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Accidental bound state in the continuum in a chain of dielectric disks / M. S. Sidorenko, O. N. Sergaeva, Z. F. Sadrieva [et al.] // 2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference : IEEE, 2021. - Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (Jun 21-25, 2021, Electr. Network), DOI 10.1109/CLEO/Europe-EQEC52157.2021.9592618. - Cited References: 2. - The work was supported by RFBR (19-02-00419), the grant of the President of the Russian Federation (MK2224.2020.2) and the Foundation for the Advancement of Theoretical Physics and Mathematics BASIS . - ISBN 978-1-6654-1876-8

РУБ Engineering, Electrical & Electronic + Quantum Science & Technology + Optics + Physics, Applied

Аннотация: Dielectric resonators are open systems whose eigenmodes couple to the radiation continuum resulting in nonzero radiation losses. For a long time, it was believed that only guided modes with frequencies below the light line were decoupled from the radiation continuum [1] . In the early 2000’s, several counterexamples of perfectly localized states – i.e. totally decoupled from the radiation continuum – at frequencies above the light line were proposed in dielectric gratings and photonic crystal waveguides [2] . Such states are known as bound states in the continuum (BIC).

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Держатели документа:
ITMO Univ, Dept Phys & Engn, St Petersburg 197101, Russia.
MIT, Elect Res Lab, 50 Vassar St, Cambridge, MA 02139 USA.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Sidorenko, M. S.; Sergaeva, O. N.; Sadrieva, Z. F.; Roques-Carmes, C.; Muraev, P. S.; Мураев, Павел Сергеевич; Maksimov, D. N.; Максимов, Дмитрий Николаевич; Bogdanov, A. A.; RFBRRussian Foundation for Basic Research (RFBR) [19-02-00419]; Russian FederationRussian Federation [MK2224.2020.2]; Foundation for the Advancement of Theoretical Physics and Mathematics BASIS; Conference on Lasers and Electro-Optics Europe; European Quantum Electronics Conference(2021 ; June)
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European Quantum Electronics Conference (2021 ; June ; 21- 25)

Accidental bound state in the continuum in a chain of dielectric disks / M. S. Sidorenko, O. N. Sergaeva, Z. F. Sadrieva [et al.] // Optics InfoBase Conference Papers. - 2021. - 2021 European Quantum Electronics Conference, EQEC 2021 - Part of 2021 Conference on Lasers and Electro-Optics Europe, CLEO 2021 (21 June 2021 through 25 June 2021, Virtual, Online) Conference code: 174130. - Ст. jsi_2_4. - Cited References: 2. - The work was supported by RFBR (19-02-00419), the grant of the President of the Russian Federation (MK-2224.2020.2) and the Foundation for the Advancement of Theoretical Physics and Mathematics BASIS
Аннотация: We experimentally analyze for the first time an off-Gamma BIC in a one-dimensional periodic chain of disks and demonstrate its transformation to a resonant state with the decrease of the chains length.

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Держатели документа:
Department of Physics and Engineering, ITMO University, St. Petersburg, 197101, Russian Federation
Research Laboratory of Electronics, Massachusetts Institute of Technology, 50 Vassar St., Cambridge, MA, United States
Kirensky Institute of Physics, Federal Research Center, KSC, SB, RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Sidorenko, M. S.; Sergaeva, O. N.; Sadrieva, Z. F.; Roques-Carmes, C.; Muraev, P. S.; Мураев, Павел Сергеевич; Maksimov, D. N.; Максимов, Дмитрий Николаевич; Bogdanov, A. A.; European Quantum Electronics Conference(2021 ; June ; 21- 25)
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Anomalous light diffraction by cholesterics encapsulated in films / V. F. Shabanov, S. Ya. Vetrov, G. M. Zharkova, V. M. Khachaturyan // Journal of Molecular Electronics. - 1990. - Vol. 6, Is. 3. - P. 141-144

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Доп.точки доступа:
Shabanov, V. F.; Шабанов, Василий Филиппович; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Zharkova, G. M.; Khachaturyan, V. M.
}
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    Arkhipkin, V. G.
    Adiabatic propagation of short pulses under conditions of electromagnetically induced transparency / V. G. Arkhipkin, I. V. Timofeev // Quantum Electron. - 2000. - Vol. 30, Is. 2. - P. 180-184, DOI 10.1070/QE2000v030n02ABEH001683. - Cited References: 31 . - ISSN 1063-7818
   Перевод заглавия: Адиабатическое распространение коротких импульсов в условиях электромагнитно-индуцированной прозрачности

РУБ Engineering, Electrical & Electronic + Physics, Applied
Рубрики:
POPULATION TRANSFER
   LASER-PULSES
   INTERFERENCE
   ENHANCEMENT
   COHERENCE
   QUANTUM
   SYSTEMS
   INDEX
Аннотация: The spatial and temporal dynamics of two short pulses propagating in an optically dense medium of resonant three-level Lambda-atoms is investigated numerically and analytically. The maximum coherence for the Raman transition due to coherent population trapping. it is shown that, at the initial stage of propagation, the waveforms of such pulses only slightly change along the length of the medium, which may considerably exceed the length of linear absorption for a single weak pulse. As the length of the absorbing medium increases, the energy of the probe (first) pulse is completely transferred into the second (control) pulse.

