Free-energy power expansion for orientationally ordered phases: Energy and entropy

被引：4

作者：

Shiyanovskii, Sergij V. ^{[1
,2
]}

机构：

[1] Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA

[2] Kent State Univ, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA

来源：

PHYSICAL REVIEW E | 2013年 / 87卷 / 06期

关键词：

BIAXIAL NEMATICS; LIQUID; TRANSITIONS;

D O I：

10.1103/PhysRevE.87.060502

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We propose an approach to the description of orientational phase transitions that utilizes the specific features of orientational energy and entropy. The approach is applied to building a model for nematic phases in materials with nonpolar parallelepiped-type molecules with symmetry D-2h. The model operates with complex order parameters, generalizes the Landau-de Gennes theory, and predicts the existence of a biaxial nematic phase for the fourth-order expansion of free energy.

引用

页数：4

共 50 条

[1] FREE-ENERGY AND THE RELATIVE ENTROPY
DONALD, MJ
[J]. JOURNAL OF STATISTICAL PHYSICS, 1987, 49 (1-2) : 81 - 87
[2] DETERMINATION OF ACTIVATION ENTROPY AND FREE-ENERGY
MACEWEN, SR
[J]. SCRIPTA METALLURGICA, 1973, 7 (05): : 457 - 462
[3] THE IRREVERSIBILITY LINE AND A FREE-ENERGY EXPANSION
DORIA, MM
[J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1994, 235 : 2735 - 2736
[4] FORM OF THE FREE-ENERGY FOR UNIAXIALLY ORDERED LIQUIDS
GELBART, WM
BARBOY, B
[J]. MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1979, 55 (1-4): : 209 - 226
[5] FREE-ENERGY BARRIERS IN INCOMMENSURATE MODULATED PHASES
KAWASAKI, K
[J]. JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1983, 16 (36): : 6911 - 6920
[6] FREE-ENERGY AND ENTROPY CALCULATIONS IN HYDRODYNAMIC DISPERSION
CASE, CM
CARNAHAN, CL
[J]. TRANSACTIONS-AMERICAN GEOPHYSICAL UNION, 1973, 54 (11): : 1085 - 1085
[7] ON ENTROPY AND FREE-ENERGY OF EXPLOSIVES (PRELIMINARY COMMUNICATION)
URBANSKI, T
[J]. BULLETIN DE L ACADEMIE POLONAISE DES SCIENCES-SERIE DES SCIENCES CHIMIQUES, 1980, 28 (7-8): : 511 - 513
[8] EQUILIBRIUM, FREE-ENERGY, AND ENTROPY - RATES AND DIFFERENCES
MACDONALD, JJ
[J]. JOURNAL OF CHEMICAL EDUCATION, 1990, 67 (05) : 380 - 382
[9] POTENTIAL DEPENDENCE OF THE ENTROPY COMPONENT OF THE FREE-ENERGY OF ACTIVATION IN LINEAR FREE-ENERGY RELATIONS FOR ELECTRODE PROCESSES
CONWAY, BE
TESSIER, DF
WILKINSON, D
[J]. CHEMICAL PHYSICS LETTERS, 1986, 125 (5-6) : 589 - 593
[10] EVALUATION OF FREE-ENERGY EXPANSION COEFFICIENTS IN TGS
ZEREM, JZ
HALPERIN, A
[J]. FERROELECTRICS, 1974, 7 (1-4) : 205 - 207

← 1 2 3 4 5 →