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Orientational and structural properties of ferroelectric liquid crystal with broad temperature range of the SmC* phase by 13C NMR, x-ray scattering and dielectric spectroscopy

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F09%3A00322212" target="_blank" >RIV/68378271:_____/09:00322212 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Orientational and structural properties of ferroelectric liquid crystal with broad temperature range of the SmC* phase by 13C NMR, x-ray scattering and dielectric spectroscopy

  • Original language description

    Thermotropic liquid crystalline (LC) materials laterally substituted by a methyl group on the aromatic ring of the alkoxybenzoate unit far from the chiral centre exhibit a very broad temperature range in the ferroelectric smectic C* (SmC*) phase on cooling with a very high spontaneous polarization and tilt angle at saturation. LC material, representative of this category of LCs, has been studied by solid state 13C-NMR, SAXS, dielectric spectroscopy and optical methods. Values of the spontaneous tilt angle measured optically are compared to those determined from the x-ray data and discussed. 13C-NMR data allowed to get the information about the degree of orientational order of the SmC* phase and revealed the complete unwinding of the helical axis at themagnetic field of 9.4 T. This result is discussed in the framework of recent publications on the effect of the magnetic field on the supra-molecular structure of the SmC* phase.

  • Czech name

    Orientační a strukturní vlastnosti feroelektrických kapalných krystalů se širokou oblastí existence SmC* fáze studované pomocí 13C NMR, roentgenové difrakce a dielektrické spektroskopie

  • Czech description

    Termotropní kapalně krystalické materiály laterálně substituované methyl skupinou na aromatickém kruhu alkoxy benzoové jednotky vzdálené od chirálního centra vykazují feroelektrickou smektickou C* fázi při chlazení ve velmi širokém rozsahu teplot. Tyto materiály byly studovány pomocí 13C NMR spektroskopie, roentgenové difrakční spektroskopie, dielektrické spektroskopie a optických metod. Hodnoty úhlu náklonu molekul v smektické fázi měřené opticky byly srovnány s těmito hodnotami zjištěnými pomocí roentgenové difrakční spektroskopie a diskutovány.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BM - Solid-state physics and magnetism

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2009

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Physics-Condensed Matter

  • ISSN

    0953-8984

  • e-ISSN

  • Volume of the periodical

    21

  • Issue of the periodical within the volume

    3

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    8

  • Pages from-to

  • UT code for WoS article

    000261833600019

  • EID of the result in the Scopus database