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Публикация на русском языке Архипкин, Василий Григорьевич. Адиабатическое распространение коротких импульсов в условиях электромагнитно-индуцированной прозрачности [Текст] / В. Г. Архипкин, И. В. Тимофеев // Квант. электрон. - 2000. - Т. 30 № 2. - С. 180-184

Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Timofeev, I. V.; Тимофеев, Иван Владимирович; Архипкин, Василий Григорьевич
}
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Arkhipkin, V. G.
Effect of electromagnetically induced transparency on the spectrum of defect modes in a one-dimensional photonic crystal / V. G. Arkhipkin, S. A. Myslivets // Quantum Electronics. - 2009. - Vol. 39, Is. 2. - P. 157-162, DOI 10.1070/QE2009v039n02ABEH013813 . - ISSN 1063-7818
Кл.слова (ненормированные):
Electromagnetically induced trans- parency -- Photonic crystals -- Defect layers -- Defect mode -- Electromagnetically induced trans- parency -- One dimensional photonic crystal -- Spatial in-homogeneity -- Spatial overlap -- Transmission spectrums -- Crystal atomic structure -- Defects -- Silicon on insulator technology -- Transparency -- Photonic crystals
Аннотация: We studied the transmission spectrum of a one-dimensional photonic crystal containing a defect layer in which electromagnetically induced transparency is possible. The analysis is performed taking into account the spatial inhomogeneity of interacting fields in the photonic crystal. It is found that the transmission spectrum of such a photonic crystal depends on the spatial overlap of defect modes excited by probe and control radiations. It is shown that electromagnetically induced transparency can result in a considerable narrowing of the defect mode spectrum. В© 2009 Kvantovaya Elektronika and Turpion Ltd.

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Держатели документа:
L.V. Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Academgorodok, 660036, Krasnoyarsk, Russian Federation
Siberian Federal University, prosp. Svobodnyi 79, 660041 Krasnoyarsk, Russian Federation

Доп.точки доступа:
Myslivets, S. A.; Мысливец, Сергей Александрович; Архипкин, Василий Григорьевич
}
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    Atypical quantum confinement effect in silicon nanowires / P. B. Sorokin [et al.] // J. Phys. Chem. A. - 2008. - Vol. 112, Is. 40. - P9955-9964, DOI 10.1021/jp805069b. - Cited Reference Count: 25. - Гранты: This work was in part partially supported by a CREST (Core Research for Evolutional Science and Technology) grant in the Area of High Performance Computing for Multiscale and Multiphysics Phenomena from the Japan Science and Technology Agency (JST) as well as by Russian Fund of Basic Researches (grant 08-02-01096) (L.A.C.). P.V.A. acknowledges the encouragement of Dr. Keiji Morokuma, Research Leader at Fukui Institute for Fundamental Chemistry. The geometry of all presented structures was visualized by ChemCraft software.SUP25/SUP L.A.C. acknowledges I. V. Stankevich for help and fruitful discussions. P.B.S. is grateful to the Joint Supercomputer Center of the Russian Academy of Sciences for access to a cluster computer for quantum-chemical calculations. - Финансирующая организация: Japan Science and Technology Agency (JST); Russian Fund of Basic Researches [08-02-01096] . - OCT 9. - ISSN 1089-5639
Рубрики:
ELECTRONIC-STRUCTURE
   OPTICAL-PROPERTIES
   SI
   DENSITY
   WIRES
   EXCHANGE
   ATOMS
   DOTS
Кл.слова (ненормированные):
Electric wire -- Energy gap -- Gallium alloys -- Mathematical models -- Nanostructured materials -- Nanostructures -- Nanowires -- Quantum confinement -- Quantum electronics -- Semiconductor quantum dots -- Silicon -- Ami methods -- Band gaps -- Blue shifts -- Dinger equations -- Linear junctions -- Monotonic decreases -- Quantum confinement effects -- Quantum dots -- Semiempirical -- Silicon nanowires -- System sizes -- Theoretical models -- Nanocrystalline silicon -- nanowire -- quantum dot -- silicon -- article -- chemistry -- electron -- quantum theory -- Electrons -- Nanowires -- Quantum Dots -- Quantum Theory -- Silicon
Аннотация: The quantum confinement effect (QCE) of linear junctions of silicon icosahedral quantum dots (IQD) and pentagonal nanowires (PNW) was studied using DFT and semiempirical AM1 methods. The formation of complex IQD/PNW structures leads to the localization of the HOMO and LUMO on different parts of the system and to a pronounced blue shift of the band gap; the typical QCE with a monotonic decrease of the band gap upon the system size breaks down. A simple one-electron one-dimensional Schrodinger equation model is proposed for the description and explanation of the unconventional quantum confinement behavior of silicon IQD/PNW systems. On the basis of the theoretical models, the experimentally discovered deviations from the typical QCE for nanocrystalline silicon are explained.

