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Naslov:History-dependent patterns in randomly perturbed nematic liquid crystals
Avtorji:ID Ranjkesh Siahkal, Amid (Avtor)
ID Ambrožič, Milan (Avtor)
ID Cordoyiannis, George (Avtor)
ID Kutnjak, Zdravko (Avtor)
ID Kralj, Samo (Avtor)
Datoteke:.pdf Advances_in_Condensed_Matter_Physics_2013_Ranjkesh_et_al._History-Dependent_Patterns_in_Randomly_Perturbed_Nematic_Liquid_Crystals.pdf (2,31 MB)
MD5: 2B832B03F418A4AD9E05188A238CF0EA
 
URL http://www.hindawi.com/journals/acmp/2013/505219/
 
Jezik:Angleški jezik
Vrsta gradiva:Znanstveno delo
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FNM - Fakulteta za naravoslovje in matematiko
Opis:We study the characteristics of nematic structures in a randomly perturbed nematic liquid crystal (LC) phase. We focus on the impact of the samples history on the universal behavior. The obtained results are of interest for every randomly perturbed system exhibiting a continuous symmetry-breaking phase transition. A semimicroscopic lattice simulation is used where the LC molecules are treated as cylindrically symmetric, rod-like objects interacting via a Lebwohl-Lasher (LL) interaction. Pure LC systems exhibit a first order phase transition into the orientationally ordered nematic phase at T = Tc on lowering the temperature T. The orientational ordering of LC molecules is perturbed by the quenched, randomly distributed rod-like impurities of concentration p. Their orientation is randomly distributed, and they are coupled with the LC molecules via an LL-type interaction. Only concentrations below the percolation threshold are considered. The key macroscopic characteristics of perturbed LC structures in the symmetry-broken nematic phase are analyzed for two qualitatively different histories at T << Tc. We demonstrate that, for a weak enough interaction among the LC molecules and impurities, qualitatively different history-dependent states could be obtained. These states could exhibit either short-range, quasi-long-range, or even long-range order.
Ključne besede:liquid crystals
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Leto izida:2013
Št. strani:str. 1-10
Številčenje:Letn. 2013
PID:20.500.12556/DKUM-66177 Novo okno
ISSN:1687-8108
UDK:53
COBISS.SI-ID:26806567 Novo okno
DOI:10.1155/2013/505219 Novo okno
ISSN pri članku:1687-8108
NUK URN:URN:SI:UM:DK:KACF0OLJ
Datum objave v DKUM:14.06.2017
Število ogledov:2300
Število prenosov:340
Metapodatki:XML DC-XML DC-RDF
Področja:Ostalo
:
RANJKESH SIAHKAL, Amid, AMBROŽIČ, Milan, CORDOYIANNIS, George, KUTNJAK, Zdravko in KRALJ, Samo, 2013, History-dependent patterns in randomly perturbed nematic liquid crystals. Advances in Condensed Matter Physics [na spletu]. 2013. Vol. 2013, p. 1–10. [Dostopano 2 april 2025]. DOI 10.1155/2013/505219. Pridobljeno s: https://dk.um.si/IzpisGradiva.php?lang=slv&id=66177
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Gradivo je del revije

Naslov:Advances in Condensed Matter Physics
Skrajšan naslov:Adv. Condens. Matter Phys.
Založnik:Hindawi Publishing Corporation
ISSN:1687-8108
COBISS.SI-ID:23812647 Novo okno

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:14.06.2017

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:tekoči kristali


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