Rotational Solid Friction of a Nematic Liquid Crystal

被引：3

作者：

Blanc, Christophe ^{[1
]}

Nespoulous, Mathieu

Angot, Emmanuel

Nobili, Maurizio

机构：

[1] CNRS, LCVN, UMR5587, F-34095 Montpellier, France

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 12期

关键词：

ANCHORING ENERGY; STATIC FRICTION; CONTACT LINE; SUBSTRATE; INTERFACE; SUPERCONDUCTORS; MEDIA; CREEP; FILMS;

D O I：

10.1103/PhysRevLett.105.127801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Liquid crystal defects are used as probes to study the local reorientation dynamics of the nematic surface director on SiOx alignment layers. The tracking of the defect's motion reveals the presence of solid friction forces, unexpected in this complex viscous fluid. We identify the director pinning due to a surface quenched disorder as a possible mechanism that gives rise to the measured solid friction.

引用

页数：4

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