Nucleation of filaments of the TGBA phase in free-standing films
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00489701" target="_blank" >RIV/68378271:_____/18:00489701 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1080/02678292.2017.1307465" target="_blank" >http://dx.doi.org/10.1080/02678292.2017.1307465</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/02678292.2017.1307465" target="_blank" >10.1080/02678292.2017.1307465</a>
Alternative languages
Result language
angličtina
Original language name
Nucleation of filaments of the TGBA phase in free-standing films
Original language description
A model of filament nucleation in the twist grain boundary A (TGBA) phase in free-standing smectic films is proposed. It is based on a concept of finite blocks of parallel smectic layers forming a helical structure in the interior of a film. In our model, the blocks resemble twin-like domains in smectic-A liquid crystal. The blocks are mediated to surrounding smectic layers in film either continuously (coherent twin boundary) or discontinuously via dislocation loops wrapping up blocks. Edge components of dislocation loops form incoherent twin boundary. Screw components forming twist grain boundary connect neighbour blocks among themselves. Nucleation of TGBA filament in a film is treated using a simplified model based on isotropic smectic-A elastic theory. Discussion showed that filaments can be nucleated just below the transition temperature from the isotropic to the TGBA phase under slow temperature decrease. The nucleation of dislocation loops is possible due to low compression modulus of material which can be expected just below the transition temperature.
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
20303 - Thermodynamics
Result continuities
Project
<a href="/en/project/GA15-02843S" target="_blank" >GA15-02843S: Hybrid and composite systems based on mesogenic compounds and nanoparticles</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Liquid Crystals
ISSN
0267-8292
e-ISSN
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Volume of the periodical
45
Issue of the periodical within the volume
2
Country of publishing house
GB - UNITED KINGDOM
Number of pages
7
Pages from-to
173-179
UT code for WoS article
000425784500001
EID of the result in the Scopus database
2-s2.0-85016129138