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1.


   
    Bipolar configuration with a twisted defect loop in chiral nematic droplets / M. N. Krakhalev [et al.] // 14th Eur. Conf. Liq. Cryst. (ECLC) : conf. programme / чл. нац. орг. и прогр. ком. V. Ya. Zyryanov. - 2017. - Ст. P133. - Библиогр.: 3 . - Poster

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Доп.точки доступа:
Zyryanov, V. Ya. \чл. нац. орг. и прогр. ком.\; Зырянов, Виктор Яковлевич; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Gardymova, A. P.; Zyryanov, V. Ya.; European Conference on Liquid Crystals(14 ; 2017 ; June ; 25-30 ; Moscow); Московский государственный университет им. М.В. Ломоносова
}
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2.


   
    Bipolar configuration with twisted loop defect in chiral nematic droplets under homeotropic surface anchoring / M. N. Krakhalev [et al.] // Sci. Rep. - 2017. - Vol. 7, Is. 1. - Ст. 14582, DOI 10.1038/s41598-017-15049-6. - Cited References: 45. - We are grateful to Dr. Timofeev Ivan Vladimirovich for valuable comments and discussions. This work was supported by the Russian Foundation for Basic Research (RFBR) under Grants Nos 15-02-06924, 16-53-00073, and Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project No. 16-42-240704, and by the Siberian Branch of the Russian Academy of Sciences under Complex Program II.2P 0358-2015-0010. The work of V.Y.R. and À.V.Å. on the simulation of droplet structure and texture was supported by the Russian Science Foundation (project No. 16-43-03010). The work of J.H.L. was supported by the Ministry of Science and Technology of Taiwan (contract No. MOST105-2923-E-006-007). . - ISSN 2045-2322
   Перевод заглавия: Биполярная конфигурация с дефектом в виде закрученной петли в нематических каплях при гомеотропном поверхностном сцеплении
Аннотация: Optical textures and appropriate orientational structures have been studied within droplets of chiral nematic dispersed in polymer assigning the homeotropic anchoring. The helix axis of the chiral structure inside droplets forms the bipolar configuration. The optical droplet textures were analysed in the unpolarised light, analyser switching-off scheme and in crossed polarisers. The twisted loop defect reveals itself convincingly in all schemes. Its appearance at the optical patterns of the chiral nematic droplets has been examined depending on their size and the aspect direction. The existence of the defect has been verified by the structural and optical calculations. The effect of an electric field on both the defect line shape and the orientational structure of chiral nematic has been studied.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center - Krasnoyarsk Scientific Center, Siberian Branch of Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, Russian Federation
Faculty of Physics, Lomonosov Moscow State University, Moscow, Russian Federation
Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan

Доп.точки доступа:
Krakhalev, M. N.; Крахалев, Михаил Николаевич; Gardymova, A. P.; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Rudyak, V. Yu.; Emelyanenko, A. V.; Liu, J. -H.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич
}
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3.


   
    Effect of elastic constants on electrically induced transition in twisted radial cholesteric droplets / V. Y. Rudyak, M. N. Krakhalev, A. P. Gardymova [et al.] // Sci. Rep. - 2022. - Vol. 12, Is. 1. - Ст. 9565, DOI 10.1038/s41598-022-13612-4. - Cited References: 42. - This research was funded by Russian Science Foundation, Grant No. 20-72-10038. The research was carried out using the equipment of the shared research facilities of HPC computing resources at Lomonosov Moscow State University . - ISSN 2045-2322
   Перевод заглавия: Влияние констант упругости на электрически индуцированный переход в закрученных радиальных каплях холестерика
Аннотация: In this work, we investigated the behavior of cholesteric droplets with homeotropic boundary conditions experimentally and by computer simulations. Small droplets forming twisted radial structures were studied. We obtained two different paths of structural transformations under electric field in such droplets. The choice between these paths has probabilistic nature. The ratio between the two transition types was found to be sensitive to the elastic constants of LC forming the droplet. We suggest the principal approach for in situ estimation of ratios between elastic constants in cholesteric LCs deposited in polymer-dispersed LC material and discuss its strong and weak sides.

