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1.


   
    Nonlinear optical processes in randomized domain structures of strontium tetraborate / Aleksandrovsky A.S., Shakhura I.E., Vyunyshev A.M., Zaitsev A.I., Zamkov A.V. // International Conference "Laser Optics 2008" June 23-28, 2008, St.Petersburg, Russia, p.55


Доп.точки доступа:
Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Shakhura, I. E.; Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Zaitsev, A. I.; Зайцев, Александр, Иванович; Zamkov, A. V.; Замков, Анатолий Васильевич
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2.


   
    Magnetic anisotropy and ferromagnetic resonance in inhomogeneous demagnetizing fields near edges of thin magnetic films / P. N. Solovev, B. A. Belyaev, N. M. Boev [et al.] // J. Phys. Condens. Matter. - 2024. - Vol. 36, Is. 19. - Ст. 195803, DOI 10.1088/1361-648X/ad258c. - Cited References: 38 . - ISSN 0953-8984. - ISSN 1361-648X
Кл.слова (ненормированные):
edge domain -- demagnetizing fields -- demagnetizing fields -- film edges -- magnetic anisotropy -- magnetization dynamics
Аннотация: Using local ferromagnetic resonance spectroscopy, we have studied the magnetic properties near edges of thin tangentially magnetized permalloy films, in which a well-defined uniaxial magnetic anisotropy was induced perpendicular to one of the edges. In the experiment, two samples with thicknesses of 90 and 300 nm and with slightly different compositions were examined. To explain the magnetization dynamics near edges, we propose a simple yet effective model of a film in the form of a rectangular prism, which yields the modified Kittel formula for the resonance frequency. In this formula, the locally averaged distance-dependent demagnetizing field that emerges near the edges is included as an additional uniaxial anisotropy term. The measurements reveal that at a certain distance from the edge, the resulting (apparent) anisotropy, determined from the angular dependencies of the resonance field, almost vanishes. Moreover, its easy axis reorients to become parallel to the edge. The model predictions agree well with these results, proving that the main resonance mode behavior near the film edges can be accurately described by introducing additional effective uniaxial anisotropy, provided the measuring area is relatively large. However, for the thick (300 nm) sample, additional precession modes are also observed. These modes distort the angular dependence of the main mode, thus demonstrating the limitations of the model.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 50/38 Akademgorodok, 660036 Krasnoyarsk, Russia
Siberian Federal University, 79 Svobodny pr., 660041 Krasnoyarsk, Russia

Доп.точки доступа:
Solovev, P. N.; Соловьев, Платон Николаевич; Belyaev, B. A.; Беляев, Борис Афанасьевич; Boev, N. M.; Боев, Никита Михайлович; Skomorokhov, G. V.; Скоморохов, Георгий Витальевич; Izotov, A. V.; Изотов, Андрей Викторович
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3.


   
    Magnetic anisotropy and domain structure of epitaxia Mn5Ge3 thin film on Si(111) substrate / M. V. Rautskii, I. Sobolev, I. A. Yakovlev [et al.] // V International Baltic Conference on Magnetism. IBCM : Book of abstracts. - 2023. - P. 151. - Cited References: 5. - РФН № 21-12-00226 ; Красноярский регион. фонд науки

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS
Siberian Federal University

Доп.точки доступа:
Rautskii, M. V.; Рауцкий, Михаил Владимирович; Sobolev, I.; Yakovlev, I. A.; Яковлев, Иван Александрович; Lukyanenko, A. V.; Лукьяненко, Анна Витальевна; Tarasov, A. S.; Тарасов, Антон Сергеевич; Volkov, N. V.; Волков, Никита Валентинович; International Baltic Conference on Magnetism(5 ; 2023 ; Aug. 20-24 ; Svetlogorsk, Russia); Балтийский федеральный университет им. И. Канта
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4.


   
    Features of the magnetic state of an ordered array of ferromagnetic ribbons / V. A. Orlov, R. Yu. Rudenko, A. V. Luk’yanenko [et al.] // Phys. Met. Metallogr. - 2023. - Vol. 124, Is. 2. - P. 109-117, DOI 10.1134/S0031918X22601780. - Cited References: 35. - In the part of sample preparations, this study was supported by the Russian Foundation for Basic Research within research project no. 20-02-00696. The magnetic measurements and theoretical calculations were performed within the framework of State assignment from the Ministry of Science and Higher Education of the Russian Federation (topic no. FSRZ-2020-0011) . - ISSN 0031-918X. - ISSN 1555-6190
Кл.слова (ненормированные):
magnetic domain wall -- magnetic vortex -- ferromagnetic ribbon
Аннотация: The features of the magnetic state of an array of parallel oriented permalloy ribbons are discussed. The arrays are made by explosive lithography. The ribbons have a thickness of 180 nm, a width of 2.8 µm, and a length of about 4 mm. The distance between ribbons in different samples varies in the range from 300 nm to 4 μm. It is found that the ribbons in the regions far from the end faces are in a single-domain state with small-angle ripples, the magnetization distribution of which correlates with inhomogeneities of the ribbon side surfaces. Moreover, there is a distinct relationship in the spatial distribution of the ripples between adjacent ribbons with a relatively small distance between them. This makes it possible to evaluate the role of the magnetostatic coupling of magnetic subsystems of array elements and to estimate the characteristic value of the random stray field that pins the magnetization.

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Публикация на русском языке Особенности магнитного состояния упорядоченного массива ферромагнитных лент [Текст] / В. А. Орлов, Р. Ю. Руденко, А. В. Лукьяненко [и др.] // Физ. металлов и металловед. - 2023. - Т. 124 № 2. - С. 117-125

Держатели документа:
Siberian Federal University, 660041, Krasnoyarsk, Russia
Kirenskii Institute of Physics, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia
Astaf’ev Krasnoyrsk State Pedagogical University, 660049, Krasnoyarsk, Russia

Доп.точки доступа:
Orlov, V. A.; Орлов, Виталий Александрович; Rudenko, R. Yu.; Luk'yanenko, A. V.; Лукьяненко, Анна Витальевна; Yakovchuk, V. Yu.; Яковчук, Виктор Юрьевич; Komarov, V. A.; Комаров, Василий Андреевич; Prokopenko, V. S.; Orlova, I. N.
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5.


    Аверьянов, Евгений Михайлович.
    Молекулярно-оптическая и структурная анизотропия одноосных монодоменных/полидоменных пленок сопряженного полимера F8BT с аксиальной/плоскостной ориентацией макромолекул / Е. М. Аверьянов // Жидк. крист. и их практич. использ. - 2023. - Т. 23, № 1. - С. 68-77 ; Liq. Cryst. Appl., DOI 10.18083/LCAppl.2023.1.68. - Библиогр.: 14 . - ISSN 1991-3966. - ISSN 2499-9644
   Перевод заглавия: Molecular-optical and structural anisotropy of uniaxial single-domain/ polydomain films of conjugated polymer F8BT with axial/planar orientation of macromolecules
Кл.слова (ненормированные):
тонкие полимерные пленки -- двумерные поликристаллы -- сопряженные полимеры -- F8BT -- ориентационный порядок -- оптическая и спектральная анизотропия -- thin polymer films -- two-dimensional polycrystals -- conjugated polymers -- F8BT -- orientation order -- optical and spectral anisotropy
Аннотация: На практике используются одноосные полимерные пленки двух типов: монодоменные пленки на ориентирующих подложках с аксиальной ориентацией макромолекул относительно оптической оси пленки n, параллельной плоскости подложки (тип ОА); полидоменные пленки на изотропных подложках с плоскостной ориентацией макромолекул и оптической осью n, нормальной к подложке (тип ОP). Молекулярно-оптическая анизотропия пленки определяется средней по ансамблю анизотропией δγ = γ|| – γ⊥ компонент поляризуемости γj мономерных звеньев полимерных цепей для поляризаций световой волны вдоль (j = ||) и нормально (j = ⊥) оси n. Структурную анизотропию пленки описывают параметры ориентационного порядка U дипольных моментов m электронных (колебательных) переходов в мономерных звеньях макромолекул относительно оси n. Для пленок одного полимера значения параметров Rδ(λ) = δγА/δγP и RU = UA/UP характеризует степень близости полидоменной пленки к идеальному двумерному поликристаллу. В данной работе исследованы зависимость Rδ(λ) от длины световой волны λ в видимой области прозрачности и параметры порядка UA(P) для дипольного момента длинноволнового электронного перехода в монодоменных и полидоменных пленках сопряженного полимера F8BT. Значения Rδ(λ) получены из показателей преломления пленок nj(λ) с учетом компонент fj(λ) = 1 + Lj[nj2(λ) – 1] тензора локального поля. Компоненты Lj тензора Лорентца определены с использованием зависимостей nj(λ). Значения Rδ(λ) согласуются с Rδ = –2 для двумерного поликристалла, состоящего из одноосных кристаллитов. Параметры UA(P) определены с использованием фоновых величин nbj и максимальных значений kjmax компонент комплексного показателя преломления Nj(λ) = nj(λ) + ikj(λ) пленок в области длинноволновой полосы электронного поглощения при учете фоновых значений fbj = 1 + Lj(nbj2 – 1). Экспериментальное значение RU отличается от RU = –2 для двумерного поликристалла, что показывает чувствительность параметра UP к ориентационному беспорядку мономерных звеньев макромолекул в междоменных областях полидоменных пленок.
Two types of uniaxial polymer films are used in practice. The first type is singledomain film on orienting substrate with axial orientation of macromolecules with respect to the optical axis of the film n which is parallel to the substrate plane (type ОА). The second type is polydomain film on isotropic substrate with in-plane orientation of macromolecules and the optical axis of the film n which is perpendicular to the substrate plane (type ОP). The molecular-optical anisotropy of a film is defined by the ensemble-averaged anisotropy δγ = γ|| – γ⊥ of the components γj of the polarizability of the monomer units of a polymer for the light-wave polarizations along (j = ||) and across (j = ⊥) the optical axis n. The structural anisotropy of the film is described by the orientation order parameters U of the dipole moments m of the electronic (oscillatory) transitions in monomer units of macromolecule with respect to axis n. For films of the same polymer, the values of Rδ(λ) = δγА/δγP and RU = UA/UP characterize the closeness degree of the polydomain film to the ideal twodimensional polycrystal. In this work, the dependence Rδ(λ) on the light-wavelength λ in the visible range and the order parameters UA(P) for the dipole moment of the long-wavelength electronic transition in single-domain and polydomain films of the conjugated polymer F8BT were studied. The values Rδ(λ) were determined from the refractive indices nj(λ) of the films with the local-field tensor components fj(λ) = 1 + Lj[nj2(λ) – 1]. The Lorentz-tensor components Lj were obtained using the dependences nj(λ). The values Rδ(λ) are in agreement with Rδ = –2 for two-dimensional polycrystal consisted of the uniaxial crystallites. The parameters UA(P) were determined with the use of the background values nbj and maximal values kjmax of the components of the complex refractive indices Nj(λ) = nj(λ) + ikj(λ) of the films in the region of their long-wavelength electronic absorption band, taking into account the background values fbj = 1 + Lj(nbj2 – 1). The experimental value RU differs from RU = –2 for two-dimensional polycrystal. This difference reveals the sensitivity of the parameter UP to the orientation disorder of the monomer units of macromolecules in interdomain regions of polydomain films.

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Держатели документа:
Институт физики им. Л. В. Киренского, ФИЦ КНЦ СО РАН, Красноярск, Россия

Доп.точки доступа:
Aver'yanov, E. M.

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6.


    Orlov, V. A.
    Spectrum of collective vibrations of vortex domain walls in a ferromagnetic nanostripe array / V. A. Orlov, G. S. Patrin, I. N. Orlova // Eur. Phys. J. B. - 2022. - Vol. 95, Is. 3. - Ст. 52, DOI 10.1140/epjb/s10051-022-00315-y. - Cited References: 32. - The study was carried out within the state assignment of the Ministry of Science and Higher Education of the Russian Federation, theme no. FSRZ-2020-0011 . - ISSN 1434-6028
   Перевод заглавия: Спектр коллективных колебаний вихревых доменных стенок в массиве ферромагнитных нанолент
Кл.слова (ненормированные):
Domain walls -- Ferromagnetic materials -- Magnetostatics -- Vortex flow
Аннотация: A problem of the spectrum of the collective periodic motion of vortex domain walls in a system of parallel ferromagnetic nanostripe is theoretically solved. The magnetic subsystems of stripes are coupled by the magnetostatic interaction. The effect of the distribution of vortex core polarities and chiralities on the character of periodic motion and the spectrum of collective modes of the nanostripe magnetization is discussed. Analytical expressions for the dispersion law and damping parameter of the collective periodic motion of vortex domain walls are obtained.

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Держатели документа:
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk, 660036, Russian Federation
Krasnoyarsk State Pedagogical University after V.P. Astaf’ev, Krasnoyarsk, 660049, Russian Federation

Доп.точки доступа:
Patrin, G. S.; Патрин, Геннадий Семёнович; Orlova, I. N.; Орлов, Виталий Александрович
}
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7.


   
    Magnetic properties and peculiarities of the domain structure of multilayer permalloy-based GMI elements / A. A. Pasynkova, V. N. Lepalovskii, A. V. Svalov [et al.] // Phys. Met. Metallogr. - 2022. - Vol. 123, Is. 7. - P. 715-720, DOI 10.1134/S0031918X22070146. - Cited References: 17. - The studies were performed in terms of a state assignment of the Ministry of Science and Higher Education of the Russian Federation, no. FEUZ-2020-0051 . - ISSN 0031-918X
Кл.слова (ненормированные):
magnetic properties -- magnetic domain structure -- magnetic impedance -- permalloy-based film elements
Аннотация: Magnetic properties and peculiarities of the domain structure of multilayer [Ti/FeNi]х/Cu/[FeNi/Ti]x elements, the geometry of which ensures the high magnetoimpedance effect, are studied by varying the number of layers in the range x = 0–5. Peculiarities of the magnetization processes of the multilayer structures, which are magnetized at both substrate and free surfaces, are analyzed. It has been found that elements in which the magnetization reversal from the free side occurs by rotation of the magnetization vector have a higher magnetoimpedance effect compared to elements in which the magnetization reversal occurs with the formation of 180° domain walls both in the layer from the side of the substrate and the free layer as well.

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Публикация на русском языке Магнитные свойства и особенности доменной структуры многослойных ГМИ-элементов на основе пермаллоя [Текст] / А. А. Пасынкова, В. Н. Лепаловский, А. В. Свалов [и др.] // Физ. металлов и металловед. - 2022. - Т. 123 № 7. - С. 682-686

Держатели документа:
Ural Federal University, Ekaterinburg, 620002, Russian Federation
Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Ekaterinburg, 620108, Russian Federation
Institute of Physics, Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Universidad del Pais Vasco UPV/EHU, Leioa, 48940, Spain

Доп.точки доступа:
Pasynkova, A. A.; Lepalovskii, V. N.; Svalov, A. V.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Kurlyandskaya, G. V.
}
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8.


   
    Temperature-dependent Raman spectroscopy, domain morphology and photoluminescence studies in lead-free BCZT ceramic / I. Coondoo, N. Panwar, S. Krylova [et al.] // Ceram. Int. - 2021. - Vol. 47, Is. 2. - P. 2828-2838, DOI 10.1016/j.ceramint.2020.09.137. - Cited References: 65. - I.C. would like to thank financial assistance by national funds (OE), through FCT – Fundação para a Ciência e a Tecnologia, I.P., in the scope of the framework contract foreseen in the numbers 4, 5 and 6 of the article 23, of the Decree-Law 57/2016, of August 29, changed by Law 57/2017, of July 19. This work was developed within the scope of the project CICECO-Aveiro Institute of Materials, UIDB/50011/2020 & UIDP/50011/2020, financed by national funds through the Portuguese Foundation for Science and Technology / MCTES . The authors would also like to acknowledge the Ural Center for Shared Use “Modern nanotechnology”, Ural Federal University, Russia and the Krasnoyarsk Regional Center of Research Equipment of Federal Research Center “Krasnoyarsk Science Center SB RAS”. The authors would like to thank Dr. E. Venkata Ramana, Department of Physics, University of Aveiro for the dielectric measurements. The work was supported by Government of the Russian Federation (Act 211, 440 Agreement 02.A03.21.0006) . - ISSN 0272-8842
Кл.слова (ненормированные):
Lead-free ceramics -- Raman spectroscopy -- Domain morphology -- Photoluminescence
Аннотация: Present work focuses on detailed temperature-dependent X-ray diffraction, Raman scattering, domain configuration, and photoluminescence (PL) studies in the (Ba0·85Ca0.15) (Zr0·10Ti0.90)O3 (BCZT) ceramics. The comprehensive Raman spectroscopy analysis in the present work not only validates the presence of the intermediate orthorhombic phase in BCZT, but also provides evidence of another transition: rhombohedral R3c phase to R3m at low temperature. Temperature behaviour of the lowest frequency transverse optical mode (soft E (TO) phonon) and hard modes was studied. Temperature dependence of peak positions, intensities, and linewidths of Raman phonon modes signalled the presence of phase transitions near −50 ± 5 °C, 0±5 °C, 35±5 °C and 110 ± 10 °C. Evolution of domain morphology occurring at phase transitions above room temperature was studied by piezoresponse force microscopy technique. Analysis of PL spectra revealed disorder/heterogeneity in the sample and indicated the existence of self-trapped excitons. PL spectra are composed of four distinct colour components (~2.55eV:blue, ~2.32eV:green, ~2.08eV:orange and ~1.78eV:red).

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Держатели документа:
Department of Physics & CICECO – Aveiro Institute of Materials, University of Aveiro, Aveiro, 3810-193, Portugal
Department of Physics, Central University of Rajasthan, BandarsindriRajasthan 305817, India
Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk660036, Russian Federation
School of Natural Sciences and Mathematics, Ural Federal University, Ekaterinburg620026, Russian Federation
I3N-Aveiro, Department of Physics, University of Aveiro, Aveiro, 3810-193, Portugal

Доп.точки доступа:
Coondoo, I.; Panwar, N.; Krylova, S. N.; Крылова, Светлана Николаевна; Krylov, A. S.; Крылов, Александр Сергеевич; Alikin, D.; Jakka, S. K.; Turygin, A.; Shur, V. Y.; Kholkin, A. L.
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9.


   
    Domain structure and magnetization reversal in multilayer structures consisting of thin permalloy films separated with nonmagnetic interlayers / B. A. Belyaev, N. M. Boev, A. V. Izotov, P. N. Solovev // Russ. Phys. J. - 2021. - Vol. 64, Is. 6. - P. 1160-1167, DOI 10.1007/s11182-021-02436-w. - Cited References: 30. - This work was financially supported by the Ministry of Science and Higher Education under agreement No. 075-11-2019-054 November 22, 2019 . - ISSN 1064-8887. - ISSN 1573-9228
РУБ Physics, Multidisciplinary
Рубрики:
MICROMAGNETIC CALCULATION
   MAGNETOMETER

   SIMULATION

   NOISE

Кл.слова (ненормированные):
micromagnetic modeling -- multilayer magnetic film -- domain structure -- hysteresis loop -- microstrip resonator -- magnetic field sensor
Аннотация: Using numerical micromagnetic modeling, we have investigated the development of domain structure and magnetization reversal in multilayer thin-film structures. The permalloy (Ni80Fe20) magnetic layers had the inplane uniaxial and perpendicular magnetic anisotropy. We found that as the thickness of nonmagnetic interlayers decreases, the in-plane configuration of magnetic moments in the permalloy layers transforms from a single domain state to stripe domains, which is caused by the increase of magnetostatic interaction between layers. In structures with "thick" interlayers, even weak magnetostatic interaction enforces the neighboring single domain permalloy layers to have opposite orientations of magnetic moments. The saturation field of such samples increases linearly with the number of layers. By analyzing the dynamic characteristics of multilayers, we determined the optimum number of layers ensuring the maximum conversion efficiency of wideband microwave microstrip sensors of weak magnetic fields.

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Публикация на русском языке Доменная структура и процессы перемагничивания многослойных систем из тонких пленок пермаллоя с немагнитными прослойками [Текст] / Б. А. Беляев, Н. М. Боев, А. В. Изотов, П. Н. Соловьев // Изв. вузов. Физика. - 2021. - Т. 64 № 6. - С. 170-176

Держатели документа:
Russian Acad Sci, Kirensky Inst Phys Fed Res Ctr KSC, Siberian Branch, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.

Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Boev, N. M.; Боев, Никита Михайлович; Izotov, A. V.; Изотов, Андрей Викторович; Solovev, P. N.; Соловьев, Платон Николаевич; Ministry of Science and Higher EducationMinistry of Science and Higher Education, PolandEuropean Commission
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10.


    Паршин, Александр Михайлович.
    Отклик гибридно-упорядоченного нематика с поверхностной линией дисклинации на импульс магнитного поля / А. М. Паршин // Жидк. кристаллы и их практич. использ. - 2021. - Т. 21, № 3. - С. 60-67 ; Liq. Cryst. Appl., DOI 10.18083/LCAppl.2021.3.60. - Библиогр.: 23 . - ISSN 1991-3966. - ISSN 2499-9644
   Перевод заглавия: Response of a hybrid-aligned nematic with a surface disclination line to a magnetic field pulse
РУБ Crystallography
Рубрики:
LIQUID-CRYSTAL
   DOMAIN-STRUCTURE

   INTERFERENCE

   DYNAMICS

   BEHAVIOR

   FILM

Кл.слова (ненормированные):
нематический жидкий кристалл -- поликарбонат -- гибридно-упорядоченный слой -- интерференция света -- рассеяние света -- импульсное магнитное поле -- nematic liquid crystal -- polycarbonate -- domain structure -- light interference -- light scattering -- magnetic field
Аннотация: Исследовано оптическое пропускание гибридно-упорядоченного нематического слоя с поверхностной линией дисклинации, деформированного импульсным магнитным полем. Получены выражения для времен реакции на полевое воздействие и релаксации жидкого кристалла к недеформированному состоянию. Время реакции оказалось существенно больше расчетного значения и сопоставимым с длительностью импульса магнитного поля. Выведены зависимости интенсивности света от разности фаз между обыкновенным и необыкновенным лучами с учетом рассеяния. Для процесса релаксации получено хорошее совпадение экспериментальной и расчетной временных зависимостей интенсивности лазерного излучения, прошедшего через весь слой жидкого кристалла, за исключением тонкого переходного приповерхностного слоя. Аномалия хода кривой релаксации в переходном слое рассмотрена в рамках известных модельных представлений.
The optical transmission of a hybrid-ordered nematic layer with a surface disclination line, strained by a pulsed magnetic field, is studied. The expressions for the reaction times to the field action and relaxation of a liquid crystal to an untrained state are obtained. The experimental reaction time turned out to be significantly longer than its calculated value and comparable to the magnetic field pulse duration. The light intensity dependences on the phase difference between the ordinary and extraordinary rays, taking into account scattering are derived. For the relaxation process, good agreement is obtained between the experimental and calculated time dependences of the laser radiation intensity transmitted through the entire liquid crystal layer, with the exception of a thin transitional near-surface layer. The anomaly in the course of the relaxation curve run in the transition layer is considered within the framework of the known model concepts.

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Институт физики им. Л. В. Киренского, ФИЦ «Красноярский научный центр Сибирского отделения РАН», Академгородок 50, 660036 Красноярск, Россия
Сибирский Федеральный университет, пр. Свободный, д. 79, 660041 Красноярск, Россия

Доп.точки доступа:
Parshin A.M.

}
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11.


    Muzalevskiy, K. V.
    Shielded open-circuited probe for in-situ measurements of soil permittivity in Very high frequency (VHF) and Ultra high frequency (UHF) bands / K. Muzalevskiy, A. Karavaysky // Trans. Inst. Meas. Control. - 2021. - Vol. 43, Is. 16. - P. 3566-3572, DOI 10.1177/01423312211037791. - Cited References: 30. - The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by the SB RAS project No. 0287-2021-0034 . - ISSN 0142-3312. - ISSN 1477-0369
РУБ Automation & Control Systems + Instruments & Instrumentation
Рубрики:
DIELECTRIC CHARACTERIZATION
   MOISTURE

Кл.слова (ненормированные):
Soil measurements -- dielectric spectroscopy -- frequency domain reflectometry -- complex permittivity -- shielded open-circuited probe
Аннотация: In this paper, the shielded open-circuited probe operating in the wide frequency range from 75MHz to 2GHz is proposed. The probe is made of an SubMiniature version A (SMA) flange connector. The central rod of the SMA connector emerges from a coaxial transition in the flange and shielded by four rods. The robe design allows us to calculate of the probe reflection coefficient S11 used simple analytical transmission line model (TEM wave mode), the parameters of which were calibrated on a set of substances with a known frequency spectrum of permittivity. The refractive index (RI) and normalized attenuation coefficient (NAC) retrieval technique is based on solving the inverse problem of minimizing the residual norm between measured and calculated frequency spectra of reflection coefficient S11. After calibration, the root-mean-square error (determination coefficient) between the measured and calculated module and phase of the reflection coefficient S11 for the sets of calibration media air, distilled water, butanol, pure ice, water solution with NaCl of salinity of 8.9% do not exceed 0.26dB (0.995) and 0.03 rad (0.999), respectively, in the frequency range from 75MHz to 2GHz. The root-mean-square error (determination coefficient) between the measured RI and NAC spectra for four soil cover samples (variation of the clay fraction from 10.5 g/g to 47.6 g/g) using the proposed probe and a precision coaxial cell not exceeds 0.109 (0.993) and 0.057 (0.986), respectively, in the frequency range from 75 MHz to 2 GHz. As a result, it is experimentally shown that RI и NAC can be measured by the proposed non-precision probe with an error comparable to the precision coaxial cell.

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Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Fed Res Ctr KSC, Siberian Branch, Akademgorodok 50-38, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Karavaysky, A. Yu.; Каравайский, Андрей Юрьевич; Музалевский, Константин Викторович; SB RAS project [0287-2021-0034]
}
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12.


   
    Computational approach to design of aptamers to the receptor binding domain of sars-cov-2 / P. V. Artyushenko, V. A. Mironov, D. I. Morozov [et al.] // Sib. Med. Rev. - 2021. - Vol. 2021, Is. 2. - P. 66-67 ; Сиб. мед. обозрение, DOI 10.20333/2500136-2021-2-66-67. - Cited References: 5 . - ISSN 1819-9496
Кл.слова (ненормированные):
selection -- aptamer -- receptor-binding domain -- SARS-CoV-2
Аннотация: The aim of the research. In this work, in silico selection of DNA-aptamers to the receptor-binding domain (RBD) of the SARS-CoV-2 spike protein was performed using molecular modeling methods. Material and methods. A new computational approach to aptamer in silico selection is based on a cycle of simulations, including the stages of molecular modeling, molecular docking, molecular dynamic simulations, and quantum chemical calculations. To verify the obtained calculated results flow cytometry, fluorescence polarization, and small-angle X-ray scattering methods were applied. Results. An initial library consisted of 256 16-mer oligonucleotides was modeled. Based on molecular docking results, the only one aptamer (Apt16) was selected from the library as a starting aptamer to the RBD protein. For Apt16/RBD complex, molecular dynamic and quantum chemical calculations revealed the pairs of nucleotides and amino acids whose contribution to the binding between aptamer and RBD is the largest. Taking into account these data, Apt16 was subjected to the structure modifications in order to increase the binding with the RBD. Thus, a new aptamer Apt25 was designed. The procedure of 1) aptamer structure modeling/modification, 2) molecular docking, 3) molecular dynamic simulations, 4) quantum chemical calculations was performed sev-eral times. As a result, four aptamers (Apt16, Apt25, Apt27, Apt31) to the RBD were designed in silico without any preliminary experimental data. Binding of the each modeled aptamer to the RBD was studied in terms of interactions between residues in protein and nucleotides in the aptamers. Based on the simulation results, the strongest binding with the RBD was predicted for two Apt27 and Apt31aptamers. The calculated results are in good agreement with experimental data obtained by flow cytometry, fluorescence polarization, and small-angle X-ray scattering methods. Conclusion. The proposed computational approach to selection and refinement of aptamers is universal and can be used for wide range of molecular ligands and targets.

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Держатели документа:
Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Lomonosov Moscow State University, Moscow, 119991, Russian Federation
University of Jyvaskyla, Jyvaskyla, 40014, Finland
University of Naples Federico II, Naples, 80138, Italy
Kirensky Institute of Physics KSC SB RAS, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Artyushenko, P. V.; Mironov, V. A.; Morozov, D. I.; Shchugoreva, I. A.; Borbone, N.; Tomilin, F. N.; Томилин, Феликс Николаевич; Kichkailo, A. S.

}
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13.


   
    Charge transfer plasmons in the arrays of nanoparticles connected by conductive linkers / A. S. Fedorov, M. A. Visotin, V. S. Gerasimov [et al.] // J. Chem. Phys. - 2021. - Vol. 154, Is. 8. - Ст. 012009, DOI 10.1063/5.0040128. - Cited References: 41. - This study was supported by the Russian Science Foundation, Project No. 18-13-00363 . - ISSN 0021-9606
Кл.слова (ненормированные):
Analytical expressions -- Carrier scattering -- Charge displacement -- External electromagnetic field -- Finite difference time domain simulations -- Metallic nanoparticles -- Numerical solution -- Plasmon oscillations
Аннотация: Charge transfer plasmons (CTPs) that occur in different topology and dimensionality arrays of metallic nanoparticles (NPs) linked by narrow molecular bridges are studied. The occurrence of CTPs in such arrays is related to the ballistic motion of electrons in thin linkers with the conductivity that is purely imaginary, in contrast to the case of conventional CTPs, where metallic NPs are linked by thick bridges with the real optical conductivity caused by carrier scattering. An original hybrid model for describing the CTPs with such linkers has been further developed. For different NP arrays, either a general analytical expression or a numerical solution has been obtained for the CTP frequencies. It has been shown that the CTP frequencies lie in the IR spectral range and depend on both the linker conductivity and the system geometry. It is found that the electron currents of plasmon oscillations correspond to minor charge displacements of only few electrons. It has been established that the interaction of the CTPs with an external electromagnetic field strongly depends on the symmetry of the electron currents in the linkers, which, in turn, are fully governed by the symmetry of the investigated system. The extended model and the analytical expressions for the CTPs frequencies have been compared with the conventional finite difference time domain simulations. It is argued that applications of this novel type of plasmon may have wide ramifications in the area of chemical sensing.

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Держатели документа:
International Research Center of Spectroscopy and Quantum Chemistry - IRC SQC, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
National Research Tomsk State University, Tomsk, 634050, Russian Federation
Institute of Computational Modelling, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Federal Siberian Research Clinical Centre, FMBA of Russia, Krasnoyarsk, 660037, Russian Federation
Kyungpook National University, Daegu, 41566, South Korea

Доп.точки доступа:
Fedorov, A. S.; Федоров, Александр Семенович; Visotin, M. A.; Высотин, Максим Александрович; Gerasimov, V. S.; Polyutov, S. P.; Avramov, P. A.
}
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14.


   
    Nematic structures under conical anchoring at various director tilt angles specified by polymethacrylate compositions / D. A. Kostikov, M. N. Krakhalev, O. O. Prishchepa, V. Y. Zyryanov // Polymers. - 2021. - Vol. 13, Is. 17. - Ст. 2993, DOI 10.3390/polym13172993. - Cited References: 49. - Mikhail N. Krakhalev and Oxana O. Prishchepa acknowledge financial support from Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science (No 20-42-240007) . - ISSN 2073-4360
   Перевод заглавия: Нематические структуры с коническим сцеплением при различных углах наклона директора, задаваемых составами полиметакрилатов
РУБ Polymer Science
Рубрики:
LIQUID-CRYSTAL
   PRETILT ANGLE

   ALIGNMENT LAYERS

   SURFACE

   INTERFACE

Кл.слова (ненормированные):
conical anchoring -- polymethacrylate -- nematic liquid crystal -- orientational structure -- director tilt angle -- domain wall -- electrically-induced reorientation
Аннотация: Dependence of the director tilt angle of nematic liquid crystal (LC) under conical anchoring from the two-component polymer mixture composition has been studied. We varied the ratio of poly(isobutyl methacrylate) (PiBMA), which specifies a conical anchoring for the nematic liquid crystal LN-396, and poly(methylmethacrylate) (PMMA) assigning a tangential alignment for the same nematic. An oblique incidence light technique to determine a tilt angle has been used. It has been shown that the tilt angle increases from 0∘ to 47.7∘ when PiBMA:PMMA ratio changes in the range 30:70 to 100:0. The specific optical textures viewed under the polarizing microscope and proper orientational structures have been considered for various compositions of the polymer films. An electric field action on the formed orientational structures has been investigated. The obtained results are promising for the application in various electro-optical LC devices with a conical anchoring in which the director tilt angle is a crucial parameter: a controlled diffraction gratings, an electrically operated achromatic rotators of linear light polarization, etc.

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

Доп.точки доступа:
Kostikov, D. A.; Костиков, Денис Андреевич; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science [20-42-240007]
}
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15.


   
    Small-angle scattering and radiation polarization by a stretched polymer film with nematic liquid crystal droplets having a single-domain structure / V. A. Loiko, A. V. Konkolovich, A. A. Miskevich [et al.] // Opt. Spectrosc. - 2020. - Vol. 128, Is. 3. - P. 331-338, DOI 10.1134/S0030400X20030121. - Cited References: 24. - This work was carried out within the framework of the agreement on interacademic collaboration between the National Academy of Sciences of Belarus and Siberian Branch of the Russian Academy of Sciences. It was supported by the Belarusian Republican Foundation for Fundamental Research (project no. F18RA-003). M.N. Krakhalev acknowledges the support of the Russian Foundation for Basic Research, the Government of Krasnoyarsk krai, and Krasnoyarsk Krai Foundation of Science (grant no. 18-42-243006). . - ISSN 0030-400X. - ISSN 1562-6911
РУБ Optics + Spectroscopy
Рубрики:
IONIC MODIFICATION
   LIGHT

Кл.слова (ненормированные):
light scattering -- radiation polarization -- liquid crystal
Аннотация: The coefficient of directed transmittance of a stretched polymer-dispersed liquid crystal film with a defect-free single-domain liquid crystal droplet structure formed by a stretched surfactant-doped film and the polarization degree of forward-transmitted light in the visible and near-infrared spectrum ranges are studied. Results are presented for the 5CB, E7, and E44 nematic liquid crystals. Dependences of the transmission coefficient and polarizing ability of the film on the photodetector field of view are studied. Relationships allowing one to determine film parameters at which the transmission coefficient and polarizing ability of the films simultaneously reach values close to limit ones (0.5 and ±1.0, respectively) are obtained in the Foldy–Twersky and anomalous diffraction approximations.

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Публикация на русском языке Малоугловое рассеяние и поляризация излучения вытянутой полимерной пленкой с каплями нематического жидкого кристалла, имеющими монодоменную структуру [Текст] / В. А. Лойко, А. В. Конколович, А. А. Мискевич, М. Н. Крахалев // Оптика и спектроскопия. - 2020. - Т. 128 Вып. 3. - С. 343-350

Держатели документа:
Natl Acad Sci Belarus, Stepanov Inst Phys, Minsk 220072, BELARUS.
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Loiko, V. A.; Konkolovich, A. V.; Miskevich, A. A.; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Belarusian Republican Foundation for Fundamental Research [F18RA-003]; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Government of Krasnoyarsk krai; Krasnoyarsk Krai Foundation of Science [18-42-243006]
}
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16.


   
    Collective resonances in hybrid photonic-plasmonic nanostructures / A. E. Ershov, R. G. Bikbaev, I. L. Rasskazov [et al.] // J. Phys.: Conf. Ser. - 2020. - Vol. 1461, Is. 1. - Ст. 012046DOI 10.1088/1742-6596/1461/1/012046. - Cited References: 11. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science (Grant No. 18-42-240013); A.E. thanks the grant of the President of Russian Federation (agreement 075-15-2019-676)
Кл.слова (ненормированные):
Hybrid systems -- Plasmonics -- Time domain analysis -- 1-D photonic crystal -- Defect layers -- Nanodisks -- Periodic arrays -- Plasmonic nanostructures -- Rayleigh anomalies -- Spectral position -- Theoretical modeling -- Finite difference time domain method
Аннотация: We present the theoretical model to predict the spectral position of Rayleigh anomalies emerged in hybrid system consisting of periodic array of plasmonic nanodisks embeded into the middle of defect layer of 1D photonic crystal (PhC). The spectral positions of these new emerged Rayleigh anomalies agree well with the results of exact simulations with Finite-Difference Time-Domain (FDTD) method.

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Держатели документа:
Institute of Computational Modeling SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Siberian State University of Science and Technology, Krasnoyarsk, 660014, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Optics, University of Rochester, Rochester, NY 14627, United States

Доп.точки доступа:
Ershov, A. E.; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Rasskazov, I. L.; Gerasimov, V. S.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Polyutov, S. P.; Karpov, S. V.; Карпов, Сергей Васильевич; International Conference on Metamaterials and Nanophotonics(4th ; 15 - 19 July 2019 ; St. Petersburg, Russian Federation)
}
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17.


   
    Micromagnetic simulation of domain structure in thin permalloy films with in-plane and perpendicular anisotropy / P. N. Solovev, A. V. Izotov, B. A. Belyaev, N. M. Boev // Physica B. - 2020. - Vol. 604. - Ст. 412699, DOI 10.1016/j.physb.2020.412699. - Cited References: 31. - This work was supported by the Ministry of Science and Higher Education of the Russian Federation , agreement number 075-11-2019-054 dated 22.11.2019 . - ISSN 0921-4526
   Перевод заглавия: Микромагнитное моделирование доменной структуры тонких пермаллоевых пленок с одноосной планарной и перпендикулярной анизотропией
Кл.слова (ненормированные):
Micromagnetic simulation -- Thin magnetic film -- Magnetic anisotropy -- Stripe domains -- Hysteresis loop -- Saturation field
Аннотация: We investigate the domain structure formation and magnetization processes in thin permalloy films with in-plane and perpendicular magnetic anisotropy by using micromagnetic simulation. We show that the films of thicknesses less than a critical value Lcr are in the monodomain state, and their magnetization processes are specified by the in-plane anisotropy. Above the critical thickness Lcr, the perpendicular anisotropy dominates, leading to the formation of the stripe domain structure that significantly complicates the magnetization reversal. The values of the critical thickness, parameters of the domain structure, and the saturation field obtained from the micromagnetic simulations are compared with the corresponding values calculated using analytical expressions derived by Murayama in the framework of the domain structures theory.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 50/38 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, 79 Svobodny pr., Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Solovev, P. N.; Соловьев, Платон Николаевич; Izotov, A. V.; Изотов, Андрей Викторович; Belyaev, B. A.; Беляев, Борис Афанасьевич; Boev, N. M.; Боев, Никита Михайлович
}
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18.


    Паршин, Александр Михайлович.
    Оптическое пропускание доменной структуры нематика на поверхности полимера в магнитном поле / А. М. Паршин, А. В. Баранник // Жидк. кристаллы и их практич. использ. - 2020. - Т. 20, Вып. 2. - С. 62-68 ; Liq. Cryst. Appl., DOI 10.18083/LCAppl.2020.2.62. - Библиогр.: 20 . - ISSN 1991-3966
   Перевод заглавия: Optical transmission of the nematic domain structure on the polymer surface in a magnetic field
РУБ Crystallography
Рубрики:
LIGHT-SCATTERING
   DEFECTS

