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Planar-fingerprint transition in a thermoreversible liquid crystalline gel

URN to cite this document: urn:nbn:de:bvb:703-epub-3996-8

Title data

de Lózar, Alberto ; Schöpf, Wolfgang ; Rehberg, Ingo ; Lafuente, Oscar ; Lattermann, Günter:
Planar-fingerprint transition in a thermoreversible liquid crystalline gel.
In: Physical Review E. Vol. 71 (May 2005) Issue 5 . - Art. Nr. 051707.
ISSN 1550-2376
DOI der Verlagsversion: https://doi.org/10.1103/PhysRevE.71.051707

Format:	PDF
Name:	PhysRevE.71.051707.pdf
Version:	Published Version
Available under License	German copyright law. This contribution is freely accessible with the consent of the copyright holder on the basis of an (DFG-funded) alliance or national license. The document may be used free of charge for personal use. In addition, the reproduction, editing, distribution and any kind of exploitation require the written consent of the respective rights holder.

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Abstract

A thermoreversible (physical) gel consisting of a nematic liquid crystal mixed with a small quantity of a chiral organogelator is investigated in the planar configuration. The response of the system to an external electric field reveals multistability within a small hysteresis. The relaxation of the liquid crystal under this field is characterized by two different time scales: a fast one that is connected to the tilt of the director field, and a slow one that describes the reorientation of the chiral structure. In the first case, the relaxation is nonexponential and can be described by a Kohlrausch-Williams-Watts law with a stretching parameter of 0.5.

Further data

Item Type:	Article in a journal
Keywords:	Liquid crystals; Orientational order of liquid crystals, electric and magnetic field effects on order; Transitions in liquid crystals; Physical gels and microgels
DDC Subjects:	500 Science > 530 Physics
Institutions of the University:	Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Former Professors > Chair Experimental Physics V - Univ.-Prof. Dr. Ingo Rehberg Profile Fields > Advanced Fields > Nonlinear Dynamics Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V Profile Fields Profile Fields > Advanced Fields Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Former Professors
Language:	English
Originates at UBT:	Yes
URN:	urn:nbn:de:bvb:703-epub-3996-8
Date Deposited:	28 Jan 2019 14:04
Last Modified:	06 Jul 2020 10:30
URI:	https://epub.uni-bayreuth.de/id/eprint/3996

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