6 papers
Mirror vs. inversion symmetry breaking in mesogenic dimers: NTB vs. NF phase
MaÅgorzata Bakiera, Jakub Karcz, Damian Pociecha +4
The recently discovered twist-bend nematic NTB and ferroelectric nematic NF phases are distinct examples of spontaneous symmetry breaking in liquid crystals. Here, we report the oc…
Helix alignment, chevrons, and edge dislocations in twist-bend ferroelectric nematics
Bijaya Basnet, Priyanka Kumari, Sathyanarayana Paladugu +6
We explore surface alignment and edge dislocations in the recently discovered twist-bend ferroelectric nematic, NTBF, in which the vector of spontaneous polarization follows an obl…
Ferroelectricity in the nematic liquid crystal under the direct current electric field
Mateusz Mrukiewicz, PaweÅ Perkowski, Jakub Karcz +1
We investigated the electrical properties of the liquid crystal compound, known as an RM734, exhibiting a ferroelectric nematic phase. The influence of alternating (AC) and direct…
Dual tunability of selective reflection by light and electric field for self-organizing materials
Mateusz Mrukiewicz, Martin Cigl, PaweÅ Perkowski +3
The oblique helicoidal structure is formed in right-angle cholesterics under the applied electric field. The electric field changes the pitch and cone angle but preserves the singl…
Spontaneous polar and chiral symmetry breaking in ordered fluids -- heliconical ferroelectric nematic phases
Jakub Karcz, Jakub Herman, Natan RychÅowicz +5
It is known that the chiral interaction described by Dzyaloshinskii-Moriya (DMI) term lead to the plethora of topological structures of magnetic spins, such as helical or skyrmion…
Spontaneous helix formation in polar smectic phase
Ewa Gorecka, Magdalena Majewska, Ladislav Fekete +4
In soft ferroelectric crystals, the depolarization field can be reduced by periodic distortion of the polarization direction. In the polar nematic and tilted smectic phases, this p…