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Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia
LV Kirenskii Inst Phys, SB RAS, Krasnoyarsk 660036, Russia
RAS, N M Emanuel Inst Biochem Phys, Moscow 119334, Russia
Kyoto Univ, Fukui Inst Fundamental Chem, Kyoto 6068103, Japan
Natl Inst Adv Ind Sci & Technol, Res Inst Computat Sci, Tsukuba, Ibaraki 3058568, Japan

Доп.точки доступа:
Sorokin, P. B.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Avramov, P. V.; Chernozatonskii, L.A.; Fedorov, D.G.
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Bandpass filter with an ultra wide stopband designed on miniaturized coaxial resonators / B. A. Belyaev [et al.] // J. Commun. Technol. Electron. - 2013. - Vol. 58, No. 2. - P. 110-117DOI 10.1134/S1064226913020022
Аннотация: Characteristics of a new miniaturized coaxial resonator are theoretically investigated. It is shown that the first resonant frequency of the resonator can be significantly lowered relative to the second one and the resonator dimensions can be considerably decreased as compared to those of a traditional dielectric filled quarter wavelength coaxial resonator. Based on the investigated resonator, a fourth order bandpass filter has been designed and fabricated. The filter stopband at a level of no worse than –90 dB extends to the frequency that exceeds the passband center frequency by a factor of 47. Calculated frequency responses are in good agreement with those measured on the fabricated filter prototypes.

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Публикация на русском языке Полосно-пропускающий фильтр со сверхширокой полосой заграждения на миниатюризованных коаксиальных резонаторах. - [S. l. : s. n.]

Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Tomsk 660074, Russia
Siberian State Aerosp Univ, Tomsk 660014, Russia

Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Leksikov, Al. A.; Лексиков, Александр Александрович; Serzhantov, A. M.; Сержантов, Алексей Михайлович; Tyurnev, V. V.; Тюрнев, Владимир Вениаминович; Bal'va, Y. F.; Бальва, Ярослав Федорович; Leksikov, An. A.; Лексиков, Андрей Александрович
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Belyaev, B. A.
Scattering of electromagnetic waves by a metal lattice placed at the interface of two media / B. A. Belyaev, V. V. Tyurnev // J. Commun. Technol. Electron. - 2017. - Vol. 62, Is. 7. - P. 750-758, DOI 10.1134/S1064226917070026. - Cited References: 24 . - ISSN 1064-2269
Кл.слова (ненормированные):
Bandpass filters -- Electromagnetic waves -- Frequency bands -- Frequency response -- Optical multilayers -- Reflection -- Dielectric layer -- Efficient control -- Electromagnetic analysis -- Lattice periods -- Metal lattices -- Optical bandpass filters -- Scattering matrices -- Scattering of electromagnetic waves -- Electromagnetic wave scattering
Аннотация: Simple formulas for determination of components of the scattering matrix of a plane electromagnetic wave incident along the normal onto a thin infinite 2D metal lattice with square windows placed at the interface of two media are derived for the first time. Frequency responses (FRs) of this structure calculated with the use of these formulas agree well with responses obtained by the numerical electromagnetic analysis of a 3D model in the case when the lattice period is less than one-half of the wavelength. The capability of efficient control of the FR of the analyzed structure by means of variation in the width of conductors and the lattice period enables application of this lattice for fabrication of a reflector with prescribed reflectivity. Such reflectors at interfaces of dielectric layers are required, for example, in the design of multilayer sufaces radio transparent in a specified frequency band or optical bandpass filters.

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Публикация на русском языке Беляев, Борис Афанасьевич. Рассеяние электромагнитных волн на металлической решетке, расположенной на границе раздела двух сред [Текст] / Б. А. Беляев, В. В. Тюрнев // Радиотехн. и электроника. - 2017. - Т. 62 № 7. - С. 642-650

Держатели документа:
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Reshetnev Siberian State Aerospace University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Tyurnev, V. V.; Тюрнев, Владимир Вениаминович; Беляев, Борис Афанасьевич
}
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Belyaev, B. A.
Scattering of Electromagnetic Waves on a Subwave Lattice of Square Strip Conductors / B. A. Belyaev, V. Tyurnev, N. V. Volkov // J. Commun. Technol. Electron. - 2019. - Vol. 64, Is. 7. - P. 664-674, DOI 10.1134/S1064226919070039. - Cited References: 24. - The study was supported by the Ministry of Education and Science of the Russian Federation (agreement no. 14.575.21.0279, unique project identifier RFMEFI57517X0142). . - ISSN 1064-2269. - ISSN 1555-6557

РУБ Engineering, Electrical & Electronic + Telecommunications
Рубрики:
MULTILAYER BANDPASS FILTER
   DIELECTRIC LAYERS
   DESIGN
   MESH
Аннотация: Simple formulas are obtained for calculating the scattering matrix of a plane electromagnetic wave incident normally on an infinite 2D lattice formed by square strip conductors and located at the interface of two dielectric media. For the first time, the vortex behavior of the electric field of the lattice was taken into account, which made it possible to repeatedly reduce the computation error at high frequencies. This is confirmed by the close agreement of the amplitude-frequency responses of the structure calculated by the formulas with the characteristics obtained by the numerical electrodynamic analysis of the 3D model when the lattice period is less than half the wavelength.

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Публикация на русском языке Беляев, Борис Афанасьевич. Рассеяние электромагнитных волн на субволновой решетке квадратных полосковых проводников [Текст] / Б. А. Беляев, В. В. Тюрнев, В. Е. Волков // Радиотехн. и электроника. - 2019. - Т. 64 № 7. - С. 666-677

Держатели документа:
Russian Acad Sci, Siberian Branch, KSC Fed Res Ctr, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk 660014, Russia.

Доп.точки доступа:
Tyurnev, V. V.; Тюрнев, Владимир Вениаминович; Volkov, N. V.; Волков, Никита Валентинович; Беляев, Борис Афанасьевич; Ministry of Education and Science of the Russian Federation [14.575.21.0279, RFMEFI57517X0142]
}
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10.

    Belyaev, B. A.
    The investigation of filters with wide stop band, based on electromagnetic crystals of microstrip resonators 2D disposition / B. A. Belyaev, S. A. Khodenkov // 13th Int. Sci.-Technical Conf. on Actual Problems of Electronic Instrum. Engin. (APEIE) : Proceedings : IEEE, 2016. - Vol. 2. - P. 146-152, DOI 10.1109/APEIE.2016.7806434. - Cited References: 4
   Перевод заглавия: Исследование фильтра с широкой полосой заграждения на основе двумерного электромагнитного микрополоскового кристалла
Кл.слова (ненормированные):
Electromagnetic crystal -- Microstrip filter -- Bandpass filters -- Crystal filters -- Electronics industry -- Microwave devices -- Microwave filters -- Resonators -- Electromagnetic crystals -- High frequency HF -- Microstrip band-pass filter -- Microstrip resonator -- Strip conductors -- Wide stop band -- Microstrip filters
Аннотация: Microstrip bandpass filters to the 6th order, based on 2D electromagnetic crystals were studied. Their appliance in structures of irregular resonators with originally convolved and earthed on its base with strip conductors enables the implementation of filters building multiple versions, including of high frequency-selective properties. The good conformance of the calculated characteristics in comparison with the received characteristics on experimentally made model of microwave device is shown. © 2016 IEEE.

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Доп.точки доступа:
Khodenkov, S. A.; Беляев, Борис Афанасьевич; International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering(13 ; 3 -6 October 2016 ; Novosibirsk)
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11.

Characterization of LSMO/C60 spinterface by first-principle calculations / E. A. Kovaleva [et al.] // Org. Electron.: Phys. Mater. Appl. - 2016. - Vol. 37. - P. 55-60, DOI 10.1016/j.orgel.2016.06.021. - Cited References: 40. - This work was supported by the Russian Scientific Fund (Project No. 14-13-00139). The authors would like to thank Institute of Computational Modeling of SB RAS, Krasnoyarsk; Joint Supercomputer Center of RAS, Moscow; Center of Equipment for Joint Use of Siberian Federal University, Krasnoyarsk; ICC of Novosibirsk State University and Siberian Supercomputer Center (SSCC) of SB RAS, Novosibirsk for providing the access to their supercomputers. . - ISSN 1566-1199

РУБ Materials Science, Multidisciplinary + Physics, Applied
Рубрики:
INITIO MOLECULAR-DYNAMICS
   TOTAL-ENERGY CALCULATIONS
   AUGMENTED-WAVE METHOD
   ORGANIC SPIN-VALVES
   BASIS-SET
   SEMICONDUCTORS
   INJECTION
   SPINTRONICS
   TEMPERATURE
   ALGORITHM
Кл.слова (ненормированные):
C60 -- LSMO -- Spinterface -- DFT -- Magnetic ordering
Аннотация: Spinterface between fullerene C60 and La0 7Sr0 3MnO3 (LSMO) was studied by means of density functional theory. Co-existence of many different configurations was shown, and probabilities of their appearance were estimated. Dependence of composite properties on configuration and temperature was also investigated. Key role of transition metal atoms in both binding between composite compartments and magnetic ordering in C60 molecule was discussed. The latter was suggested to be responsible for spin-polarized charge transport while overall magnetic moment of fullerene molecule is relatively small. © 2016 Elsevier B.V.

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Держатели документа:
Siberian Federal University, 79 Svobodny pr., Krasnoyarsk, Russian Federation
L.V. Kirensky Institue of Physics, 50 Akademgorodok, Krasnoyarsk, Russian Federation
Kyungpook National University, 80 Daekharo Bukgu, Daegu, South Korea
Siberian State Technological University, 82 Mira pr., Krasnoyarsk, Russian Federation

Доп.точки доступа:
Kovaleva, E. A.; Kuzubov, A. A.; Кузубов, Александр Александрович; Avramov, P. V.; Аврамов, Павел Вениаминович; Kuklin, A. V.; Куклин, Артем Валентинович; Mikhaleva, N. S.; Krasnov, P. O.; Краснов, Павел Олегович
}
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12.

Coexistence of the electric polarization and conductive current in the bismuth–neodymium ferrite garnet films / S. S. Aplesnin, A. N. Masyugin, M. N. Volochaev, T. Ishibashi // J. Mater. Sci. Mater. Electron. - 2021. - Vol. 32. - P. 3766-3781, DOI 10.1007/s10854-020-05121-9. - Cited References: 42 . - ISSN 0957-4522
Кл.слова (ненормированные):
Bismuth -- Bismuth compounds -- Dielectric materials -- Epitaxial films -- Ferroelectricity -- Gallium compounds -- Garnets -- Hysteresis -- Iron compounds -- Neodymium -- Neodymium compounds -- Piezoelectricity -- Single crystals -- Substrates
Аннотация: The Nd1Bi2Fe5O12/Nd2Bi1Fe4Ga1O12 polycrystalline films on the glass substrate and the Nd0.5Bi2.5Fe5O12 epitaxial films on the single-crystal gadolinium gallium garnet substrate have been investigated by impedance and dielectric spectroscopy. The inductive contribution to the impedance and two relaxation channels related to ferroelectric domains and migration polarization have been established. The magnetocapacitance and magnetoimpedance have been determined. The conductive and polarization currents and the phase difference between them for the films of two types have been determined. The critical temperatures of the polarization disappearance and hysteresis I–V have been found. A model of the polarization caused by the piezoelectric effect and flexoelectric interaction has been proposed. I–V hysteresis is explained by the presence of ferroelectric domains near the interface and is associated with the hysteresis of the electric polarization.

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Держатели документа:
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Department of Materials Science and Technology, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan

Доп.точки доступа:
Aplesnin, S. S.; Masyugin, A. N.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Ishibashi, T.
}
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13.

Conversion of radiation in nonlinear photonic crystals of strontium tetraborate / A. S. Aleksandrovsky [et al.] // CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference = Optics InfoBase Conference Papers. - 2009, DOI 10.1109/CLEOE-EQEC.2009.5196562 . - ISBN 9781424440801 (ISBN). - ISBN 21622701

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Источник статьи
Держатели документа:
L. V. Kirensky Institute of Physics, Akademgorodok, 660036, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Slabko, V.V.; Zaitsev, A. I.; Зайцев, Александр Иванович; Zamkov, A. V.; Замков, Анатолий Васильевич; European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference(2009 ; Jun. ; 14-19 ; Munich)
}
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14.

Dielectric properties of a mixed-valence Pb3Mn7O15 manganese oxide / N. V. Volkov [et al.] // J. Phys.: Condens. Matter. - 2010. - Vol. 22, Is. 37. - Ст. 375901, DOI 10.1088/0953-8984/22/37/375901. - Cited References: 14. - This study was supported by the Russian Foundation for Basic Research 'Siberia', project No. 09-02-98003, and the Siberian Branch of the Russian Academy of Sciences, integration project No. 101. . - ISSN 0953-8984

РУБ Physics, Condensed Matter

Кл.слова (ненормированные):
cation -- lead -- manganese derivative -- oxide -- article -- chemical model -- chemistry -- crystallization -- electric conductivity -- electronics -- methodology -- temperature -- Cations -- Crystallization -- Electric Conductivity -- Electronics -- Lead -- Manganese Compounds -- Models, Chemical -- Oxides -- Temperature -- AC electric field -- Analysis of resistivity -- Carrier hopping -- Charge ordering -- Complex dielectric constant -- Crystal site -- Debye models -- Dielectric constants -- Dielectric spectra -- Frequency windows -- Lattice sites -- Low frequency -- Manganese ions -- Mixed valence -- Mixed valence state -- Relaxation behaviors -- Temperature range -- Electric fields -- Manganese -- Manganese oxide -- Permittivity -- Single crystals -- Crystal symmetry
Аннотация: We investigated the low-frequency dielectric properties of a Pb3Mn7O15 single crystal with manganese ions in the mixed-valence state (Mn3+/Mn4+). Dielectric relaxation was found in the frequency window from 20 to 100 kHz in the temperature range 110-180 K. The dielectric spectra of the crystal were analyzed using a Debye model. Estimations made within the model and analysis of resistivity data suggest that the relaxation behavior of the dielectric constant is related to polaronic charge carrier hopping. Around 250 K, charge ordering occurs in the crystal when the Mn3+ and Mn4+ ions are arranged in a specific order among the crystal sites. With a decrease in temperature, an ac electric field can induce a charge hop between the equivalent lattice sites available, related to crystal symmetry. This hopping is equivalent to the reorientation of an electric dipole that yields Debye-type behavior of the complex dielectric constant. The observed anisotropy in the behavior of the dielectric properties and resistivity can be attributed to a pronounced two-dimensional character of the crystal structure.

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Держатели документа:
[Volkov, N. V.
Eremin, E. V.
Sablina, K. A.
Sapronova, N. V.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН
L V Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk, Russia.
L V Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Volkov, N. V.; Волков, Никита Валентинович; Eremin, E. V.; Еремин, Евгений Владимирович; Sablina, K. A.; Саблина, Клара Александровна; Sapronova, N. V.
}
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15.

Effect of the electrical inhomogeneity on the magnetocapacitance sign change in the HoxMn1−xS semiconductors upon temperature and frequency variation / S. S. Aplesnin, M. N. Sitnikov, A. M. Kharkov, H. Abdelbaki // J. Mater. Sci.: Mater. Electron. - 2023. - Vol. 34, Is. 4. - Ст. 284, DOI 10.1007/s10854-022-09731-3. - Cited References: 32. - Council on grants of the President of the Russian Federation, MK-620.2021.1.2, Maksim Sitnikov . - ISSN 1573-482X
Аннотация: The dielectric properties of the HoxMn1−xS (x ≤ 0.1) semiconductors in the frequency range of 100 ˂ ω ˂ 106 Hz at temperatures of 80−550 K have been studied. The temperature crossover from the Debye behavior of the permittivity to the resonance behavior has been found at low holmium concentrations in the compounds. The frequency of the crossover from the migration to dipole orientation polarization with the minimum dielectric loss has been determined. The positive and negative magnetocapacitances for two concentrations of holmium ions have been found. The temperature and frequency ranges of the magnetocapacitance sign change have been established and this phenomenon has been explained using the model of the transition from electrically inhomogeneous to homogeneous states.

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Держатели документа:
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, Russia
Federal Research Center KSC SB RAS, Kirensky Institute of Physics, Krasnoyarsk, Russia

Доп.точки доступа:
Aplesnin, S. S.; Аплеснин, Сергей Степанович; Sitnikov, M. N.; Kharkov, A. M.; Abdelbaki, H.
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16.

