Defect structures of magnetic nanoparticles in smectic a liquid crystals

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00551355" target="_blank" >RIV/68378271:_____/21:00551355 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/21:10433377

Výsledek na webu

<a href="http://hdl.handle.net/11104/0326941" target="_blank" >http://hdl.handle.net/11104/0326941</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/molecules26185717" target="_blank" >10.3390/molecules26185717</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Defect structures of magnetic nanoparticles in smectic a liquid crystals

Popis výsledku v původním jazyce

Topological defects in anisotropic fluids like liquid crystals serve as a playground for the research of various effects. In this study, we concentrated on a hybrid system of chiral rod-like molecules doped by magnetic nanoparticles. In textures of the smectic A phase, we observed linear defects and found that clusters of nanoparticles promote nucleation of smectic layer de-fects just at the phase transition from the isotropic to the smectic A (SmA) phase. In different geometries, we studied and analysed creation of defects which can be explained by attractive elastic forces between nanoparticles in the SmA phase. On cooling the studied hybrid system, clusters grow up to the critical dimension, and the smectic texture is stabilized. The presented effects are theoretically described and explained if we consider the elastic interaction of two point defects and stabilization of prismatic dislocation loops due to the presence of nanoparticles.

Název v anglickém jazyce

Defect structures of magnetic nanoparticles in smectic a liquid crystals

Popis výsledku anglicky

Topological defects in anisotropic fluids like liquid crystals serve as a playground for the research of various effects. In this study, we concentrated on a hybrid system of chiral rod-like molecules doped by magnetic nanoparticles. In textures of the smectic A phase, we observed linear defects and found that clusters of nanoparticles promote nucleation of smectic layer de-fects just at the phase transition from the isotropic to the smectic A (SmA) phase. In different geometries, we studied and analysed creation of defects which can be explained by attractive elastic forces between nanoparticles in the SmA phase. On cooling the studied hybrid system, clusters grow up to the critical dimension, and the smectic texture is stabilized. The presented effects are theoretically described and explained if we consider the elastic interaction of two point defects and stabilization of prismatic dislocation loops due to the presence of nanoparticles.

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Molecules

ISSN

1420-3049

e-ISSN

1420-3049

Svazek periodika

26

Číslo periodika v rámci svazku

18

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

11

Strana od-do

5717

Kód UT WoS článku

000701773600001

EID výsledku v databázi Scopus

2-s2.0-85115367049