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Polymer dispersed cholesteric liquid crystals with a toroidal director configuration under an electric field / A. P. Gardymova, M. N. Krakhalev, V. Ya. Zyryanov [et al.] // Polymers. - 2021. - Vol. 13, Is. 5. - Ст. 732. - P. 1-11, DOI 10.3390/polym13050732. - Cited References: 49. - This research was funded by Russian Science Foundation, Grant No. 20-72-10038 . - ISSN 2073-4360
Кл.слова (ненормированные):
cholesteric droplet -- orientational structure -- electric field -- polymer dispersted liquid crystal -- dichroic dye
Аннотация: The electro-optical properties of polymer dispersed liquid crystal (PDLC) films are highly dependent on the features of the contained liquid crystal (LC) droplets. Cholesteric LC droplets with homeotropic boundaries can form several topologically different orientational structures, including ones with single and more point defects, layer-like, and axisymmetric twisted toroidal structures. These structures are very sensitive to an applied electric field. In this work, we have demonstrated experimentally and by computer simulations that twisted toroidal droplets reveal strong structural response to the electric field. In turn, this leads to vivid changes in the optical texture in crossed polarizers. The response of droplets of different sizes were found to be equivalent in terms of dimensionless parameters. In addition, the explanation of this phenomenon showed a comparison of theoretical and experimental structural response curves aids to determine the shape of the droplet. Finally, we demonstrated that the addition of a dichroic dye allows such films to be used as optical filters with adjustable color even without polarizers.

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

Доп.точки доступа:
Gardymova, A. P.; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Gruzdenko, A. A.; Alekseev, A. A.; Rudyak, V. Yu.
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Spin state crossover in Co3BO5 / N. V. Kazak, M. S. Platunov, Y. V. Knyazev [et al.] // Phys. Rev. B. - 2021. - Vol. 103, Is. 9. - Ст. 094445, DOI 10.1103/PhysRevB.103.094445. - Cited References: 71. - We acknowledge many inspirational discussions on the topic of this paper with the late Natalia Ivanova and Leonard Bezmaternykh. The authors acknowledge A. Ney for allowing us to use the XANES spectrum of film. We are grateful to the Russian Foundation for Basic Research (Project No. 20-02-00559) and President Council on Grants (Project No. МК-2339.2020.2) for supporting this paper. This paper was carried out within the state assignment of the Russian Ministry of Science and High Education via program “Quantum”' (No. AAAA-A18-118020190095-4). We also acknowledge support by Russian Ministry of Education and Science via Contract No. 02.A03.21.0006. We acknowledge financial support from the Spanish Ministry of Economy, Industry and Competitiveness (MINECO, Grant No. MAT2017-83468-R) and from the regional Government of Aragon (E12-20R RASMIA project) . - ISSN 2469-9950
Кл.слова (ненормированные):
Carbon dioxide -- Crystal structure -- Dichroism -- Energy gap -- Hydraulic structures -- Ions -- Iron compounds -- Magnetic moments -- Magnetic susceptibility -- Single crystals -- DC magnetic susceptibility -- Effective magnetic moments -- Electronic configuration -- Generalized gradient approximations -- Magnetic sublattices -- Octahedral environment -- Paramagnetic susceptibility -- X-ray magnetic circular dichroism -- Cobalt
Аннотация: We have investigated the spin and oxidation states of Co in Co3BO5 using x-ray magnetic circular dichroism (XMCD) and dc magnetic susceptibility measurements. At low temperatures, XMCD experiments have been performed at the Co K-edge in Co3BO5 and Co2FeBO5 single crystals in the fully ferrimagnetically ordered phase. The Co (K-edge) XMCD signal is found to be related to the Co2+ magnetic sublattices in both compounds, providing strong experimental support for the low-spin (LS) Co3+ scenario. The paramagnetic susceptibility is highly anisotropic. An estimation of the effective magnetic moment in the temperature range 100–250 K correlates well with two Co2+ ions in the high-spin (HS) state and some orbital contribution, while Co3+ remains in the LS state. The crystal structure of the Co3BO5 single crystal has been solved in detail at the T range 296–703 K. The unit cell parameters and volume show anomalies at 500 and 700 K. The octahedral environment of the Co4 site strongly changes with heating. The generalized gradient approximation with Hubbard U correction calculations have revealed that, at low-temperatures, the system is insulating with a band gap of 1.4 eV, and the Co2+ ions are in the HS state, while Co3+ are in the LS state. At high temperatures (T > 700 K), the charge ordering disappears, and the system becomes metallic with all Co ions in 3d7 electronic configuration and HS state.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
M.N. Miheev Institute of Metal Physics UB RAS, Ekaterinburg, 620137, Russian Federation
Ural Federal University, Ekaterinburg, 620002, Russian Federation
Instituto de Nanociencia y Materiales de Aragon (INMA), CSIC-Universidad de Zaragoza, Departamento de Fisica de la Materia Condensada, Zaragoza, 50009, Spain
Servicio de Medidas Fisicas, Universidad de Zaragoza, Zaragoza, 50009, Spain
Institute of Chemistry and Chemical Technology, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
P.N. Lebedev Physical Institute of RAS, Moscow, 119991, Russian Federation
ESRF-The European Synchrotron, 71 Avenue des Martyrs CS40220, Grenoble Cedex 9, F-38043, France

