MOLECULAR-DYNAMICS SIMULATIONS OF DISCOTIC LIQUID-CRYSTALS USING A HYBRID GAY BERNE LUCKHURST ROMANO POTENTIAL

被引:20
作者
DELUCA, MD
NEAL, MP
CARE, CM
机构
[1] SHEFFIELD HALLAM UNIV,MAT RES INST,SHEFFIELD S1 1WB,ENGLAND
[2] SHEFFIELD HALLAM UNIV,DIV APPL PHYS,SHEFFIELD S1 1WB,ENGLAND
关键词
D O I
10.1080/02678299408029150
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We report the results of the computer simulation of a collection of particles interacting via an anisotropic potential proposed by Luckhurst and Romano and modified by scaling with part of the anisotropic well depth formalism employed by Gay-Berne. Using the molecular dynamics technique for 256 particles in the NVE ensemble, the system is shown to exhibit a variety of mesophases, as the temperature is lowered, and these are provisionally identified as isotropic, discotic nematic, a highly ordered fluid phase with some columnar features and a crystal.
引用
收藏
页码:257 / 266
页数:10
相关论文
共 17 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]  
Allen M.P., 1987, COMPUTER SIMULATION
[3]  
[Anonymous], 1970, METHODS COMPUT PHYS, DOI DOI 10.1021/JP805458P
[4]   PHASE-BEHAVIOR OF PARALLEL CUT SPHERES - MONTE-CARLO AND INTEGRAL-EQUATION RESULTS [J].
AZZOUZ, H ;
CAILLOL, JM ;
LEVESQUE, D ;
WEIS, JJ .
JOURNAL OF CHEMICAL PHYSICS, 1992, 96 (06) :4551-4558
[5]   GAUSSIAN MODEL POTENTIALS FOR MOLECULAR-INTERACTIONS [J].
BERNE, BJ ;
PECHUKAS, P .
JOURNAL OF CHEMICAL PHYSICS, 1972, 56 (08) :4213-&
[6]   LIQUID-CRYSTAL PHASE-DIAGRAM OF THE GAY-BERNE FLUID [J].
DEMIGUEL, E ;
RULL, LF ;
CHALAM, MK ;
GUBBINS, KE .
MOLECULAR PHYSICS, 1991, 74 (02) :405-424
[7]  
EMERSON APJ, 1991, THESIS U SOUTHAMPTON
[8]   A MONTE CARLO SIMULATION OF NEMATIC AND DISCOTIC ORDERING IN A POLYMERIC LIQUID CRYSTAL [J].
Everitt, D. R. R. ;
Care, C. M. .
MOLECULAR SIMULATION, 1990, 5 (3-4) :167-173
[9]  
FINCHAM D, 1984, CCP5 Q, V12, P47
[10]   PHASE-DIAGRAM OF HARD ELLIPSOIDS OF REVOLUTION [J].
FRENKEL, D ;
MULDER, BM ;
MCTAGUE, JP .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1985, 123 (1-4) :119-128