Кл.слова (ненормированные):
нематический жидкий кристалл -- поликарбонат -- доменная структура -- интерференция света -- рассеяние света -- магнитное поле -- nematic liquid crystal -- polycarbonate -- domain structure -- light -- interference -- light scattering -- magnetic field
Аннотация: Исследовано распространение лазерного луча через слой гибридно-упорядоченного нематика с поверхностной линией дисклинации, состоящий из доменов с радиальной конфигурацией нематического директора на пленке поликарбоната. Ориентационная структура в объеме домена трансформируется в планарную одноосную, задаваемую линией дисклинации, либо в гомеотропную под действием магнитного поля. Получена зависимость интенсивности света, прошедшего через слой, от магнитного поля, прикладываемого перпендикулярно поверхности полимера. Оптическое пропускание сопровождалось интерференционными минимумами и максимумами. Представлена модель интерференции света, основанная на двулучепреломлении, учитывающая рассеяние на ориентационно-структурных неоднородностях доменного ансамбля. Из рассмотрения свободной энергии жидкого кристалла и эффектов двулучепреломления выведено аналитическое выражение, устанавливающее зависимость между интенсивностью света и напряженностью магнитного поля, совпадающее с экспериментом.
The propagation of a laser beam through a layer of a hybrid ordered nematic on a polycarbonate film is studied. The nematic has a surface disclination line consisting of domains with a radial configuration of the nematic director. The orientational structure in the domain volume can be transformed into a planar uniaxial structure defined by a disclination line or into a homeotropic one under the influence of a magnetic field. The dependence of the light intensity transmitted through the layer on the magnetic field applied perpendicular to the polymer surface is obtained. Optical transmission was accompanied by interference minima and maxima. Light interference model based on birefringence which takes into account scattering by the orientation-structural inhomogeneities of the domain ensemble is presented. Considering the analysis of the liquid crystal free energy and the birefringence effects, an analytical expression is derived. It establishes the relationship between the light intensity and the magnetic field strength, which coincides with the experiment.

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Институт физики им. Л. В. Киренского, Федеральный исследовательский центр «Красноярский научный центр Сибирского отделения Российской академии наук», Академгородок, д. 50, 660036 Красноярск, Россия
Сибирский федеральный университет, пр. Свободный, 79, 660041 Красноярск, Россия

Доп.точки доступа:
Баранник, Алексей Владимирович; Barannik, A. V.; Parshin, A. M.

}
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19.


    Паршин, Александр Михайлович.
    Проявление интерференции в электрооптическом отклике нематика в доменной структуре на поверхности поликарбоната / А. М. Паршин, А. В. Баранник // Жидк. крист. и их практич. использ. - 2019. - Т. 19, № 1. - С. 62-69 ; Liq. Cryst. Appl., DOI 10.18083/LCAppl.2019.1.62. - Библиогр.: 20. - Работа выполнена при частичном финансировании по интеграционному проекту № 356-2018-0058 СО РАН. . - ISSN 1991-3966. - ISSN 2499-–964
   Перевод заглавия: Interference phenomenon in electro-optic response of nematic in domain structure on polycarbonate surface
РУБ Crystallography
Рубрики:
FRIEDERICKSZ THRESHOLD
   LAYER

   FILM

Кл.слова (ненормированные):
нематический жидкий кристалл -- поликарбонат -- интерференция света -- рассеяние света -- электрическое поле -- nematic liquid crystal -- polycarbonate -- light interference -- light scattering -- electric field
Аннотация: Исследованы интерференционные изменения интенсивности неполяризованного света, распространяющегося через ансамбль жидкокристаллических доменов, сформированных на поверхности поликарбоната. Расчетными методами получены выражения для интенсивности света и фазовой задержки между обыкновенными и необыкновенными лучами с учетом изменения ориентации директора нематика под действием электрического поля. Представлены экспериментальные зависимости интенсивности света от напряжения, согласующиеся с расчетными. Изучено рассеяние света при его распространении через формирующиеся в процессе роста домены. Показано, что интерференционные изменения интенсивности при варьировании напряжения обусловливаются суперпозицией необыкновенных и обыкновенных лучей, проходящих через домены.
Interference variations of the intensity of the unpolarized light propagating through the ensemble of liquid crystal domains formed on the polycarbonate surface were investigated. By calculation methods, the expressions for the light intensity and the phase delay between ordinary and extraordinary rays were obtained taking into account the change of the nematic director orientation under the action of the electric field. Experimental dependences of the light intensity on voltage are consistent with the calculated ones. The scattering of light during its propagation through the growing domains was studied. It is shown that the interference intensity changes at varying voltage are caused by the superposition of extraordinary and ordinary rays passing through the domains.

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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, 50 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, 79 Svobodny Ave, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Баранник, Алексей Владимирович; Barannik, A. V.; Parshin, A. M.

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20.


   
    Phase transitions in bismuth pyrostannate upon substitution of tin by iron ions / L. V. Udod [et al.] // J. Alloys Compd. - 2019. - Vol. 804. - P. 281-287, DOI 10.1016/j.jallcom.2019.07.020. - Cited References: 44. - The reported study was funded by RFBR according to the research project № 18-52-00009 Bel_a; The reported study was funded by Russian Foundation for Basic Research , Government of Krasnoyarsk Territory , Krasnoyarsk Regional Fund of Science № 18-42-240001 r_a, to the research project: «Inversion of the sign of the components of the magnetoelectric tensor on the temperature in films of bismuth garnet ferrite replaced by neodymium». This work is part of the research program the state order № 3.5743.2017/6.7. . - ISSN 0925-8388
Кл.слова (ненормированные):
Crystal structure -- Domain structure -- Optical properties -- Phase transitions -- Thermal expansion -- Ultrasonics
Аннотация: The Bi2(Sn1-хFeх)2O7 (х = 0, 0.1, 0.2) compounds have been synthesized by the solid-state reaction technique. The structure of the synthesized compounds has been investigated in the temperature range of 80–500 K using the thermal expansion and ultrasound damping coefficients and IR spectroscopy. The shift -type structural transitions for the composition with х = 0.2 in the low-temperature region has been established. The effect of iron ions on the phase boundaries of the polymorphic transitions in the Bi2Sn2O7 compound has been observed. Softening of the phonon modes near the phase transitions at different iron concentrations has been found.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok, 50, Krasnoyarsk, 660036, Russian Federation
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, 660037, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Udod, L. V.; Удод, Любовь Викторовна; Aplesnin, S. S.; Аплеснин, Сергей Степанович; Sitnikov, M. N.; Romanova, O. B.; Романова, Оксана Борисовна; Molokeev, M. S.; Молокеев, Максим Сергеевич
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