Surface order reconstruction in nematics

被引：11

作者：

Ayeb, H. ^{[1
,2
]}

Lombardo, G. ^{[3
]}

Ciuchi, F. ^{[3
]}

Hamdi, R. ^{[1
]}

Gharbi, A. ^{[2
]}

Durand, G. ^{[4
]}

Barberi, R. ^{[1
,3
]}

机构：

[1] Univ Calabria, Dept Phys, I-87036 Arcavacata Di Rende, Italy

[2] Univ Tunis El Manar, Fac Sci Tunis, Lab Phys Mat Molle, Dept Phys, Tunis 2092, Tunisia

[3] Univ Calabria, CNR IPCF Licryl, I-87036 Arcavacata Di Rende, Italy

[4] Univ Paris 11, CNRS, Lab Phys Solides, LA2, F-91405 Orsay, France

来源：

APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 10期

关键词：

LIQUID-CRYSTAL; TRANSITION; DEVICE; CELL;

D O I：

10.1063/1.3455885

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Investigations on pi-cell, a sandwich cell with the director rotating by 180 degrees demonstrate the possibility to obtain nematic transitions between two textures with different topologies, for instance between an untwisted state and a pi-twisted one. These fast textural changes can be obtained by bulk order reconstruction, which allows the director reorientation between two perpendicular directions without macroscopic rotations of the director itself, or by anchoring breaking, which transforms a weak planar anchoring in a homeotropic surface state. Now, we demonstrate that order reconstruction close to a boundary surface with strong or infinite anchoring conditions provides transitions equivalent to anchoring breaking. (c) 2010 American Institute of Physics. [doi:10.1063/1.3455885]

引用

页数：3

共 23 条

[1] Metallomesogens as biaxial dopants in a calamitic nematic liquid crystal [J].