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Вид документа : Однотомное издание
Шифр издания :
Заглавие : International workshop on actual problems of condensed matter physics : Program. Book of abstracts
Выходные данные : Krasnoyarsk, 2017
Колич.характеристики :30 с
Коллективы : Federal Research Center KSC SB RAS, Kirensky Institute of Physics, Siberian Federal Univercity, International Workshop on Actual Problems of Condensed Matter Physics (27 Mar. - 1 Apr. 2017; Krasnoyarsk/ Cheremushki) :
Содержание : Magnetic and transport properties of the epitaxial Fe3Si film on a Si substrate/ I. A. Bondarev. The magnetic anisotropy of the Fe and Fe(1-x)Si(x) thin films depend on/ I. A. Yakovlev [и др.]. Inverted opals as the Josephson networks of weak links/ S. I. Popkov [и др.]. Electronic structure and Fermi surface within the cluster perturbation theory in X-operators representation/ S. Nikolaev, V. I. Kuz'min, S. G. Ovchinnikov. DFT investigation of electronic and optical magnetic properties of one dimensional transition metal halide structuresTmHaI3/ A. S. Fedorov [и др.]. Effect of interatomic exchange interaction on spin crossover and Mott-Hubbard transition under high pressure and the physical properties of the low Earth’s mantle/ S. G. Ovchinnikov [и др.]. Extremely high magnetic-field sensitivity of charge transport in the Mn/SiO2/p-Si hybrid structure/ I. A. Tarasov [и др.]. Marnetic-field sensitivity of charge transport in silicon-based hybrid structures/ N. V. Volkov [et al.]. Fabrication of multi-terminal planar devices based on epitaxial Fe1-xSix films grown on Si(111)/ A. V. Lukyanenko, A. S. Tarasov, I. A. Tarasov [et al.] ; A. V. Luyanenko [и др.]. Magnetic field-driven lateral photovoltaic effect in the Fe/SiO2/p-Si hibrid structure with the Scottky barrier/ M. V. Rautskii [и др.]. Small angle X-ray scattering and atomic structure of aptamer biomolecules/ R. Moryachkov [и др.]. Iron silicides and pure iron epitaxial and highly-textured nanostructures on silicon: growth and their physical properties/ I. A. Tarasov [и др.]. Magnetic nanoparticles and DNA-aptamers conjugates for diagnostics and therapy of cancer/ A. E. Sokolov [и др.]. The microscopic origin of ferromagnetism in Fe silicides/ I. S. Sandalov [и др.].
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Вид документа : Однотомное издание
Шифр издания :
Автор(ы) : Loiko V. A., Konkolovich A. V., Miskevich A. A., Krakhalev M. N., Prishchepa O. O., Shabanov A. V., Zyryanov V. Ya.
Заглавие : Electro-optical response of a monolayer polymer dispersed nematic liquid crystal film doped with surfactant
Место публикации : Liquid Crystal Polymer Nanocomposites: Woodhead Publishing, 2022. - Chapter 7. - P.163-211. - , DOI 10.1016/B978-0-12-822128-0.00006-6
Примечания : Cited References: 86
Аннотация: Light scattering and transmission by a monolayer polymer dispersed liquid crystal film containing liquid crystal droplets with inhomogeneous anchoring of liquid crystal molecules at the polymer-droplet interface is considered theoretically and experimentally. The developed optical model is based on the anomalous diffraction and interference approximations of the theory of scattering of waves. It is applied to describe the interference quenching effect for the coherently transmitted light and electrically controllable symmetry breaking effect in small-angle structure of light scattered by film containing droplets with inhomogeneous anchoring. The analysis of transmittance and reflectance of the one-dimensional photonic crystals composed of monolayers is carried out. The formation of the photonic band gaps is analyzed.
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Вид документа : Однотомное издание
Шифр издания :
Заглавие : Soft photonic crystals and metamaterials
Выходные данные : Bazel; Beijing; Wuhan: MDPI, 2022
Колич.характеристики :VII с ; 127 с
ISBN, Цена 978-3-0365-6074-8
ISBN, Цена 978-3-0365-6073-1
Идентификационный №: DOI 10.3390/ma15228096
Содержание : Special issue: Soft photonic crystals and metamaterials/ I. V. Timofeev, W. Lee. Double-resolved beam steering by metagrating-based Tamm plasmon polariton/ R. G. Bikbaev, D. N. Maksimov, K. - P. Chen, I. V. Timofeev. Chiral optical Tamm states at the interface between a Dye-doped cholesteric liquid crystal and an anisotropic mirror/ A. Yu. Avdeeva, S. Ya. Vetrov, R. G. Bikbaev [et al.]. Chiral-selective Tamm plasmon polaritons/ M. -Y. Lin, W. -H. Xu, R. G. Bikbaev [et al.].
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Вид документа : Однотомное издание (Препринт)
Шифр издания :
Автор(ы) : Karpov S. V., Myslivets S. A., Popov A. K., Slabko V. V.
Заглавие : Nonlinear optical properties of organic dye vapors : preprint. № 701Ф
Выходные данные : Красноярск: ИФ СО АН СССР, 1991
Колич.характеристики :41 с
Коллективы : Академия наук СССР, Сибирское отделение АН СССР, Институт физики им. Л.В. Киренского Сибирского отделения АН СССР
Примечания : Cited References :
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Вид документа : Однотомное издание (Препринт)
Шифр издания : В37/M17
Автор(ы) : Greben'kova Yu., Sokolov A. Е., Molokeev M. S., Stepanova E., Chichkov V. I., Andreev N. V., Edelman I. S.
Заглавие : Magnetic and magneto-optical properties of the Pr0.8Sr0.2MnO3 and Pr0.6Sr0.4MnO3 thin films : препринт. 854Ф
Выходные данные : Krasnoyarsk, 2014
Колич.характеристики :16 с
Коллективы : Институт физики им. Л.В. Киренского Сибирского отделения РАН, Национальный исследовательский технологический университет "МИСИС", Уральский Федеральный университет им. Первого Президента России Б.Н. Ельцина
Примечания : Bibliogr. :
ГРНТИ : 29.19.16 + 29.19.37 + 29.31.21
Предметные рубрики: Тонкие пленки-- Свойства магнитные
Тонкие пленки-- Свойства оптические
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Krylova S. N., Aleksandrovsky A. S., Roginskii E. M., Krylov A. A., Gudim I. A., Vtyurin A. N.
Заглавие : Optical properties of the HoGa3(BO3)4 crystal: experiment and ab initio calculation
Место публикации : Ferroelectrics. - 2020. - Vol. 559, Is. 1. - P.135-140. - ISSN 00150193 (ISSN), DOI 10.1080/00150193.2020.1722015
Примечания : Cited References: 22. - This work was supported by the Russian Foundation for Basic Research (grant No 18-02-00754)
Аннотация: Single crystal of HoGa3(BO3)4 has been grown using solution-melt synthesis. The optical band gap determined from the measured absorption spectrum is due to direct allowed transition and equals to 4.14 eV. The optical properties of this crystal are calculated by the plane-wave pseudo-potential method based on density functional theory. The structure of the crystal has been optimized. The electronic structure of HoGa3(BO3)4 is calculated. The experimental and theoretical fundamental absorption spectra are compared. The calculated bandgap is in good agreement with the experimental data.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Verpekin, Victor V., Semeikin, Oleg, V, Vasiliev A. D., Kondrasenko, Alexander A., Belousov Yu. A., Ustynyuk, Nikolai A.
Заглавие : Catalyzed M–C coupling reactions in the synthesis of σ-(pyridylethynyl)dicarbonylcyclopentadienyliron complexes
Коллективы : Russian Science FoundationRussian Science Foundation (RSF) [18-73-00150]
Место публикации : RSC Adv. - 2020. - Vol. 10, Is. 29. - P.17014-17025. - ISSN 2046-2069(eISSN), DOI 10.1039/d0ra02333g
Примечания : Cited References: 86. - This research was funded by a grant from the Russian Science Foundation (project No. 18-73-00150).
Предметные рубрики: NONLINEAR-OPTICAL PROPERTIES
METAL ALKYNYL COMPLEXES
CARBON BOND FORMATION
Аннотация: The reactions between terminal ethynylpyridines, (trimethylsilyl)ethynylpyridines and cyclopentadienyliron dicarbonyl iodide were studied under Pd/Cu-catalyzed conditions to develop a synthetic approach to the σ-alkynyl iron complexes Cp(CO)2Fe–C≡C–R (R = ortho-, meta-, para-pyridyl). Depending on the catalyst and reagents used, the yields of the desired σ-pyridylethynyl complexes varied from 40 to 95%. In some cases the reactions with ortho-ethynylpyridine gave as byproduct the unexpected binuclear FePd μ-pyridylvinylidene complex [Cp(CO)Fe{μ2-η1(Cα):η1(Cα)-κ1(N)-Cα=Cβ(H)(o-C5H4N)}(μ-CO)PdI]. The conditions, catalysts, and reagents that provide the highest yields of the desired σ-pyridylethynyl iron compounds were determined. The methods developed allowed the synthesis of the corresponding σ-4-benzothiadiazolylethynyl complex Cp(CO)2Fe–C≡C–(4-C6H3N2S) as well. Eventually, synthetic approaches to σ-alkynyl iron complexes of the type Cp(CO)2Fe–C≡C–R (R = ortho-, meta-, para-pyridyl, 4-benzothiadiazol-2,1,3-yl) based on the Pd/Cu-catalyzed cross-coupling reactions were elaborated.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gardymova, Anna P., Krakhalev M. N., Zyryanov V. Ya.