Доп.точки доступа:
Kazak, N. V.; Казак, Наталья Валерьевна; Platunov, M. S.; Платунов, Михаил Сергеевич; Knyazev, Yu. V.; Князев, Юрий Владимирович; Molokeev, M. S.; Молокеев, Максим Сергеевич; Gorev, M. V.; Горев, Михаил Васильевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Pchelkina, Z. V.; Gapontsev, V. V.; Streltsov, S. V.; Bartolome, J.; Arauzo, A.; Yumashev, V. V.; Gavrilkin, S. Y.; Wilhelm, F.; Rogalev, A.
}
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Magnon-polaron excitations in the noncollinear antiferromagnet Mn3Ge / A. S. Sukhanov [et al.] // Phys. Rev. B. - 2019. - Vol. 99, Is. 21. - Ст. 214445, DOI 10.1103/PhysRevB.99.214445. - Cited References: 53. - We thank S. E. Nikitin for many stimulating discussions. A.S.S. acknowledges support from the International Max Planck Research School for Chemistry and Physics of Quantum Materials (IMPRS-CPQM). Work at the TU Dresden was funded by the German Research Foundation (DFG) through projects B05 and C03 of the Collaborative Research Center SFB 1143 (project i.d. 247310070), Wurzburg-Dresden Cluster of Excellence ct.qmat (EXC 2147; project i.d. 39085490), and Priority Program SPP 2137 "Skyrmionics." . - ISSN 2469-9950. - ISSN 2469-9969

РУБ Materials Science, Multidisciplinary + Physics, Applied + Physics,
Рубрики:
TRIANGULAR SPIN CONFIGURATION
WEAK FERROMAGNETISM
MN3SN
Аннотация: We present detailed inelastic neutron scattering measurements of the noncollinear antiferromagnet Mn3Ge. Time-of-flight and triple-axis spectroscopy experiments were conducted at the temperature of 6 K, well below the high magnetic ordering temperature of 370 K. The magnetic excitations have a 5-meV gap and display an anisotropic dispersive mode reaching ~ 90 meV at the boundaries of the magnetic Brillouin zone. The spectrum at the zone center shows two additional excitations that demonstrate characteristics of both magnons and phonons. Ab initio lattice-dynamics calculations show that these can be associated with the magnon-polaron modes resulting from the hybridization of the spin fluctuations and the low-energy optical phonons. The observed magnetoelastic coupling agrees with the previously found negative thermal expansion in this compound and resembles the features reported in the spectroscopic studies of other antiferromagnets with similar noncollinear spin structures.

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Держатели документа:
Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany.
Tech Univ Dresden, Inst Festkorper & Mat Phys, D-01069 Dresden, Germany.
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Univ Paris Saclay, CEA Saclay, CNRS, Lab Leon Brillouin,CEA, F-91191 Gif Sur Yvette, France.
Rutherford Appleton Lab, STFC, ISIS Facil, Didcot OX11 0QX, Oxon, England.

Доп.точки доступа:
Sukhanov, A. S.; Pavlovskii, M. S.; Павловский, Максим Сергеевич; Bourges, P.h.; Walker, H. C.; Manna, K.; Felser, C.; Inosov, D. S.; International Max Planck Research School for Chemistry and Physics of Quantum Materials (IMPRS-CPQM); German Research Foundation (DFG) through project B05 of the Collaborative Research Center [SFB 1143, 247310070]; German Research Foundation (DFG) through project C03 of the Collaborative Research Center [SFB 1143, 247310070]; German Research Foundation (DFG) through Wurzburg-Dresden Cluster of Excellence ct.qmat [EXC 2147, 39085490]; German Research Foundation (DFG) [SPP 2137]
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    Toroidal Configuration of a Cholesteric Liquid Crystal in Droplets with Homeotropic Anchoring / M. N. Krakhalev [et al.] // JETP Letters. - 2019. - Vol. 109, Is. 7. - P. 478-481, DOI 10.1134/S0021364019070075. - Cited References: 30. - This work was supported by the Russian Science Foundation (project no. 18-72-10036). The work was performed using the equipment of the Shared Usage Center of High-Capacity Computational Resources, Moscow State University, supported by the Ministry of Education and Science of the Russian Federation (project no. RFMEFI62117X0011). . - ISSN 0021-3640. - ISSN 1090-6487
Рубрики:
NEMATIC DROPLETS
   SURFACE
Аннотация: Orientational structures formed in cholesteric droplets with homeotropic surface anchoring have been studied by means of polarization optical microscopy and computer simulations. It has been found that, when the ratio of the size of droplets to the pitch of a cholesteric helix ranges from 1.4 to 2.9, an axisymmetric toroidal cholesteric structure is formed with a topological linear defect in the form of an equatorially located surface ring. The features of the toroidal structure in cholesteric droplets and their optical textures for various observation schemes are examined in detail.

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Публикация на русском языке Тороидальная конфигурация холестерика в каплях с гомеотропным сцеплением [Текст] / М. Н. Крахалев [и др.] // Письма в ЖЭТФ. - 2019. - Т. 109 Вып. 7-8. - С. 487-491

Держатели документа:
Russian Acad Sci, Siberian Branch, Fed Res Ctr KSC, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.
Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119991, Russia.

Доп.точки доступа:
Krakhalev, M. N.; Крахалев, Михаил Николаевич; Rudyak, V. Yu.; Gardymova, A. P.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Russian Science Foundation [18-72-10036]; Ministry of Education and Science of the Russian Federation [RFMEFI62117X0011]
}
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    Nematic and Cholesteric Liquid Crystal Structures in Cells with Tangential-Conical Boundary Conditions / M. N. Krakhalev [et al.] // Crystals. - 2019. - Vol. 9, Is. 5. - Ст. 249, DOI 10.3390/cryst9050249. - Cited References: 43. - This work was supported by the Russian Science Foundation (No. 18-72-10036). . - ISSN 2073-4352
   Перевод заглавия: Структуры нематика и холестерика в ячейках с тангенциально-коническими граничными условиями

РУБ Crystallography + Materials Science, Multidisciplinary
Рубрики:
TRANSITION
GRATINGS
Кл.слова (ненормированные):
liquid crystal -- cholesteric -- nematic -- conical boundary conditions -- orientational structure -- director configuration -- topological defect
Аннотация: Orientational structures formed in nematic and cholesteric layers with tangential-conical boundary conditions have been investigated. LC cells with one substrate specifying the conical surface anchoring and another substrate specifying the tangential one have been considered. The director configurations and topological defects have been identified analyzing the texture patterns obtained by polarizing microscope in comparison with the structures and optical textures calculated by free energy minimization procedure of director field and finite-difference time-domain method, respectively. The domains, periodic structures and two-dimensional defects proper to the LC cells with tangential-conical anchoring have been studied depending on the layer thickness and cholesteric pitch.

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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Krakhalev, M. N.; Крахалев, Михаил Николаевич; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Russian Science Foundation [18-72-10036]
}
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    Magnesium Boride Nanotubes: Relative Stability and Atomic and Electronic Structure / P. B. Sorokin [et al.] // J. Phys. Chem. C. - 2010. - Vol. 114, Is. 11. - P. 4852-4856, DOI 10.1021/jp9112014. - Cited Reference Count: 38. - Гранты: P.B.S. and B.I.Y. acknowledge support by the Basic Energy Sciences division of the Department of Energy, award DE-SC0001479. L.A.C. was supported by the Russian Academy of Sciences, program No. 21. P.V.A ad P.B.S. also acknowledge the collaborative RFBR-JSPS grant No. 09-02-92107-R Phi. We are grateful to the Joint Supercomputer Center of the Russian Academy of Sciences for the possibility of using a cluster computer for quantum chemical calculations. The geometry of all presented structures was visualized by commercial ChemCraft software (http://www.chemcraftprog.com). - Финансирующая организация: Basic Energy Sciences division of the Department of Energy [DE-SC0001479]; Russian Academy of Sciences [21]; RFBR-JSPS [09-02-92107-RPhi] . - MAR 25. - ISSN 1932-7447
Рубрики:
BORON
   PSEUDOPOTENTIALS
   FULLERENES
   SIMULATION
   FORM
Кл.слова (ненормированные):
Basic composition -- Bending behavior -- Comparative studies -- Diborides -- Energy analysis -- Energy minima -- Magnesium atom -- Magnesium boride -- MgB2 -- Relative stabilities -- Semiconducting behavior -- Small-diameter -- Staggered configuration -- Sub-lattices -- Bending (forming) -- Borides -- Boron -- Electronic properties -- Electronic structure -- Energy management -- Magnesium -- Nanotubes -- Density functional theory
Аннотация: A comparative study of file energies and the electronic structure of MgBx nanotubes is performed within the framework of the density functional theory. Different basic compositions (x = 2 for diboride and x = 3 for triboride) and different diameters (3 angstrom < D < 18 angstrom), as well the exterior, interior, and staggered placement of magnesium atoms, are considered. Energy analysis reveals a nontrivial bending behavior of the MgB2 sheets. such that the tubes with exterior and staggered configurations display the energy minima at certain small diameters (of the boron cage sublattice). The semiconducting behavior of narrow MgB2 nanotubes with exterior Mg position was observed.

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Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia
Rice Univ, Dept Mech Engn & Mat Sci, Houston, TX 77251 USA
Rice Univ, Dept Chem, Houston, TX 77251 USA
Russian Acad Sci, Emanuel Inst Biochem Phys, Moscow 119334, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Sorokin, P. B.; Avramov, P.V.; Yakobson, B.I.; Chernozatonskii, L.A.
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    Ориентационный переход в слое нематика с гомеотропно-коническими граничными условиями, индуцированный ионной модификацией поверхностного сцепления / В. С. Сутормин, М. Н. Крахалев, О. О. Прищепа, В. Я. Зырянов // Жидк. крист. и их практич. использ. - 2022. - Т. 22, № 3. - С. 105-110 ; Liq. Cryst. Appl., DOI 10.18083/LCAppl.2022.3.105. - Библиогр.: 4. - В.С. Сутормин, М.Н. Крахалев и О.О. Прищепа благодарят за поддержку грант РФФИ, Правительства Красноярского края и Красноярского краевого фонда науки в рамках научного проекта № 20-42-240007 . - ISSN 1991-3966. - ISSN 2499-9644
   Перевод заглавия: Orientational transition in nematic layer with homeotropic-conical boundary conditions induced by ionic modification of surface anchoring
Кл.слова (ненормированные):
нематик -- ионный сурфактант -- поверхностное сцепление -- конические граничные условия -- конфигурация директора -- оптическая текстура -- nematic -- ionic surfactant -- surface anchoring -- conical boundary conditions -- director configuration -- optical texture
Аннотация: Исследована трансформация ориентационной структуры в слое нематика с гомеотропно-коническими граничными условиями, индуцированная электроуправляемой ионной модификацией поверхностного сцепления. Обнаружено, что изменение азимутального угла директора на подложке с коническим сцеплением возможно осуществить путем модификации граничных условий на второй подложке.
The transformation of the orientational structure induced by the electrically controlled ionic modification of surface anchoring in the nematic layer with homeotropic-conical boundary conditions has been considered. It has been found that the change in the azimuthal angle of director at the substrate with conical anchoring can be realized by modification of boundary conditions at the second substrate.

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Держатели документа:
Институт физики им. Л. В. Киренского, ФИЦ КНЦ СО РАН, Красноярск, Россия
Институт инженерной физики и радиоэлектроники, Сибирский федеральный университет, Красноярск, Россия

Доп.точки доступа:
Сутормин, Виталий Сергеевич; Sutormin, V. S.; Крахалев, Михаил Николаевич; Krakhalev, M. N.; Прищепа, Оксана Олеговна; Prishchepa, O. O.; Зырянов, Виктор Яковлевич; Zyryanov, V. Ya.

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    Optical textures and orientational structures of nematic and cholesteric droplets with heterogeneous boundary conditions / O. O. Prishchepa [et al.] // Mol. Cryst. Liquid Cryst. - 2008. - Vol. 489, Is. 1. - P. 84-93, DOI 10.1080/15421400802219817. - Cited Reference Count: 17. - Гранты: This work was supported in part by the grants of DSP, No 2.1.1.1814; RFBR, No 0803-01007; Council of the President of the RF for Support of Young Scientists and Leading Scientific Schools (projects NSh-3818-2008.3, MK-3624.2007.2); RAS, No 8.1, 2.10.2; SB RAS, No 33. - Финансирующая организация: DSP [2.1.1.1814]; RFBR [0803-01007]; Young Scientists and Leading Scientific Schools [NSh-3818-2008.3, MK-3624.2007.2]; RAS [8.1, 2.10.2]; SB RAS [33] . - ISSN 1542-1406
Рубрики:
LIQUID-CRYSTAL DROPLETS
   ELECTRIC-FIELD
   BIPOLAR
Кл.слова (ненормированные):
director configuration -- interfaces -- nematic and cholesteric droplets -- surfactant -- Director configuration -- Interfaces -- Nematic and cholesteric droplets -- Surfactant -- Boundary value problems -- Drop formation -- Drops -- Fluid mechanics -- Phospholipids -- Surface active agents -- Boundary conditioning -- Director configuration -- Homeotropic -- Interfaces -- Nematic and cholesteric droplets -- Nematic droplets -- Nematics -- Optical textures -- Orientational structures -- Surface anchoring -- Surfactant -- Boundary conditions
Аннотация: Brief review of the orientational structures within the droplets of chiral as well as achiral nematics with the heterogeneous boundary conditions is reported. The modification of boundary conditions in the 5CB/polyvinylbutyral and LN-396/cholesterylacetate/polyvinylbutyral compositions with the planar anchoring at the interface is created by addition of the homeotropic surfactant (lecithin). Sequences of the novel stable and non-stable orientational structures being realized within the droplets of achiral nematic are presented. For the LN-396 nematic droplets doped by cholesterylacetate the formation of a spherulite structure has been shown when the tangential surface anchoring is modified to the homeotropic one.

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Держатели документа:
Siberian Fed Univ Krasnoyarsk, Krasnoyarsk Sci Ctr, SB RAS, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
L.V. Kirensky Institut of physics

Доп.точки доступа:
Prishchepa, O. O.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Gardymova, A. P.; Shabanov, V. F.; Шабанов, Василий Филиппович
}
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Crystal structure, absolute configuration and characteristic temperatures of SmFe3(BO3)4 in the temperature range 11-400 K / E. S. Smirnova, O. A. Alekseeva, A. P. Dudka [et al.] // Acta Crystallogr. B. - 2022. - Vol. 78, Is. 3-2, Pt. 1. - P. 546-556, DOI 10.1107/S2052520622003948. - Cited References: 43. - The authors are grateful to D. Yu. Chernyshov (SNBL, ESRF, Grenoble) for assistance in obtaining the experimental data. This work was performed using the equipment of the Shared Research Center FSRC ‘Crystallography and Photonics’ RAS supported by the Russian Ministry of Science and Higher Education. This work was supported by the Ministry of Science and Higher Education within the State assignment FSRC ‘Crystallography and Photonics’ RAS . - ISSN 2052-5206
Кл.слова (ненормированные):
samarium bismuth iron borate -- absolute configuration -- crystal structure -- multi-temperature single-crystal X-ray diffraction -- Mossbauer spectroscopy -- characteristic temperatures -- solution-melt growth
Аннотация: The crystal structure of samarium iron borate was analyzed with regard to growth conditions and temperature. The inclusion of about 7% Bi atoms in the crystals grown using the Bi2Mo3O12-based flux was discovered and there were no impurities in the crystals grown using the Li2WO4-based flux. No pronounced structural features associated with Bi inclusion were observed. The different absolute configurations of the samples grown using both fluxes were demonstrated. Below 80 K, a negative thermal expansion of the c unit-cell parameter was found. The structure of (Sm0.93Bi0.07)Fe3(BO3)4 belongs to the trigonal space group R32 in the temperature range 90–400 K. A decrease in the (Sm,Bi)—O, Sm—B, Sm—Fe, Fe—O, Fe—B and Fe—Fe distances is observed with a lowering of the temperature, B1—O does not change, B2—O increases slightly and the B2O3 triangles deviate from the ab plane. The strongest decrease in the equivalent isotropic atomic displacement parameters (Ueq) with decreasing temperature is observed for atoms Sm and O2, and the weakest is observed for B1. The O2 atoms have the highest Ueq values, the most elongated atomic displacement ellipsoids of all the atoms and the smallest number of allowed vibrational modes of all the O atoms. The largest number of allowed vibrational modes and the strongest interactions with neighbouring atoms is seen for the B atoms, and the opposite is seen for the Sm atoms. The quadrupole splitting Δ(T) of the paramagnetic Mössbauer spectra increases linearly with cooling. The Néel temperature [TN = 31.93 (5) K] was determined from the temperature dependence of the hyperfine magnetic field Bhf(T), which has a non-Brillouin character. The easy-plane long-range magnetic ordering below TN was confirmed.

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Держатели документа:
Shubnikov Institute of Crystallography of Federal Scientific Research Centre 'Crystallography and Photonics', Russian Academy of SciencesMoscow 119333, Russian Federation
Moscow State University, Faculty of GeologyMoscow 119991, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Smirnova, E. S.; Alekseeva, O. A.; Dudka, A. P.; Sorokin, T. A.; Khmelenin, D. N.; Yapaskurt, V. O.; Lyubutina, M. V.; Frolov, K. V.; Lyubutin, I. S.; Gudim, I. A.; Гудим, Ирина Анатольевна
}
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10.

    Bipolar-homogeneous structural phase transition in nematic droplets formed in the polymer matrix in a magnetic field / A. M. Parshin [et al.] // Crystallogr. Rep. - 2009. - Vol. 54, Is. 7. - P1191-1196, DOI 10.1134/S1063774509070098. - Cited Reference Count: 19. - Гранты: This study was supported by the Council on Grants from the President of the Russian Federation for the Support of Leading Scientific Schools ( grant no. NSh-3818.2008.3), the Russian Foundation for Basic Research ( project no. 08-03-01007), the Presidium of the Russian Academy of Sciences ( project no. 27.1), and the Siberian Branch of the Russian Academy of Sciences ( project nos. 110 and 144). - Финансирующая организация: President of the Russian Federation [NSh-3818.2008.3]; Russian Foundation for Basic Research [08-03-01007]; Russian Academy of Sciences [27.1, 110, 144] . - DEC. - ISSN 1063-7745
Рубрики:
DISPERSED LIQUID-CRYSTALS
   FRANK CONSTANTS
   ALIGNMENT
Кл.слова (ненормированные):
Bipolar configuration -- Bipolar structure -- Cyanobiphenyls -- Homogeneous structure -- Mutual transformations -- Nematic director -- Nematic droplets -- Order parameter -- Poly(vinyl butyral) -- Structural phase transition -- Temperature range -- Thermal fluctuations -- Crystal structure -- Drop formation -- Liquid crystals -- Magnetic fields -- Nematic liquid crystals -- Phase transitions
Аннотация: The phase transition from the bipolar structure to the homogeneous structure in droplets formed from the nematic liquid crystal 4-n-pentyl-4'-cyanobiphenyl in poly(vinyl butyral) in the presence of a magnetic field has been investigated. The phase transition is associated with the expansion of the regions with a tilted orientation of the director in the vicinity of defects (the disappearance of boojums) and with the alignment of the nematic director lines in the bulk of the droplet in the direction of the magnetic field. In the temperature range T = 24-34A degrees C, cyclic mutual transformations between the bipolar configuration of the nematic director and the homogeneous structure, which have a period of similar to 0.5-3.5 s and result from thermal fluctuations of the order parameter, are observed in droplets 3-15 A mu m in size after the forming field is switched off.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Parshin, A. M.; Паршин, Александр Михайлович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович; Nazarov, V. G.
}
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11.

    Температурно индуцированные изменения конфигурации директора в каплях нематика, диспергированного в поли- винилпирролидоне / Виталий С. Сутормин, Михаил Н. Крахалев, Оксана О. Прищепа // Журнал Сибирского федерального университета. Серия: Математика и физика. - 2009. - Т. 2, № 3. - С. 352-359 . - ISSN 1997-1397
   Перевод заглавия: Thermo-Induced Transformations of Director Configuration within Nematic Droplets Dispersed in Polyvinylpyrrolidone
Кл.слова (ненормированные):
граница раздела -- interface -- polymer dispersed liquid crystals -- Nematic -- surfactant -- Surface anchoring -- director configuration -- капсулированные полимером жидкие кристаллы -- нематик -- сурфактант -- поверхностное сцепление -- конфигурация директора
Аннотация: В работе изучены преобразования конфигурации директора в каплях нематика, вызванные тер- моиндуцированной модификацией граничных условий. Исследования проводились для нематиче- ского жидкого кристалла 5СВ (4-н-пентил-4-цианобифенил), который допировался сурфактан- том лецитином, а затем диспергировался в поливинилпирролидоне. Показано, что при нагре- вании граничные условия изменяются от планарных к гомеотропным, что приводит к транс- формации конфигурации директора в капле нематика. При охлаждении образца наблюдалось об- ратное изменение поверхностного сцепления от гомеотропного к планарному. В обоих случаях ориентационно-структурные превращения могут происходить по двум различным сценариям.
The transformations of the director configuration within the nematic droplets induced by temperature modification of boundary conditions have been studied. Nematic liquid crystal 5CB (4-n-penthyl-4- cyanobiphenyl) doped with lecithin and dispersed in polyvinylpyrrolidone has been tested. As was shown, under heating the boundary conditions are changed from planar to homeotropic. It results in transformation of the director configuration in the nematic droplets. The inverse modification of the surface anchoring from homeotropic to planar has been observed at cooling. In both cases the transformations of orientational structure may occur in two different scenarios.

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Институт инженерной физики и радиоэлектроники, Сибирский федеральный университет
Институт физики им. Л.В. Киренского СО РАН
Сибирский государственный аэрокосмический университет

Доп.точки доступа:
Сутормин, Виталий С.; Крахалев, Михаил Н.; Прищепа, Оксана О.
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12.

    Anionic-cationic surfactant mixture providing the electrically controlled homeotropic surface anchoring of liquid crystals / M. N. Krakhalev [et al.] // J. Mol. Liq. - 2019. - Vol. 282: Suzdal Conference (2018, Suzdal, RUSSIA). - P. 57-62, DOI 10.1016/j.molliq.2019.02.132. - Cited References: 30. - The reported study was supported by the Belarusian Republican Foundation for Fundamental Research (project No X16P-110) and Russian Foundation for Basic Research (RFBR) (project No 16-53-00073). Mikhail N. Krakhalev and Vitaly S. Sutormin acknowledge financial support from RFBR, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science (project No 18-42-243006). . - ISSN 0167-7322. - ISSN 1873-3166
   Перевод заглавия: Смесь анионного и катионного сурфактантов, обеспечивающая электроуправляемое гомеотропное поверхностное сцепление в жидких кристаллах

РУБ Chemistry, Physical + Physics, Atomic, Molecular & Chemical
Рубрики:
IONIC MODIFICATION
   TRANSITION
   DROPLETS
   CONFIGURATION
   LAYER
Кл.слова (ненормированные):
Polymer dispersed liquid crystal -- Nematic droplet -- Ionic surfactant -- Anchoring transition -- Director configuration -- Optical texture
Аннотация: In search of a substance able to function as an anionic surfactant applied for the electrically-induced anchoring transitions in liquid crystals, the compound 4-heptyloxybenzoate benzyl dodecyldimethylammonium (HOBBDDA) has been synthesized. Its orienting influence on nematic liquid crystal 4-pentyl-4'-cyanobiphenyl (5CB) has been tested. HOBBDDA dissolved up to 1.4%in 50 droplets dispersed in polymer film does not change the tangential surface anchoring inherent to polyvinyl alcohol matrix used. Homeotropic surface anchoring is realized if the HOBBDDA content exceeds 1.7%. The molecules of the surfactant in 5CB dissociate into anions and cations. The anions modify the surface anchoring under the action of DC electric field both in the normal and inverse mode. The mixture of HOBBDDA and cetyltrimethylammonium bromide can function as a binary ionic cationic surfactant which significantly expands the prospects for using the ionic-surfactant method to control liquid crystal materials. (C) 2019 Elsevier B.V. All rights reserved.

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Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.
Belarusian State Technol Univ, Minsk 220006, BELARUS.

Доп.точки доступа:
Krakhalev, M. N.; Крахалев, Михаил Николаевич; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Kuz'menok, N. M.; Mikhalyonok, S. G.; Bezborodov, V. S.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Belarusian Republican Foundation for Fundamental Research [X16P-110]; Russian Foundation for Basic Research (RFBR) [16-53-00073]; RFBR, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science [18-42-243006]; International conference on Hole Burning, Single Molecule, and Related Spectroscopies: Science and Applications - 2018(XIII ; August 6-12, 2018 ; Suzdal - Moscow, Russia)
}
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13.

    Паршин, Александр Михайлович.
    Конфигурации директора в структурах нематика, адсорбированного на поверхности полимера / А. М. Паршин, В. Я. Зырянов, В. Ф. Шабанов // Жидк. кристаллы и их практич. использ. - 2015. - Т. 15, Вып. 1. - С. 56-65 ; Liquid Crystals and their Application. - Библиогр.: 20. - Работа выполнена частично при финансовой поддержке программ Президиума РАН и РФФИ (грант № 15-02-06924). . - ISSN 1991-3966
   Перевод заглавия: Director configurations in the structures of the nematic adsorbed on a polymer surface
Кл.слова (ненормированные):
нематический жидкий кристалл -- полимер -- адсорбция -- дисклинация -- конфигурация директора -- nematic liquid crystal -- polymer -- adsorption -- disclination -- director configuration
Аннотация: Исследованы ориентационные структуры нематических жидких кристаллов, возникающие на поверхности полимера в результате адсорбции, и их устойчивость относительно шлирен-текстуры. Изучены особенности точечных и линейных сингулярностей в исследуемых структурах. Рассмотрены конфигурации директора в слое нематика, определяемые комбинацией двух ориентирующих факторов: воздействием линейной дисклинации, фактора, стремящегося задать однородное планарное упорядочение, а также влиянием точечного дефекта, задающего радиальную структуру директора. С использованием расчетного метода проведен сравнительный анализ энергии упругих искажений поля директора для различных видов конфигураций: радиально-планарной, радиально-гомеотропной и радиально-радиальной в зависимости от толщины слоя нематика.
The orientational structures of nematic liquid crystals that form at the polymer surface due to adsorption and their stability with respect to the schlieren texture are investigated. Features of point and linear singularities in these structures are studied. The director configurations in nematic layer as a result of the combination of two aligning factors, which are the linear disclination that tends to impose uniform planar ordering and point defect that imparts the radial structure to the director are considered. The analysis of the elastic distortions energies of the director configurations for the radial-planar, radial-homeotropic and radial-radial structures, depending on the nematic layer thickness was performed using the calculation method.

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Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Зырянов, Виктор Яковлевич; Zyryanov, V. Ya.; Шабанов, Василий Филиппович; Shabanov, V. F.; Parshin, A. M.

}
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14.

    Experimental results and theoretical model to describe angular dependence of light scattering by monolayer of nematic droplets / V. A. Loiko [et al.] // J. Quant. Spectrosc. Radiat. Transf. - 2016. - Vol. 178: Electromagnetic and light scattering by nonspherical particles XV: Celebrating 150 years of Maxwell's electromagnetics. - P. 263-268, DOI 10.1016/j.jqsrt.2015.10.024. - Cited References:25 . - ISSN 0022-4073. - ISSN 1879-1352
   Перевод заглавия: Экспериментальные результаты и теоретическая модель, описывающая угловую зависимость рассеяния света монослоем капель нематика

РУБ Optics + Spectroscopy
Рубрики:
Dispersed liquid-crystals
   Inhomogeneous boundary-conditions
   Films
   Transmittance
   Radiation
Кл.слова (ненормированные):
Polymer-dispersed liquid crystal film -- Liquid crystal droplet -- Director -- configuration -- Light scattering -- Monolayer of droplets
Аннотация: Light scattering by a monolayer of bipolar nematic droplets encapsulated in polymer film is examined both experimentally and theoretically. A method for the simulation of the angular distribution of scattered light is based on the anomalous diffraction and interference approximations taking into account the director configuration within liquid crystal droplets and their bipolar axes orientation. The director configuration in nematic droplets is calculated using the relaxation method of the free energy minimization. The characteristics of the sample, including distribution of droplet sizes and shape anisometry, are measured in details. The experimental results and theoretical data agree closely with each other. (C) 2015 Elsevier Ltd. All rights reserved.

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Доп.точки доступа:
Loiko, V. A.; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Konkolovich, A. V.; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Miskevich, A. A.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Conference on Electromagnetic and Light Scattering(15 ; June 21-26, 2015 ; Leipzig, Germany)
}
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15.

    Parshin, A. M.
    The director field distribution with the strongly pinned alignment in nematic structures at the polymer surface / A. M. Parshin, V. Y. Zyryanov, V. F. Shabanov // Liq. Cryst. - 2015. - Vol. 42, Is. 1. - P. 57-64, DOI 10.1080/02678292.2014.960904. - Cited References:18. - This work was partially supported by the Russian Foundation for BasicResearch [project No. 12-03-00816] and by the Siberian Branch of theRussian Academy of Sciences (SB RAS) [grants nos. 30, 24.29, 24.32] andby SB RAS through a Taiwan-SB RAS joint project. . - ISSN 0267. - ISSN 1366-5855
   Перевод заглавия: Распределение поля директора с сильно фиксированным упорядочением в нематических структурах на поверхности полимера

РУБ Chemistry, Multidisciplinary + Crystallography + Materials Science,
Рубрики:
LIQUID-CRYSTALS
DISCLINATION LINES
DEFECTS
Кл.слова (ненормированные):
orientational order -- disclination -- adsorption -- nematic -- polymer surface -- director configuration
Аннотация: We investigate orientational nematic liquid crystal structures that form at the polymer surface due to adsorption, their stability against the schlieren texture and features of point and linear singularities in them. We demonstrate that surface disclination lines, which also occur due to molecular adsorption, can lead to azimuthal anchoring of a bulk layer and make the singularities with the charge m=+/- 1 stable. We consider the director field distribution in a nematic layer as a result of the combination of two aligning factors, which are the linear disclination that tend to impose uniform planar ordering and point defects that impart the radial configuration to the director. With the use of the calculation, we analyse the energies of elastic distortions of the director field for the radial-planar, radial-homeotropic and radial-radial configurations, depending on the nematic layer thickness.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Krasnoyarsk Sci Ctr, Siberian Branch, Krasnoyarsk, Russia.
Siberian Fed Univ, Dept Energy, Krasnoyarsk, Russia.

Доп.точки доступа:
Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович; Паршин, Александр Михайлович; Russian Foundation for Basic Research [12-03-00816]; Siberian Branch ofthe Russian Academy of Sciences (SB RAS) [30, 24.29, 24.32]; SB RASthrough a Taiwan-SB RAS joint project
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16.

    Electro-optical response of an ionic-surfactantdoped nematic cell with homeoplanar-twisted configuration transition / V. S. Sutormin [et al.] // Opt. Mater. Express. - 2014. - Vol. 4, Is. 4. - P. 810-815, DOI 10.1364/OME.4.000810. - Cited References: 16. - This work was partially supported by the Russian Foundation for Basic Research (project No. 12-03-00816), and by the Siberian Branch of the Russian Academy of Sciences (SB RAS) through Grants Nos. 30, 24.32, and by the Ministry of Science and Technology of Taiwan under Grant No. NSC 103-2923-M-009-003-MY3 through an NSC-SB-RAS joint project. . - ISSN 2159-3930
   Перевод заглавия: Электрооптический отклик ячейки, заполненной нематиком, допированным ионным сурфактантом, при переходе от гомеопланарной к твист конфигурации.

