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8 papers · 1 filter
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…
Evolution of shear zones in granular materials
Balazs Szabo, Janos Torok, Ellak Somfai +6
The evolution of wide shear zones (or shear bands) was investigated experimentally and numerically for quasistatic dry granular flows in split bottom shear cells. We compare the be…
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…