Zobrazeno 1 - 10
of 40
pro vyhledávání: '"H. P. Hinov"'
Autor:
H. P. Hinov
Publikováno v:
Molecular Crystals and Liquid Crystals. 524:26-35
The coexistence of the flexo-dielectric walls and the flexoelectric domains of Vistin'-Pikin-Bobylev has been again observed in the nematic methoxybenzylidene-parabutylaniline (MBBA). On the basis of the first observation of such coexistence by Visti
Autor:
H. P. Hinov, Y. G. Marinov
Publikováno v:
The European Physical Journal E. 31:179-189
Precise solutions for the threshold voltage U(c) and wave number q(c) that feature the appearance of longitudinal flexoelectric domains of Vistin'-Pikin-Bobylev at strong anchoring have been derived. Based on the formulated expressions, we present an
Autor:
Yordan G. Marinov, H. P. Hinov
Publikováno v:
Molecular Crystals and Liquid Crystals. 503:45-68
The solution of the Euler–Lagrange equations for the director components n y = f1(z)sinqy and n z = f2(z)cosqy, where q is the wave number of the flexoelectric domains of Vistin'–Pikin–Bobylev, has been for the first time exactly found with the
Autor:
H. P. Hinov
Publikováno v:
Crystal Research and Technology. 44:327-330
The flexo-dielectric behaviour of a homeotropic MBBA nematic layer has been experimentally studied. Asymmetric strong-weak anchoring of the homeotropic nematic layer was achieved by treating the glass plates – one of them with lecithin ensuring the
Publikováno v:
Liquid Crystals. 30:1293-1317
Parallel surface-induced flexoelectric domains (flexo-dielectric walls) have been further studied using new tools—a shadowgraph technique and computer processing of the most important images. It was unambiguously proved that the domains are a manif
Publikováno v:
Liquid Crystals. 30:945-959
Surface irregularities (for example, rubbing-induced domains, and bumps) have been observed in MBBA nematic cells after special treatment of the electrodes using a conventional soap. Various techniques such as polarizing microscopy, the shadowgraph t
Publikováno v:
The journal of physical chemistry. B. 118(15)
Formation of new transient walls by a constant magnetic field at the Fréedericsz critical value has been observed. They are oriented along the initial alignment of the nematic phase of phenyl benzoates and appeared only in relatively thick samples w
Autor:
H. P. Hinov, L. Todorova
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 350:237-263
An experimental phenomenon - formation of small (3–5 microns) sessile water droplets attached to the glass plates of the liquid crystal cells with either 96.42 wt% Merck 997–3.58 wt% water mixture or 96.80 wt% Liquid crystal 440–3.20 wt% water
Autor:
Y. G. Marinov, H. P. Hinov, G. B. Hadjichristov, A. G. Petrov, Uma S. Hiremath, C. V. Yelamaggad, Angelos Angelopoulos, Takis Fildisis
Publikováno v:
AIP Conference Proceedings.
Various low temperature nematic mixtures containing up to 8 wt% of sickle bent‐core‐calamitic 4‐((3‐(4‐(4‐(decyloxy)benzoyloxy)benzoyloxy)phenylimino)methyl)‐3‐hydroxyphenyl 4‐(6‐(4′‐cyanobiphenyl‐4‐yloxy)hexyloxy) benzoat
Autor:
H. P. Hinov, Yordan G. Marinov, Channabasaveshwar V. Yelamaggad, K. S. Krishnamurthy, Uma S. Hiremath, Alexander G. Petrov, Pramoda Kumar
Publikováno v:
The journal of physical chemistry. B. 113(27)
We report on the converse flexoelectric effect in two bent-core nematic liquid crystals with opposite dielectric anisotropies. The results are based on electro-optic investigations of inplane field-driven distortions in homeotropic samples (the Helfr