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Ferro- and antiferroelectric properties of Langmuir-Blodgett films composed of mesogenic bent-core molecules (Articolo in rivista)
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- Ferro- and antiferroelectric properties of Langmuir-Blodgett films composed of mesogenic bent-core molecules (Articolo in rivista) (literal)
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- 2006-01-01T00:00:00+01:00 (literal)
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Geivandov, AR; Palto, SP; Yudin, SG; Blinov, LM; Pelzl, G; Weissflog, W (2006)
Ferro- and antiferroelectric properties of Langmuir-Blodgett films composed of mesogenic bent-core molecules
in Ferroelectrics (Print)
(literal)
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- Geivandov, AR; Palto, SP; Yudin, SG; Blinov, LM; Pelzl, G; Weissflog, W (literal)
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- Russian Acad Sci, Inst Crystallog, Moscow 119333, Russia; Univ Calabria, Dept Phys, INFM, LICRYL, I-87036 Arcavacata Di Rende, CS, Italy; MLU, Inst Chem Phys, D-06108 Halle, S, Germany (literal)
- Titolo
- Ferro- and antiferroelectric properties of Langmuir-Blodgett films composed of mesogenic bent-core molecules (literal)
- Abstract
- A bent-core mesogenic compound was used for preparation of thin solid Langmuir films (25-100 nm) that were transferred onto glass substrates and supplied with Al electrodes evaporated in vacuum. The Langmuir-Blodgett technique allowed us studying the thin polar films of the banana-shaped liquid crystal in sandwich geometry that keep amazing integrity on heating, even up to high-temperature B-2 phase, and show antiferroelectric and ferroelectric properties, which depend on film thickness. The magnitude of the measured switched polarization (400 nC/cm(2)) is similar to that of the bulk material. The strong confinement of film results in high coercive field which reaches the value of 10(8) V/m for the thinnest film. The investigations of dielectric properties are reported. (literal)
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