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Держатели документа:
Faculty of Physics, Lomonosov Moscow State University, Moscow, 119991, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Rudyak, V. Y.; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Gardymova, A. P.; Abdullaev, A. S.; Абдуллаев, Абылгазы Сабиралиевич; Alekseev, A. A.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич
}
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4.


   
    Electrically controlled anchoring transitions induced by ionic surfactants in liquid crystals / V. S. Sutormin [et al.] // Abstracts of 27th International Liquid Crystal Conference (ILCC 2018). - 2018. - Ст. 2-B1-16. - Cited References: 3

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Доп.точки доступа:
Sutormin, V. S.; Сутормин, Виталий Сергеевич; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Gardymova, A. P.; Shabanov, A. V.; Шабанов, Александр Васильевич; Kuz’menok, N.; Bezborodov, V.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; International Liquid Crystal Conference(27 ; 2018 ; July ; 22-27 ; Kyoto, Japan)
}
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5.


   
    Electrically induced transformation of cholesteric droplets under homeotropic boundary conditions / M. N. Krakhalev, A. P. Gardymova, V. Yu. Rudyak [et al.] // J. Mol. Liq. - 2023. - Vol. 385. - Ст. 122379, DOI 10.1016/j.molliq.2023.122379. - Cited References: 37. - This research was funded by Russian Science Foundation, Grant No. 20-72-10038. The research was carried out using the equipment of the shared research facilities of HPC computing resources at Lomonosov Moscow State University . - ISSN 0167-7322. - ISSN 1873-3166
Кл.слова (ненормированные):
Cholesteric droplet -- Orientational structure -- Topological defect -- Electric field -- Structure relaxation
Аннотация: Cholesteric droplets under homeotropic boundary conditions demonstrate a rich variety of possible orientational structures. We have implemented electrically controlled switching of such droplets between two classes of stable states: i) structures with cylindrical cholesteric layers and ii) layer-like structures with one or more λ+1/2-disclinations. Structure relaxation after switching off the voltage proceeded via the fast (less than 1 s), the slow (more than 1 s), and the stabilization stages (~10 hours). We investigated intermediate long-lived metastable states occurring in the relaxation process and explained the formation of various structures in cholesteric droplets. The fast and the slow stages of relaxation were found to be sensitive to the voltage reduction regime. We have determined the combinations of droplet size and voltage reduction regimes leading to the two types of structures after relaxation.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 50/38 Akademgorodok, Krasnoyarsk, 330036, Krasnoyarsk region, Russia
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, 79 Svobodny Pr., Krasnoyarsk, 660041, Krasnoyarsk region, Russia
Faculty of Physics, Moscow State University, 1/2 Leninskiye Gory, Moscow, 119991, Moscow, Russia
P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninsky Pr., Moscow, 119991, Moscow, Russia

Доп.точки доступа:
Krakhalev, M. N.; Крахалев, Михаил Николаевич; Gardymova, A. P.; Гардымова, Анна Петровна; Rudyak, Vladimir Yu.; Barbashov, Vadim A.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич
}
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6.


    Gardymova, A. P.
    Multistability in polymer-dispersed cholesteric liquid crystal film doped with ionic surfactant / A. P. Gardymova, V. Y. Zyryanov, V. A. Loiko // Tech. Phys. Lett. - 2011. - Vol. 37, Is. 9. - P. 805-808, DOI 10.1134/S1063785011090094. - Cited References: 12. - This study was supported in part by the Federal Targeted Program "Scientific and Pedagogical Personnel for Innovative Russia" (project no. P901) and the Siberian Branch of the Russian Academy of Sciences (project nos. 110 and 144). . - ISSN 1063-7850
РУБ Physics, Applied
Рубрики:
REFLECTIVE DISPLAYS
Аннотация: A memory effect has been discovered in composite films based on a polymer containing dispersed cholesteric liquid crystal, which is related to the modification of the surface anchoring by an ionic surfactant under the action of an applied electric field. Parameters of electric signals are selected that ensure the switching of the composite film between some stable states with different levels of optical transmittance.

