Publication Title

Physical Review Letters

Publication Date

7-11-1994

Document Type

Article

DOI

10.1103/PhysRevLett.73.280

Keywords

viscous fingering patterns

Disciplines

Physics

Abstract

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 Wa10-2-10-3 J/m2 which is connected with the layer breaking in the vicinity of the cell plates. The temperature dependence of Wa for Sm-A (substance CCN-47) is measured for the first time: Wa(TA-N-T)0.65±0.09.

Comments

Copyright 1994 American Physical Society. Available on publisher's site at http://dx.doi.org/10.1103/PhysRevLett.73.280.


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