Marjan Krašna (Avtor), Matej Cvetko (Avtor), Milan Ambrožič (Avtor)

Povzetek

Orientational ordering of a homogeneous mixture of uniaxial liquid crystalline(LC) molecules and magnetic nanoparticles (NPs) is studied using the Lebwohl-Lasher lattice model. We consider cases where NPs tend to be oriented perpendicularly to LC molecules due to elastic forces. We study domain-type configurations of ensembles, which are quenched from the isotropic phase. We show that for large enough concentrations of NPs the long range uniaxial nematic ordering is replaced by short range order exhibiting strong biaxiality. This suggests that the impact of NPs on orientational ordering of LCs for appropriate concentrations of NPs is reminiscent to the influence of quenched random fields which locally enforce a biaxial ordering.

Ključne besede

tekoči kristali;nanodelci;nered;liquid crystals;nanoparticles;disorder;orientational order;quenched disorder;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UM FNM - Fakulteta za naravoslovje in matematiko
UDK: 620.1/.2
COBISS: 17869320 Povezava se bo odprla v novem oknu
ISSN: Y506-6603
Št. ogledov: 860
Št. prenosov: 323
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: tekoči kristali;nanodelci;nered. orientacijski red;
URN: URN:SI:UM:
Vrsta dela (COBISS): Znanstveno delo
Strani: str. 1-7
Letnik: ǂVol. ǂ6
Zvezek: ǂno. ǂ74
Čas izdaje: 2010
DOI: 10.3762/bjoc.6.74
ID: 10851691