SHEAR ALIGNMENT AND INSTABILITY OF SMECTIC PHASES

被引：63

作者：

GOULIAN, M

MILNER, ST

机构：

[1] Exxon Research and Engineering Company, Annandale

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.74.1775

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider the shear flow of well-aligned one-component smectic phases, such as thermotropic smectics and lamellar diblock copolymers, below the critical region. We show that, as a result of thermal fluctuations of the layers, parallel c alignment is generically unstable and perpendicular a alignment is stable against long-wavelength undulations. We also find, surprisingly, that both a and c alignments are stable for a narrow window of values for the anisotropic viscosity. © 1995 The American Physical Society.

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页码：1775 / 1778

页数：4

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