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Planar-fingerprint transition in a thermoreversible liquid crystalline gel

Title data

de Lózar, Alberto ; Schöpf, Wolfgang ; Rehberg, Ingo ; Lafuente Cerdá, Óscar ; 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: https://doi.org/10.1103/PhysRevE.71.051707

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Abstract in another language

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
Refereed: Yes
Keywords: Liquid crystals; Orientational order of liquid crystals, electric and magnetic field effects on order; Transitions in liquid crystals; Physical gels and microgels
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V > 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
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 02 Oct 2018 10:06
Last Modified: 18 Feb 2019 09:15
URI: https://eref.uni-bayreuth.de/id/eprint/42969