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8 papers · 2 filters
Electric Field Induced Patterns and their Temperature Dependence in a Bent-Core Liquid Crystal
Ying Xiang, Yi-Kun Liu, Ágnes Buka +4
Two kinds of electroconvection (EC) patterns in an ether-bridged bent-core nematic liquid crystal material (BCN), which appear in different frequency ranges, are examined and compa…
Influence of the Anisometry of Magnetic Particles on the Isotropic-Nematic Phase Transition
V. Gdovinová, N. Tomašovičová, N. Éber +4
The influence of the shape anisotropy of magnetic particles on the isotropic-nematic phase transition was studied in ferronematics based on the nematic liquid crystal 4-(trans-4-n-…
High concentration ferronematics in low magnetic fields
T. Tóth-Katona, P. Salamon, N. Éber +3
We investigated experimentally the magneto-optical and dielectric properties of magnetic-nanoparticle-doped nematic liquid crystals (ferronematics). Our studies focus on the effect…
Inhibited pattern formation by asymmetrical high voltage excitation in nematic fluids
Peter Salamon, Nandor Eber, Balazs Fekete +1
In contrast to the predictions of the standard theory of electroconvection (EC), our experiments showed that the action of superposed ac and dc voltages rather inhibits pattern for…
Flashing flexodomains and electroconvection rolls in a nematic liquid crystal
Peter Salamon, Nandor Eber, Alexei Krekhov +1
Pattern forming instabilities induced by ultralow frequency sinusoidal voltages were studied in a rod-like nematic liquid crystal by microscopic observations and simultaneous elect…
Mesophase behaviour of binary mixtures of bent-core and calamitic compounds
M. Cvetinov, D. Obadović, M. Stojanović +5
The mesophase behaviour of binary mixtures of bent-core and calamitic liquid crystals is presented. The nematogenic 4,6-dichloro-1,3-phenylene bis[4'-(10-undecen-1-yloxy)-1,1'-biph…