Ultra-short helix pitch and spiral ordering in cholesteric liquid crystal revealed by resonant soft X-ray scattering
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00556090" target="_blank" >RIV/68378271:_____/22:00556090 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11104/0330468" target="_blank" >http://hdl.handle.net/11104/0330468</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d1sm01543e" target="_blank" >10.1039/d1sm01543e</a>
Alternative languages
Result language
angličtina
Original language name
Ultra-short helix pitch and spiral ordering in cholesteric liquid crystal revealed by resonant soft X-ray scattering
Original language description
The spontaneous formation of chiral structures offers a variety of liquid crystals phases that could be further tailored for practical applications. In our work, the characteristic features of spiral ordering in the cholesteric phase of compound EZL10/10 were evaluated. To disclose resonant reflections related to a nanoscale helix pitch, resonant soft X-ray scattering at the carbon K edge was employed. The angular positions of the observed scattering peaks reveal a half-pitch of the spiral ordering 52 nm indicating the full pitch of about 104 nm at room temperature. No scattering peaks were detectable in the isotropic phase at higher temperatures. The broadening of the peaks points to a presence of coherently scattering domains formed by cholesteric spirals with lengths of about five pitches. The characteristic lengths extracted from the resonant soft X-ray scattering experiment agree well with the periodicity observed in the cholesteric phase by means of atomic force microscopy.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
<a href="/en/project/LTC19051" target="_blank" >LTC19051: Self-organised molecular materials and nanocomposites in restricted geometries</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Soft Matter
ISSN
1744-683X
e-ISSN
1744-6848
Volume of the periodical
18
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
89-96
UT code for WoS article
000726857100001
EID of the result in the Scopus database
2-s2.0-85121773955