STRUCTURAL PHASE-TRANSITIONS IN LIQUID-CRYSTAL FILMS INDUCED BY AN APPLIED ELECTRIC-FIELD

被引：10

作者：

CHEN, CM ^{[1
]}

MACKINTOSH, FC ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA,INST THEORET PHYS,SANTA BARBARA,CA 93106

来源：

EUROPHYSICS LETTERS | 1995年 / 30卷 / 04期

关键词：

D O I：

10.1209/0295-5075/30/4/005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study structural phase transitions among modulated phases of liquid-crystal films. As a function of an applied electric field, we find that both square-lattice and hexagonal modulated phases are possible. The latter are similar to hexagonal phases predicted for smectic-C* films. In contrast with reconstructive transitions, however, we predict that the square-lattice modulated phase can undergo a continuous evolution to the hexagonal phase. Intermediate between these two phases is a phase of lower symmetry.

引用

页码：215 / 220

页数：6

共 14 条

[1]

CHEN CM, IN PRESS PHYS REV E

[2] MODULATED PHASES IN THIN FERROELECTRIC LIQUID-CRYSTAL FILMS [J].

HINSHAW, GA ;

PETSCHEK, RG ;

PELCOVITS, RA .

PHYSICAL REVIEW LETTERS, 1988, 60 (18) :1864-1867

[3] TRANSITIONS AND MODULATED PHASES IN CHIRAL TILTED SMECTIC LIQUID-CRYSTALS [J].

HINSHAW, GA ;

PETSCHEK, RG .

PHYSICAL REVIEW A, 1989, 39 (11) :5914-5926

[4] MODULATED STRUCTURES IN TILTED CHIRAL SMECTIC FILMS [J].

JACOBS, AE ;

GOLDNER, G ;

MUKAMEL, D .

PHYSICAL REVIEW A, 1992, 45 (08) :5783-5788

[5] TEXTURES IN A CHIRAL SMECTIC LIQUID-CRYSTAL FILM [J].

LANGER, SA ;

SETHNA, JP .

PHYSICAL REVIEW A, 1986, 34 (06) :5035-5046

[6] THEORY OF RIPPLE PHASES OF LIPID BILAYERS [J].

LUBENSKY, TC ;

MACKINTOSH, FC .

PHYSICAL REVIEW LETTERS, 1993, 71 (10) :1565-1568

[7] SPONTANEOUS DIRECTOR ROTATION IN FREELY SUSPENDED FERROELECTRIC LIQUID-CRYSTAL FILMS [J].

MACLENNAN, J .

EUROPHYSICS LETTERS, 1990, 13 (05) :435-440

[8]

MEYER RB, 1975, J PHYS LETT-PARIS, V36, pL69, DOI 10.1051/jphyslet:0197500360306900

[9] SURFACE POLARITY INDUCED DOMAINS IN LIQUID-CRYSTALS [J].

MEYER, RB ;

PERSHAN, PS .

SOLID STATE COMMUNICATIONS, 1973, 13 (07) :989-992

[10]

MULLER K, 1981, STRUCTURAL PHASE TRA, V1

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