Naslov
Complex temperature dependence of the dielectric response in simple SmC* phases

Autori
Jukić, Dina ; Čepič, Mojca

Izvornik
Soft matter (1744-683X) 1 (2023); 1-5

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Dielectric response ; Polar ; Smectic ; Liquid Crystal

Sažetak
The system under study has a SmA* ↔ SmC* phase sequence, and is described by a basic phenomenological model. However, in contrast to a common approach, changes of the polarisation induced by the external electric field are considered independent of changes of the tilt. As a result, even in the basic model, which does not contain any additional terms usually used to obtain better fits to experimental observations, frequencies of the most of relaxation modes depend on the temperature non-linearly and their dielectric response is not inversely proportional to the frequency of the mode. The behaviour is a direct consequence of chiral piezoelectric coupling, which influences polar properties of the relaxation modes in dependence of the temperature.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA