22 citations · 35 across the 10 of their papers we have counts for
11 papers
Mirror vs. inversion symmetry breaking in mesogenic dimers: NTB vs. NF phase
Małgorzata 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, Paweł 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, Paweł 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 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…
Spontaneous polar and chiral symmetry breaking in ordered fluids -- heliconical ferroelectric nematic phases
Jakub Karcz, Jakub Herman, Natan Rychłowicz +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…
Mixing Twist-Bend and Ferroelectric nematic liquid crystals
Abinash Barthakur, Jakub Karcz, Przemyslaw Kula +1
Twist-bend (Ntb) and ferroelectric (NF) nematic liquid crystals exhibit several novel effects and new physical properties. The question of what happens in binary mixtures is intere…
Critical splay fluctuations and colossal flexoelectric effect above non-polar to polar nematic phase transition
Abinash Barthakur, Jakub Karcz, Przemyslaw Kula +1
The recent discovery of nematic liquid crystals with polar order (ferroelectric nematic) has created immense interest. Despite intensive research, several physical properties of th…
Giant electroviscous effects in a ferroelectric nematic liquid crystal
M. Praveen Kumar, Jakub Karcz, Przemyslaw Kula +2
The electroviscous effect deals with the change in the viscosity of fluids due to an external electric field. Here, we report experimental studies on the electroviscous effects in…
Increased intermolecular interactions and cluster formation at the onset of the twist-bend nematic phase in thioether cyanobiphenyl-based liquid crystal dimers
Katarzyna Merkel, Barbara Loska, Yuki Arakawa +3
Infrared spectroscopy (IR) and quantum chemistry calculations, based on density functional theory (DFT) were used to study the structure and the molecular interactions in the nemat…
Dynamics of a sheared twist bend nematic liquid crystal
M. Praveen Kumar, Jakub Karcz, Przemyslaw Kula +1
We study the flow behaviour of a twist-bend nematic liquid crystal. It shows three distinct shear stress () responses in a certain range of temperatures and shear rat…