130 citations · 322 across the 18 of their papers we have counts for
19 papers
Realignment of ferroelectric nematic by photoinduced electric field
Sathyanarayana Paladugu, Oleksandr Kurochkin, Ruslan Kravchuk +5
Liquid crystal displays (LCDs) employ thin pixels of a paraelectric nematic, confined between two glass plates with transparent indium tin oxide (ITO) electrodes. A voltage applied…
Landau theory applied to antiferroelectric ordering in ferroelectric nematic liquid crystals
Manisha Badu, Arjun Ghimire, Milon +6
The polarization and mass density modulation associated with antiferroelectric ordering in two ferroelectric nematic liquid crystals, a prototypical single compound (referred to as…
Electrically controlled propulsion of skyrmions in chiral nematic
Oleg D. Lavrentovich
Design of soft matter capable of controllable microscale dynamics is a frontier of modern science. Jiahao Chen et al. demonstrate that an electric field can drive particle-like sol…
Deformed states in paraelectric and ferroelectric nematic liquid crystals
Oleg D. Lavrentovich
Ground states of materials with orientational order ranging from solid ferromagnets and ferroelectrics to liquid crystals often contain spatially varying vector-like order paramete…
Rheological properties and shear-induced structures of ferroelectric nematic liquid crystals
Ashish Chandra Das, Sathyanarayana Paladugu, Oleg D. Lavrentovich
Recently discovered ferroelectric nematic (NF) liquid crystals are fluids with a polar orientational order. The electric polarization vector can be aligned by an electric field and…
Polar and apolar light-induced alignment of ferroelectric nematic at photosensitive polymer substrate
Ruslan Kravchuk, Oleksandr Kurochkin, Vassili G. Nazarenko +4
Surface alignment of a recently discovered ferroelectric nematic liquid crystal (NF) is usually achieved by buffed polymer films, which produce a unidirectional polar alignment of…
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…
Sub-microsecond electric switching of large birefringence in the isotropic phase of ferroelectric nematics
Kamal Thapa, Sathyanarayana Paladugu, Oleg D. Lavrentovich
Conventional nonpolar nematic liquid crystals, widely known for their successful display applications, are not well-suited for fast electro-optical switching because of the slow (m…
Liquid crystalline structures formed by sphere-rod amphiphilic molecules in solvents
Nilanthi P. Haputhanthrige, Yifan Zhou, Jingfan Wei +3
Self-assembly of amphiphilic molecules is an important phenomenon attracting a broad range of research. In this work, we study the self-assembly of KTOF4 sphere-rod amphiphilic mol…
Director-layer dynamics in the antiferroelectric smectic-ZA phase of a ferroelectric nematic liquid crystal
Arjun Ghimire, Bijaya Basnet, Hao Wang +7
A dynamic light scattering study of director-layer fluctuations in the antiferroelectric smectic-ZA phase of the ferroelectric nematic liquid crystal DIO is reported. The dynamics…
Directional Swimming of B. Subtilis Bacteria Near a Switchable Polar Surface
Mahesha Kodithuwakku Arachchige, Zakaria Siddiquee, Hend Baza +3
The dynamics of swimming bacteria depend on the properties of their habitat media. Recently it was shown that the motion of swimming bacteria dispersed directly in a non-toxic wate…
Periodic splay Fréedericksz transitions in a ferroelectric nematic
Bijaya Basnet, Sathyanarayana Paladugu, Oleksandr Kurochkin +5
Electric field-induced splay of molecular orientation, called the Fréedericksz transition, is a fundamental electro-optic phenomenon in nonpolar nematic liquid crystals. In a ferro…
Effects of Photopatterning Conditions on Azimuthal Surface Anchoring Strength
Nilanthi P. Haputhanthrige, Mojtaba Rajabi, Oleg D. Lavrentovich
Spatially varying alignment of liquid crystals is essential for research and applications. One widely used method is based on the photopatterning of thin layers of azo-dye molecule…
Microsecond electro-optic switching in the nematic phase of a ferroelectric nematic liquid crystal
Kamal Thapa, Sathyanarayana Paladugu, Oleg D. Lavrentovich
Nematic liquid crystals exhibit nanosecond electro-optic response to an applied electric field which modifies the degree of orientational order without realigning the molecular ori…
Pitch tuning induced by optical torque in heliconical cholesteric liquid crystals
G. Nava, F. Ciciulla, O. S. Iadlovska +3
Heliconical cholesteric liquid crystals are expected to be more sensitive to torque induced by light field since their structure allows both bend and twist in molecular orientation…
Fluctuation modes of a twist-bend nematic liquid crystal
Z. Parsouzi. A. Sh, S. M. Shamid, V. Borshch +10
We report a dynamic light scattering study of the fluctuation modes in a thermotropic liquid crystalline mixture of monomer and dimer compounds that exhibits the twist-bend nematic…
Nanostructure of edge dislocations in a smectic C* liquid crystal
C. Zhang, A. M. Grubb, A. J. Seed +3
We report on the first direct nanoscale imaging of elementary edge dislocations in a thermotropic chiral smectic C liquid crystal with the Burgers vector equal to one smectic layer…
Twist-bend nematic liquid crystals in high magnetic fields
P. K. Challa, V. Borshch, O. Parri +5
We present magneto-optic measurements on two materials that form the recently discovered twist-bend nematic (Ntb) phase. This intriguing state of matter represents a new fluid phas…
Effect of collective molecular reorientations on Brownian motion of colloids in nematic liquid crystal
Taras Turiv, Israel Lazo, Alexander Brodin +4
In the simplest realization of Brownian motion, a colloidal sphere moves randomly in an isotropic fluid; its mean squared displacement (MSD) grows linearly with time . Br…