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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2017, Volume 106, Issue 6, Pages 358–364
DOI: https://doi.org/10.7868/S0370274X17180072
(Mi jetpl5373)
 

This article is cited in 12 scientific papers (total in 12 papers)

CONDENSED MATTER

Orientational structures in nematic droplets with conical boundary conditions

V. Yu. Rudyaka, M. N. Krakhalevbc, O. O. Prishchepacb, V. S. Sutorminc, A. V. Emelyanenkoa, V. Ya. Zyryanovc

a Faculty of Physics, Lomonosov Moscow State University, Moscow, Russia
b Institute of Engineering Physics and Radioelectronics, Siberian Federal University, Krasnoyarsk
c Kirensky Institute of Physics, Federal Research Center - Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russia
References:
Abstract: Oblate nematic droplets encapsulated in a polymer specifying conical boundary conditions have been considered. Calculations by the extended Frank elastic continuum approach show that a number of various structures can be formed in such droplets under the variation of their size. Polarizing optical microscopy studies of composite film samples confirm the results of calculation and demonstrate the formation of the following orientational structures in the considered system: (i) a radial-bipolar structure with a twisted hedgehog defect and two hyperbolic boojums, (ii) an axial-bipolar structure with a circular disclination and two radial boojums, and (iii) a structure with a hedgehog defect, a hyperbolic boojum, and a radial boojum. Such a diversity of possible topologies of droplets is due to a complex balance between the energies of elasticity of the director field, disclinations, and anchoring with the surface, which is ensured by conical boundary conditions.
Funding agency Grant number
Russian Foundation for Basic Research 16-42-240704_р_а
16-32-00164_мол_а
15-02-08269_а
15-59-32410_РТ_оми
Received: 24.07.2017
Revised: 24.08.2017
English version:
Journal of Experimental and Theoretical Physics Letters, 2017, Volume 106, Issue 6, Pages 384–389
DOI: https://doi.org/10.1134/S0021364017180102
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: V. Yu. Rudyak, M. N. Krakhalev, O. O. Prishchepa, V. S. Sutormin, A. V. Emelyanenko, V. Ya. Zyryanov, “Orientational structures in nematic droplets with conical boundary conditions”, Pis'ma v Zh. Èksper. Teoret. Fiz., 106:6 (2017), 358–364; JETP Letters, 106:6 (2017), 384–389
Citation in format AMSBIB
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\by V.~Yu.~Rudyak, M.~N.~Krakhalev, O.~O.~Prishchepa, V.~S.~Sutormin, A.~V.~Emelyanenko, V.~Ya.~Zyryanov
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  • This publication is cited in the following 12 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Письма в Журнал экспериментальной и теоретической физики Pis'ma v Zhurnal Иksperimental'noi i Teoreticheskoi Fiziki
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