Twisted domains in ferroelectric nematic liquid crystals

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00585828" target="_blank" >RIV/68378271:_____/24:00585828 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0353502" target="_blank" >https://hdl.handle.net/11104/0353502</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.molliq.2024.124873" target="_blank" >10.1016/j.molliq.2024.124873</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Twisted domains in ferroelectric nematic liquid crystals

Popis výsledku v původním jazyce

Ferroelectric nematics present properties promising for applications, which strongly depend on the confinement conditions and the presence of defects. In this work, we have observed and analysed textures in the cells with homogeneous geometry for a ferroelectric nematogen. The studied compound reveals the ferroelectric nematic phase, NF, directly on cooling from the isotropic phase. The NF phase is stable and persists down to the room temperatures. Textures in the homogeneous cell with antiparallel alignment prefer to be arranged in twisted domains with borderlines oriented preferentially in the perpendicular direction with respect to the surface alignment (rubbing direction). We have described these domains and developed a model of 2π disclinations, which are separating the areas with an opposite twist sense. We discussed the character of disclination charge and explained why these disclination lines prefer to be oriented perpendicularly to the rubbing direction.

Název v anglickém jazyce

Twisted domains in ferroelectric nematic liquid crystals

Popis výsledku anglicky

Ferroelectric nematics present properties promising for applications, which strongly depend on the confinement conditions and the presence of defects. In this work, we have observed and analysed textures in the cells with homogeneous geometry for a ferroelectric nematogen. The studied compound reveals the ferroelectric nematic phase, NF, directly on cooling from the isotropic phase. The NF phase is stable and persists down to the room temperatures. Textures in the homogeneous cell with antiparallel alignment prefer to be arranged in twisted domains with borderlines oriented preferentially in the perpendicular direction with respect to the surface alignment (rubbing direction). We have described these domains and developed a model of 2π disclinations, which are separating the areas with an opposite twist sense. We discussed the character of disclination charge and explained why these disclination lines prefer to be oriented perpendicularly to the rubbing direction.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/8I23001" target="_blank" >8I23001: Epoch-making ferroic fluids based multi-functional materials</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Molecular Liquids

ISSN

0167-7322

e-ISSN

1873-3166

Svazek periodika

403

Číslo periodika v rámci svazku

June

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

124873

Kód UT WoS článku

001239709900001

EID výsledku v databázi Scopus

2-s2.0-85192334650