biaxial nematic phase transition as a function of temperature.

引用

页码：199 / 204

页数：6

共 34 条

[1] PHASE-TRANSITIONS IN A FLUID OF BIAXIAL PARTICLES [J].

ALBEN, R .

PHYSICAL REVIEW LETTERS, 1973, 30 (17) :778-781

[2] CRITICAL-BEHAVIOR OF UNIAXIAL BIAXIAL NEMATIC PHASE-TRANSITIONS IN AMPHIPHILIC SYSTEMS [J].

BOONBRAHM, P ;

SAUPE, A .

JOURNAL OF CHEMICAL PHYSICS, 1984, 81 (04) :2076-2081

[3] A BIAXIAL NEMATIC LIQUID-CRYSTAL [J].

CHANDRASEKHAR, S ;

SADASHIVA, BK ;

RATNA, BR ;

RAJA, VN .

PRAMANA, 1988, 30 (05) :L491-L494

[4] STRUCTURAL TRANSITION AT THE FREE-SURFACE OF THE NEMATIC LIQUID-CRYSTALS MBBA AND EBBA [J].

CHIARELLI, P ;

FAETTI, S ;

FRONZONI, L .

JOURNAL DE PHYSIQUE, 1983, 44 (09) :1061-1067

[5] CRITICAL-BEHAVIOR OF THE ANCHORING ENERGY OF THE DIRECTOR AT THE FREE-SURFACE OF A NEMATIC LIQUID-CRYSTAL [J].

CHIARELLI, P ;

FAETTI, S ;

FRONZONI, L .

PHYSICS LETTERS A, 1984, 101 (01) :31-34

[6] BEHAVIOR OF THE ANCHORING STRENGTH COEFFICIENT NEAR A STRUCTURAL TRANSITION AT A NEMATIC SUBSTRATE INTERFACE [J].

DILISI, GA ;

ROSENBLATT, C ;

GRIFFIN, AC ;

HARI, U .

LIQUID CRYSTALS, 1990, 7 (03) :353-360

[7]

EBERT M, 1988, MAKROMOL CHEM-RAPID, V9, P445

[8] THE SYMMETRY OF THE NEMATIC PHASE OF A THERMOTROPIC LIQUID-CRYSTAL - BIAXIAL OR UNIAXIAL [J].

FAN, SM ;

FLETCHER, ID ;

GUNDOGAN, B ;

HEATON, NJ ;

KOTHE, G ;

LUCKHURST, GR ;

PRAEFCKE, K .

CHEMICAL PHYSICS LETTERS, 1993, 204 (5-6) :517-523

[9] TEMPERATURE BEHAVIOR OF THE ORDER-PARAMETER INVARIANTS IN THE UNIAXIAL AND BIAXIAL NEMATIC PHASES OF A LYOTROPIC LIQUID-CRYSTAL [J].

GALERNE, Y ;

MARCEROU, JP .

PHYSICAL REVIEW LETTERS, 1983, 51 (23) :2109-2111

[10]

HESSEL F, 1987, MAKROMOL CHEM, V188, P1597

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