Polona Aupič (Avtor), Tilen Potisk (Avtor), Daniel Svenšek (Avtor), Gregor Skačej (Avtor)

Povzetek

In the search for alternative, environmentally friendly refrigeration technologies, caloric effects play an important role. Over the past years, liquid crystals have emerged as promising caloric materials. Here, we present a molecular simulation study of the electrocaloric and magnetocaloric effect in liquid crystals exhibiting a nematic–isotropic phase transition. The indirect approach for determining the caloric response is used in combination with molecular dynamics simulations based on the Gay–Berne model. The simulations confirm that the largest response is present at temperatures just above the phase transition and predict the magnitude of the electrocaloric response to be ∼1.6 kJ/kg for an applied electric field of 1600 kV/cm. A much weaker magnetocaloric response is predicted, ∼0.4 kJ/kg for an applied magnetic field of 200 T, indicating that electric fields are much more promising for use in applications than magnetic fields.

Ključne besede

molekulske simulacije;molekulska dinamika;tekoči kristali;elektrokalorični pojav;molecular simulations;molecular dynamics;liquid crystals;electrocaloric effect;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FMF - Fakulteta za matematiko in fiziko
UDK: 536.91
COBISS: 243741955 Povezava se bo odprla v novem oknu
ISSN: 0021-9606
Št. ogledov: 111
Št. prenosov: 59
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: molekulske simulacije;molekulska dinamika;tekoči kristali;elektrokalorični pojav;
Vrsta dela (COBISS): Članek v reviji
Strani: 044902-1-044902-7
Letnik: ǂVol. ǂ163
Zvezek: ǂiss. ǂ4
Čas izdaje: Jul. 2025
DOI: 10.1063/5.0287354
ID: 26875284