    Euro-asian symposium "Trends in magnetism" (EASTMAG-2004) : Abstract book / Рос. акад. наук, Сиб. отд-ние, Ин-т физики им. Л.В. Киренского, Краснояр. гос. ун-т, Краснояр. гос. технич. ун-т, Урал. отд-ние , Ин-т физики металлов. Euro-asian symp. "Trends in magnetism" ; предс. орг. комит. К. С. Александров ; зам. предс. С. Г. Овчинников ; чл. орг. комит. В. А. Игнатченко [и др.]. - Krasnoyarsk : [б. и.], 2004. - 418 с. - Bibliogr. at the end of the articles - Auth. ind. - 350 экз. - Б. ц.
Перевод заглавия: Евро-азиатский симпозиум "Прогресс в магнетизме"
Приложение:
Program of Euro-asian symposium "Trends in magnetism" (EASTMAG-2004). - Krasnoyarsk : Kirensky Instit. Phys. SB RAS, 2004. - 83
    Содержание:
Fundamental magnetic properties
Transport phenomena and spin electronics
Magnetism and strongly correleted electron systems
Spin glasses, disordered magnetic systems
Dynamics of spin systems and magnetic resonances
Magnetooptics and X-ray magnetooptics
Magnetic mechanism of the superconductivity
Domain structure and magnetization processes
Thin magnetic films and multilayers
Magnetic particles and nanocrystalline materials
Molecular magnetism
Magnetic storage/memory and applications
   Перевод заглавия: Евро-азиатский симпозиум "Прогресс в магнетизме"

Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Александров, Кирилл Сергеевич \предс. орг. ком.\; Aleksandrov, K. S.; Овчинников, Сергей Геннадьевич \зам. предс.\; Ovchinnikov, S. G.; Игнатченко, Вальтер Алексеевич \чл. орг. ком.\; Ignatchenko, V. A.; Сапожников, В. \чл. орг. ком.\; Патрин, Геннадий Семёнович \чл. орг. ком.\; Patrin, G. S.; Вальков, Валерий Владимирович \чл. орг. ком.\; Val'kov, V. V.; Волков, Никита Валентинович \чл. орг. ком.\; Volkov, N. V.; Казак, Наталья Валерьевна \чл. орг. ком.\; Kazak, N. V.; Российская академия наук; Сибирское отделение РАН; Институт физики им. Л.В. Киренского Сибирского отделения РАН; Красноярский государственный университет; Красноярский государственный технический университет; Институт физики металлов Уральского отделения РАН; Научный совет по физике конденсированных сред РАН; Научный совет РАН по физике низких температур; Красноярский научный центр Сибирского отделения РАН; Euro-asian symposium "Trends in magnetism" (2 ; 2004 ; Aug. 24-27 ; Krasnoyarsk); "Trends in magnetism", Euro-Asian Symposium (2 ; 2004 ; Aug. 24-27 ; Krasnoyarsk)
Свободных экз. нет}
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17.

    Exchange bias in graphitic C/Co composites / H. -S. Hsu [et al.] // Carbon. - 2017. - Vol. 114. - P. 642-648, DOI 10.1016/j.carbon.2016.12.060. - Cited References: 54. - The authors would like to thank the Ministry of Science and Technology of the Republic of China, Taiwan, for financially supporting this research under Contract No. MOST 104-2112-M-153 -002 -MY3 (Hua-Shu Hsu), MOST 103-2112-M-213-004-MY3 (Hong-Ji Lin), and MOST 104-2112-M-390-001 (Shih-Jye Sun). We are thankful also to the President of Russia Program of support the leading scientific schools, grant NSh-7559,2016.2 (SGO). . - ISSN 0008-6223
   Перевод заглавия: Обменное смещение в графитовом композитном материале C/Co
Кл.слова (ненормированные):
Carbides -- Carbon -- Dichroism -- High resolution transmission electron microscopy -- Magnetoelectronics -- Transmission electron microscopy -- X ray absorption -- Electronics production -- Exchange bias effects -- Experimental evidence -- Magnetic interactions -- Potential materials -- Spintronics application -- Theoretical modeling -- X-ray magnetic circular dichroism -- Magnetic materials
Аннотация: The exchange bias (EB) effect, which is the shift of the hysteresis loop of a ferromagnet in direct contact with an antiferromagnet, is highly advantageous for the development of spintronics applications. Carbon (C) has been considered as a potential material in next generation electronics production as well as spintronics devices beyond silicon. Here we show experimental evidence for an EB in C/Co composites. The significant EB needs thermal annealing to occur. X-ray absorption spectra and transmission electron microscopy data of these samples reveal that Co carbides in as grown samples decompose and form graphitic C/Co interfaces after annealing. Using x-ray magnetic circular dichroism we have detected the C spins that are responsible for the EB. These results inspire a theoretical model to investigate the magnetic interactions in graphitic C/Co interfaces and interpret the observed results. © 2016 Elsevier Ltd

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Держатели документа:
Department of Applied Physics, National Pingtung University, 4-18, Minsheng Road, Pingtung, Taiwan
National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu, Taiwan
Department of Applied Physics, National University of Kaohsiung, 700, Kaohsiung University Road, Kaohsiung, Taiwan
Kirensky Institute of Physics SB RAS, Akademgorodok 50, Bld. 38, Krasnoyarsk, Russian Federation
Siberian Federal University, 79 Svobodny pr., Krasnoyarsk, Russian Federation

Доп.точки доступа:
Hsu, Hua-Shu; Chang, Y.-Y.; Chin, Y.-Y.; Lin, H.-J.; Chen, C.-T.; Sun, S.-J.; Zharkov, S. M.; Жарков, Сергей Михайлович; Lin, C.-R.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич
}
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18.

