Pregled bibliografske jedinice broj: 965614
Temperature Dependence of the Birefringence and the Electroclinic Effect in the Twist-Bend Nematic Phase
Temperature Dependence of the Birefringence and the Electroclinic Effect in the Twist-Bend Nematic Phase // 27th International Liquid Crystal Conference (ILCC 2018)
Kyoto, Japan, 2018. (predavanje, međunarodna recenzija, neobjavljeni rad, znanstveni)
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Naslov
Temperature Dependence of the Birefringence and the Electroclinic Effect in the Twist-Bend Nematic Phase
Autori
Dozov, I. ; Davidson, P. ; Luckhurst, G. R. ; Dokli, Irena ; Knežević, Anamarija ; Lesac, Andreja ; Meyer, M.
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, neobjavljeni rad, znanstveni
Skup
27th International Liquid Crystal Conference (ILCC 2018)
Mjesto i datum
Kyoto, Japan, 22.07.2018. - 27.07.2018
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
twist-bend nematic phase ; homeotropic alignment ; birefringence ; electroclinic effect
Sažetak
The recently discovered twist-bend nematic (NTB) phase [1] has attracted much attention with its spontaneous bend of the director field and its heliconical structure with a doubly degenerate chirality. Despite the sustained experimental and theoretical investigation of newly synthesized NTB materials, the main structural characteristics (the pitch, p, and the conical angle, q) and elastic properties of the phase have yet rarely been determined. Here we study experimentally the temperature dependence of the birefringence and the ECE(NTB) response in three different NTB materials, the bimesogens. We compare the experimental dependences of q(T) and p(T) with the theoretically predicted behavior. The agreement of the experimental results with the theory is only qualitative, suggesting the need to improve further the theoretical models.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Projekti:
IP-2014-09-1525 - Kiralnost od akiralnih tekućih kristala (CALC) (Lesac, Andreja, HRZZ - 2014-09) ( CroRIS)
Ustanove:
Institut "Ruđer Bošković", Zagreb