Ferroelectric Nematic-Isotropic Liquid Critical End Point,Physical Review Letters

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Ferroelectric Nematic-Isotropic Liquid Critical End Point
Physical Review Letters ( IF 8.1 ) Pub Date : 2023-05-26 , DOI: 10.1103/physrevlett.130.216802
Jadwiga Szydlowska ₁ , Pawel Majewski ₁ , Mojca Čepič _{2,

3} , Nataša Vaupotič _{2,

4} , Paulina Rybak ₁ , Corrie T Imrie ₅ , Rebecca Walker ₅ , Ewan Cruickshank ₅ , John M D Storey ₅ , Pociecha Damian ₁ , Ewa Gorecka ₁

Affiliation

A critical end point above which an isotropic phase continuously evolves into a polar (ferroelectric) nematic phase with an increasing electric field is found in a ferroelectric nematic liquid crystalline material. The critical end point is approximately 30 K above the zero-field transition temperature from the isotropic to nematic phase and at an electric field of the order of

10 V / μ m

. Such systems are interesting from the application point of view because a strong birefringence can be induced in a broad temperature range in an optically isotropic phase.

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