Gavrichkov, V. A.
Doping dependent electronic structure of cuprates and the effective low energy Hamiltonian for the magnetic pairing / V. A. Gavrichkov, M. M. Korshunov, S. G. Ovchinnikov // Int. J. Mod. Phys. B. - 2005. - Vol. 19, Is. 1-3. - P. 247-249, DOI 10.1142/S0217979205028335. - Cited References: 14 . - ISSN 0217-9792

РУБ Physics, Applied + Physics, Condensed Matter + Physics, Mathematical
Рубрики:
COPPER OXIDES
SYMMETRY
MODEL
Кл.слова (ненормированные):
electronic structure -- strong electron correlations -- magnetic mechanism of pairing -- Electronic structure -- Magnetic mechanism of pairing -- Strong electron correlations -- copper derivative -- calculation -- chemical reaction -- chemical structure -- conference paper -- correlation analysis -- electron -- electronics -- energy -- hybridization -- intermethod comparison -- magnetism -- mathematical analysis -- mathematical model
Аннотация: The properties of the normal and superconducting phases of p- and n-type cuprates are investigated in the appropriate low-energy models in the approximation beyond Hubbard I considering spin fluctuations. Calculated chemical potential dependence on doping, Fermi surface and T,(x) phase diagram for n-type cuprates are in remarkably good agreement with the experimental ones. Comparison of the singlet-triplet t-J model with simple t-J model shows that the spin-exciton mechanism originated from singlet-triplet hybridization leads to small contribution to the T-c(x) - optimal doping value becomes slightly lower and the maximum value of T-c become slightly higher.

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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
L. V. Kirensky Inst. Phys. S., Russian Academy of Science, Akademgorodok, 660036, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Korshunov, M. M.; Коршунов, Максим Михайлович; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Гавричков, Владимир Александрович; International Conference on New Theories, Discoveries and Applications of Superconductors and Related Materials(5 ; 2004 ; June ; 11-16 ; Chongqing, China)
}
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19.

    Govorun, I. V.
    New method for observation ferromagnetic resonance spectra / I. V. Govorun, A. A. Leksikov // 14th International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering, APEIE 2018 : Proceedings. - 2018. - P. 41-44, DOI 10.1109/APEIE.2018.8545359. - Cited References: 8 . - ISBN 9781538670545
Рубрики:
Magnetomechanical effects
   Magnetic films
   Magnetic fields
Кл.слова (ненормированные):
Microstrip resonator -- coupling coefficient -- ferromagnetic resonance -- damping pole
Аннотация: A new method for observation of ferromagnetic resonance spectra is demonstrated. Its operation based on the registering a damping pole in the frequency response of two-resonator microstrip structure containing a sample under investigation. A damping pole arises due to mutual compensation of capacitive (electric) and inductive (magnetic) interactions between the resonators and this compensation get broken in the ferromagnetic resonance.

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Держатели документа:
Krasnoyarsk Scientific Center, SB, RAS, Krasnoyarsk, Russian Federation
L. V. Kirensky Institute of Physics, SB, RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Leksikov, A. A.; Лексиков, Александр Александрович; International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering(14 ; 2 - 6 October 2018 ; Novosibirsk, Russia); Institute of Electrical and Electronics Engineers
}
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20.

Hysteresis loops of MgB2 + Co composite tapes / E. Altin [et al.] // J. Mater. Sci.: Mater. Electron. - 2013. - Vol. 24, Is. 4. - P. 1341 - 1347DOI 10.1007/s10854-012-0931-2
Аннотация: The (MgB2)1-xCox composite tapes fabricated by the ex situ PIT method were investigated. The structural and magnetic properties were characterized. Only MgB2 and Co phases were observed in the composites while x B 0.2. A superconducting transition temperature was stable for these samples. Enhancement of the critical current density is found for x = 0.1.
Fen Edebiyat Fakultesi Fizik Bolumu, Superiletkenlik Arastirma Grubu, Inonu Universitesi, 44280 Malatya, Turkey

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Держатели документа:
Bilimsel ve Teknolojik Aras¸tırma Merkezi, Inonu Universitesi, 44280 Malatya, Turkey

Доп.точки доступа:
Altin, E.; Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Altin, S.; Yakinci, M.E.
}
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