РУБ Materials Science, Multidisciplinary + Optics
Рубрики:
LIQUID-CRYSTAL
   ORIENTATION
   SURFACES
   LAYER
Аннотация: This study is concerned with the optical response of an electro-optical material consisting of nematic liquid crystal as well as ionic surfactant as a dopant. The dopant is a key component to carry out the working of the resulting device through configuration switching. The operational principle is based on the surface anchoring transition induced by a steady electric field. The dynamic characteristics of the electro-optical cell can be considerably improved when the nematic layer is reoriented from the initially homeoplanar director configuration into the twisted state. Besides, a method to shorten the relaxation time is demonstrated by using a controlling pulse with a bipolar waveform. (C)2014 Optical Society of America

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Russian Acad Sci, Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia
Natl Chiao Tung Univ, Coll Photon, Tainan 71150, Taiwan

Доп.точки доступа:
Sutormin, V. S.; Сутормин, Виталий Сергеевич; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Lee, W.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Russian Foundation for Basic Research [12-03-00816]; Siberian Branch of the Russian Academy of Sciences (SB RAS) [30, 24.32]; Ministry of Science and Technology of Taiwan through an NSC-SB-RAS joint project [NSC 103-2923-M-009-003-MY3]
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17.

    Киренский, Леонид Васильевич.
    Конфигурация доменов в ферромагнитных кристаллах [Текст] / Л. В. Киренский // Кристаллография. - 1959. - Т. 4, Вып. 5. - С. 702-709. - Библиогр.: 6 назв. - Phys. Abstr. - 1960. - Vol. 63, 13793
   Перевод заглавия: Configuration of the domains in ferromagnetic crystals

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Держатели документа:
Институт физики Сибирского отделения АН СССР

Доп.точки доступа:
Савченко, Михаил Кириллович; Savchenko, M. K.; Kirensky, L. V.
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18.

Model of electron pressure anisotropy in the electron diffusion region of collisionless magnetic reconnection / A. . Divin [et al.] // Phys. Plasmas. - 2010. - Vol. 17, Is. 12. - Ст. 122102, DOI 10.1063/1.3521576. - Cited References: 42. - The present work is supported partially by the Onderzoekfonds KU Leuven (Research Fund KU Leuven) and by the European Commission's Seventh Framework Programme (FP7/2007-2013) under grant Agreement No. 218816 (SOTERIA project, www.soteria- space.eu). Additional support is provided by RFBR (Grant No. 09-05-91000-ANF-a). V.S.S. thanks ISSI for hospitality and financial support. The simulations were conducted on the resources of the Vlaams Supercomputer Centrum (VSC) at the Katholieke Universiteit Leuven. . - ISSN 1070-664X

РУБ Physics, Fluids & Plasmas
Рубрики:
CURRENT SHEETS
   X-LINE
   PLASMA
   DISSIPATION
   FIELD
   SIMULATIONS
   ACCELERATION
   TRANSPORT
Кл.слова (ненормированные):
Analytical results -- Antiparallel configuration -- Collisionless -- Electron diffusion -- Electron population -- Electron pressures -- Magnetic reconnections -- Neutral line -- New model -- Particle-in-cell simulations -- Two particles -- Anisotropy -- Astrophysics -- Collisionless plasmas -- Computer simulation -- Diffusion -- Geophysics -- Magnetic fields -- Magnetic properties -- Plasma simulation -- Electrons
Аннотация: A new model of the electron pressure anisotropy in the electron diffusion region in collisionless magnetic reconnection is presented for the case of antiparallel configuration of magnetic fields. The plasma anisotropy is investigated as source of collisionless dissipation. By separating electrons in the vicinity of the neutral line into two broad classes of inflowing and accelerating populations, it is possible to derive a simple closure for the off-diagonal electron pressure component. The appearance of these two electron populations near the neutral line is responsible for the anisotropy and collisionless dissipation in the magnetic reconnection. Particle-in-cell simulations verify the proposed model, confirming first the presence of two particle populations and second the analytical results for the off-diagonal electron pressure component. Furthermore, test-particle calculations are performed to compare our approach with the model of electron pressure anisotropy in the inner electron diffusion region by Fujimoto and Sydora [Phys. Plasmas 16, 112309 (2009)]. (C) 2010 American Institute of Physics. [doi:10.1063/1.3521576]

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Держатели документа:
[Divin, A.
Markidis, S.
Lapenta, G.] Katholieke Univ Leuven, Ctr Plasma Astrofys, B-3001 Heverlee, Belgium
[Semenov, V. S.] St Petersburg State Univ, Dept Phys, St Petersburg 198504, Russia
[Erkaev, N. V.] Russian Acad Sci, Inst Computat Modelling, Krasnoyarsk 660036, Russia
[Erkaev, N. V.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Biernat, H. K.] Austrian Acad Sci, Space Res Inst, A-8042 Graz, Austria
[Biernat, H. K.] Graz Univ, Inst Phys, A-8010 Graz, Austria
ИВМ СО РАН
Centrum voor Plasma-astrofysica, Katholieke Universiteit Leuven, B-3001 Heverlee, Belgium
Department of Physics, St. Petersburg State University, St. Petersburg 198504, Russian Federation
Institute for Computational Modelling, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Krasnoyarsk 660041, Russian Federation
Space Research Institute, Austrian Academy of Sciences, Graz A-8042, Austria
Institute of Physics, University of Graz, Graz A-8010, Austria

Доп.точки доступа:
Divin, A.; Markidis, S.; Lapenta, G.; Semenov, V. S.; Erkaev, N. V.; Еркаев, Николай Васильевич; Biernat, H. K.
}
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19.

    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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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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20.

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

Материалы конференции,
Материалы конференции

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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