SURFACE ANCHORING AND GROWTH-PATTERN OF THE FIELD-DRIVEN 1ST-ORDER TRANSITION IN A SMECTIC-A LIQUID-CRYSTAL

被引：55

作者：

LI, ZL

LAVRENTOVICH, OD

机构：

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

[2] KENT STATE UNIV,DEPT PHYS,KENT,OH 44242

[3] ACAD SCI KYYIV,INST PHYS,KYYIV,UKRAINE

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.73.280

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is demonstrated that a surface energy anisotropy (anchoring) defines the growth pattern of the field-induced transition in a smectic-A liquid crystal (Sm-A). The stable domain phase nucleates as rounded domains but expands as stripes. The change in growth pattern is accounted for a large anchoring strength W(a) approximately 10(-2) - 10(-3) J/m2 which is connected with the layer breaking in the vicinity of the cell plates. The temperature dependence of W(a) for Sm-A (substance CCN-47) is measured for the first time: W(a) is similar to (T(A-N) - T)0.65+/-0.09.

引用

页码：280 / 283

页数：4

共 17 条

[1] ALIGNMENT AND DEFECT STRUCTURES IN ORIENTED PHOSPHATIDYLCHOLINE MULTILAYERS [J].