REAL

Inhibited pattern formation by asymmetrical high-voltage excitation in nematic fluids

Salamon, Péter and Éber, Nándor and Fekete, B. and Buka, Ágnes (2014) Inhibited pattern formation by asymmetrical high-voltage excitation in nematic fluids. PHYSICAL REVIEW E - STATISTICAL, NONLINEAR AND SOFT MATTER PHYSICS (2001-2015), 90 (2). ISSN 1539-3755

[img]
Preview
Text
1409.1101.pdf
Available under License Creative Commons Attribution.

Download (485kB) | Preview

Abstract

In contrast to the predictions of the standard theory of electroconvection (EC), our experiments showed that the action of superposed ac and dc voltages rather inhibits pattern formation than favours the emergence of instabilities; the patternless region may extend to much higher voltages than the individual ac or dc thresholds. The pattern formation induced by such asymmetrical voltage was explored in a nematic liquid crystal in a wide frequency range. The findings could be qualitatively explained for the conductive EC, but represent a challenging problem for the dielectric EC.

Item Type: Article
Subjects: Q Science / természettudomány > QC Physics / fizika
SWORD Depositor: MTMT SWORD
Depositing User: MTMT SWORD
Date Deposited: 26 Feb 2024 15:39
Last Modified: 26 Feb 2024 15:39
URI: https://real.mtak.hu/id/eprint/189059

Actions (login required)

Edit Item Edit Item