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Держатели документа:
[Gardymova, A. P.] Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Krasnoyarsk Sci Ctr, Siberian Branch, Krasnoyarsk 660036, Russia
Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
Natl Acad Sci Belarus, BI Stepanov Phys Inst, Minsk 220072, Byelarus
ИФ СО РАН
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk 660041, Russian Federation
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Reshetnev Siberian State Aerospace University, Krasnoyarsk 660014, Russian Federation
Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk 220072, Belarus

Доп.точки доступа:
Zyryanov, V. Y.; Зырянов, Виктор Яковлевич; Loiko, V. A.
}
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7.


   
    Ionic surfactants for the development of new method to control liquid crystals / M. N. Krakhalev [и др.] // IV International conference on colloid chemistry and physicochemical mechanics. (CCPCM-13) : book of abstracts. - 2013. - P. 332-333

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Доп.точки доступа:
Krakhalev, M. N.; Крахалев, Михаил Николаевич; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Gardymova, A. P.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; International conference on colloid chemistry and physicochemical mechanics(4 ; 2013 ; 30 июня-5 июля ; Москва); Российская академия наук; Московский государственный университет им. М.В. Ломоносова
}
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8.


   
    Light valves based on LC materials with ion-surfactant operation modes [Text] / V. Ya. Zyryanov, M. N. Krakhalev [et al.] // 18th International Symposium "Advanced Display Technologies". - 2010. - P148


Доп.точки доступа:
Zyryanov, V.Ya.; Krakhalev, M.N.; Prishchepa, O.O.; Gardymova, A.P.; Sutormin, V.S.; Loiko, V.A.; "Advanced Display Technologies", International Symposium(18 ; 2010 ; St.-Petersburg, Russia)
}
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9.


   
    Liquid crystal materials with ionic-surfactant operation / V. Y. Zyryanov [et al.] // Bull. Russ. Acad. Sci. Phys. - 2017. - Vol. 81, Is. 5. - P. 594-597, DOI 10.3103/S1062873817050288. - Cited References: 15 . - ISSN 1062-8738
Кл.слова (ненормированные):
Crystalline materials -- Liquid crystals -- Surface active agents -- B-y Ions -- Ionic surfactants -- Liquid crystal materials -- Liquid crystalline materials -- New approaches -- Surface-active compounds -- Surface-anchoring -- Liquids
Аннотация: A conceptually new approach for developing methods of control of liquid crystals is discussed. The approach is based on modifying surface anchoring. A brief review of the authors’ research on developing ionic-surfactant control of liquid crystalline materials is described. This approach is based on the effect of electrically induced modification of the boundary conditions by ions of surface-active compounds. © 2017, Allerton Press, Inc.

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Публикация на русском языке Жидкокристаллические материалы с ионно-сурфактантным управлением [Текст] / В. Я. Зырянов [и др.] // Изв. РАН. Сер. физич. - 2017. - Т. 81 № 5. - С. 641-644

Держатели документа:
Kirensky Institute of Physics, Federal Research Center—Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Gardymova, A. P.; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Shabanov, A. V.; Шабанов, Александр Васильевич
}
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10.


   
    Liquid crystals doped with ionic surfactants for electrically induced anchoring transitions / M. N. Krakhalev, V. S. Sutormin, O. O. Prishchepa [et al.] // Unconventional liquid crystals and their applications / ed.: Wei Lee, S. Kumar. - Berlin et al. : De Gruyter, 2021. - Chap. 7. - P. 279-330DOI 10.1515/9783110584370-007. - Cited References: P. 327-330
   Перевод заглавия: Жидкие кристаллы, допированные ионными сурфактантами, для электро-индуцированных изменений сцепления

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Держатели документа:
Библиотека Института физики им. Л. В. Киренского СО РАН

Доп.точки доступа:
Wei Lee \ed.\; Kumar, Sandeep \ed.\; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Gardymova, A. P.; Shabanov, A. V.; Шабанов, Александр Васильевич; Wei Lee; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич
}
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