A MODEL CALCULATION OF THE SURFACE ELASTIC-CONSTANTS OF A NEMATIC LIQUID-CRYSTAL

被引：45

作者：

TEIXEIRA, PIC ^{[1
]}

PERGAMENSHCHIK, VM ^{[1
]}

SLUCKIN, TJ ^{[1
]}

机构：

[1] KIEV PHYS INST, KIEV 252028, UKRAINE

来源：

MOLECULAR PHYSICS | 1993年 / 80卷 / 06期

关键词：

D O I：

10.1080/00268979300103071

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have evaluated the bulk and surface elastic constants of a nematic liquid crystal composed of Gay-Berne particles, using a generalization of earlier theories by Poniewierski and Stecki, and Lipkin, Rice and Mohanty. The ratios between surface and bulk elastic constants have been plotted as a function of temperature and at nematic-isotropic coexistence. In particular, the sign of the K-13 (splay-bend) constant has been shown to depend sensitively on details of the intermolecular potential. Results have been contrasted with those obtained from a different theory.

引用

页码：1339 / 1357

页数：19

共 72 条

[1] COMPUTER-SIMULATION STUDIES OF ANISOTROPIC SYSTEMS .17. THE GAY-BERNE MODEL NEMATOGEN [J].

ADAMS, DJ ;

LUCKHURST, GR ;

PHIPPEN, RW .

MOLECULAR PHYSICS, 1987, 61 (06) :1575-1580

[2] DETERMINATION OF THE LIQUID-CRYSTAL SURFACE ELASTIC-CONSTANT K24 [J].

ALLENDER, DW ;

CRAWFORD, GP ;

DOANE, JW .

PHYSICAL REVIEW LETTERS, 1991, 67 (11) :1442-1445

[3]

[Anonymous], 2013, THEORY SIMPLE LIQUID

[4] DISTORTION IN THE SURFACE-LAYERS OF NEMATIC LIQUID-CRYSTALS - AN ELASTIC-CONSTANT APPROACH [J].

BARBERO, G ;

OLDANO, C .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1989, 170 :99-106

[5] SOME CONSIDERATIONS ON THE ELASTIC THEORY FOR NEMATIC LIQUID-CRYSTALS [J].

BARBERO, G .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1991, 195 :199-220

[6] DERIVATIVE-DEPENDENT SURFACE-ENERGY TERMS IN NEMATIC LIQUID-CRYSTALS [J].

BARBERO, G ;

OLDANO, C .

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA D-CONDENSED MATTER ATOMIC MOLECULAR AND CHEMICAL PHYSICS FLUIDS PLASMAS BIOPHYSICS, 1985, 6 (05) :479-493

[7] MOLECULAR SHAPE AND VOLUME EFFECTS ON ORIENTATIONAL ORDERING OF SIMPLE LIQUID-CRYSTALS [J].

BARON, BA ;

GELBART, WM .

JOURNAL OF CHEMICAL PHYSICS, 1977, 67 (12) :5795-5801

[8]

BELLEMANS A, PHYS REV LETT, V21, P527

[9]

BETHANABOTLA VR, 1987, MOL PHYS, V60, P249

[10] A MOLECULAR SIMULATION OF A LIQUID-CRYSTAL MODEL: BULK AND CONFINED FLUID [J].

Chalam, Manoj K. ;

Gubbins, Keith E. ;

De Mtguel, Enrique ;

Rull, Luis F. .

MOLECULAR SIMULATION, 1991, 7 (5-6) :357-385

← 1 2 3 4 5 6 7 8 →