Заглавие : Optical textures and orientational structures in cholesteric droplets with conical boundary conditions
Коллективы : Russian Science FoundationRussian Science Foundation (RSF) [18-72-10036]
Место публикации : Molecules. - 2020. - Vol. 25, Is. 7. - Ст.1740. - ISSN 1420-3049(eISSN), DOI 10.3390/molecules25071740
Примечания : Cited References: 53. - The authors are grateful for the financial support by the Russian Science Foundation (grant No. 18-72-10036).
Предметные рубрики: DISPERSED LIQUID-CRYSTALS
CHIRAL NEMATIC DROPLETS
IONIC MODIFICATION
Аннотация: Cholesteric droplets dispersed in polymer with conical boundary conditions have been studied. The director configurations are identified by the polarising microscopy technique. The axisymmetric twisted axial-bipolar configuration with the surface circular defect at the droplet’s equator is formed at the relative chirality parameter N0≤2.9 . The intermediate director configuration with the deformed circular defect is realised at 2.9N03.95 , and the layer-like structure with the twisted surface defect loop is observed at N0≥3.95 . The cholesteric layers in the layer-like structure are slightly distorted although the cholesteric helix is untwisted.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shtarev D. S., Kevorkyants R., Molokeev M. S., Shtareva A. V.
Заглавие : Effect of composition on the optical and photocatalytic properties of visible light responsive materials Bi26-xMgxO40
Место публикации : Inorg. Chem. - 2020. - Vol. 59, Is. 12. - P.8173-8183. - ISSN 00201669 (ISSN), DOI 10.1021/acs.inorgchem.0c00486
Примечания : Cited References: 41. - This study was supported by a grant from the Russian Science Foundation (Project No 19-73-10013). The authors acknowledge the help of the Yu. A. Kosygin Institute of Tectonics and Geophysics FEB RAS in conducting the study and offering their research equipment. The authors also thank the Research Center on Nanophotonics, the Center for Physical Methods of Surface Investigation (Dr. Alexandra Koroleva), and the Computing Centre of the Saint-Petersburg State University. R.K. acknowledges financial support from a grant from the Saint-Petersburg State University (Pure ID 39054581)
Аннотация: We report the synthesis and the crystal and electronic structure as well as the optical and photocatalytic properties of novel photoactive materials of the general formula Bi26–xMgxO40. Two compounds with compositions of Bi24.28(3)Mg1.72(3)O40 and Bi24.05(3)Mg1.95(3)O40 are synthesized using the pyrolytic method. According to X-ray diffraction analysis, the materials are monocrystalline species. Their electronic bandgaps determined from Tauc plots are 2.41 eV [Bi24.28(3)Mg1.72(3)O40] and 2.69 eV [Bi24.05(3)Mg1.95(3)O40]. Keeping in mind that optical bandgaps are typically larger than their electronic counterparts, we find that the bismuthate bandgaps match well that of Bi24Mg2O40 (2.26 eV) predicted by density functional theory. Apparently, the synthesized bismuthates are indirect bandgap semiconductors just like Bi24Mg2O40. Both materials demonstrate nearly identical luminescence spectra. Their luminescence emission at 620 nm is most efficiently excited by 365 nm light. The materials’ photocatalytic properties are evaluated in a visible light-induced photocatalytic phenol degradation reaction. Rather low activity of both compounds is detected. However, Bi24.05(3)Mg1.95(3)O40 is ∼2 times more photocatalytically active than Bi24.28(3)Mg1.72(3)O40, which is associated with a higher Bi5+ content in the former.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vetrov S. Ya., Timofeev I. V., Shabanov V. F.
Заглавие : Localized modes in chiral photonic structures
Место публикации : Phys. Usp. - 2020. - Vol. 63, Is. 1. - P.33-56. - ISSN 1063-7869, DOI 10.3367/UFNe.2018.11.038490. - ISSN 1468-4780(eISSN)
Примечания : Cited References: 251
Предметные рубрики: CHOLESTERIC LIQUID-CRYSTAL
CONTROLLED LIGHT-SCATTERING
SCULPTURED THIN-FILMS
Аннотация: We discuss chiral structures in self-organizing, artificial, and biological materials. A review of experimental studies and recent advances in the localization of light in chiral structures is given. The behavior of polarized resonant modes in such structures is examined using the example of a one-dimensional photonic crystal containing liquid crystal materials. The anomalous spectral shifts of transmission peaks are interpreted as the contribution of the geometric phase caused by the twisting of the layers of the liquid crystal. The optical Tamm state localized at the boundary between chiral and nonchiral mirrors in the form of a cholesteric layer and a polarization-preserving anisotropic mirror is analytically and numerically described. Considerable attention is paid to the presentation of the properties of localized optical modes in the cholesteric with a resonant metal-dielectric nanocomposite. New possibilities for controlling the properties of the photonic structure are noted, due to the combination of the dispersion of the resonant medium and the intrinsic dispersion of the cholesteric. Attention is focused on controlled hybrid modes in the cholesteric structure formed by the coupling of localized modes. Possible applications and further ways of developing the concept of chiral photonic structures are deliberated.
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