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The magnetoelectric MEE-effect in the SmFe3(BO3)4 multiferroic in dc and ac electric fields / A. L. Freydman [et al.] // J. Appl. Phys. - 2018. - Vol. 124, Is. 13. - Ст. 134101, DOI 10.1063/1.5044598. - Cited References:22. - This work was supported by the Russian Foundation for Basic Research, projects no. 17-32-50043_mol_nr and no. 18-02-00696_a. . - ISSN 0021-8979. - ISSN 1089-7550

РУБ Physics, Applied
Рубрики:
CRYSTAL
Аннотация: The inverse magnetoelectric MEE-effect in the SmFe3(BO3)4 single-crystal sample in an applied electric field has been studied. The electric field E consists of two components: a constant one, e0, and a variable one, e × cos(ωt). The investigated compound evokes great interest due to the existence of both linear and quadratic contributions to the magnetoelectric effect. According to theoretical analysis, the effective susceptibility of the first harmonic of magnetic moment oscillations depends on the dc electric field component e0. Indeed, according to the measurement data, the dc field e0 significantly affects the MEE-effect first-harmonic amplitude: depending on the e0 sign, these oscillations can be either amplified or suppressed. This offers an opportunity for controlling the magnetic moment oscillation amplitude at the applied electric field frequency, including the signal modulation, which is promising for application. In the applied dc field e0, a slight change in the susceptibility of the MEE-effect term quadratic to the electric field was detected. The mathematical apparatus used correctly describes the qualitative dependence of the MEE-effect amplitude on the dc field e0, while the quantity appears to be approximately twofold overestimated.

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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Inst Spect, Troitsk 108840, Russia.
Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Oblast, Russia.

Доп.точки доступа:
Freydman, A. L.; Фрейдман, Александр Леонидович; Erofeev, D. A.; Temerov, V. L.; Темеров, Владислав Леонидович; Gudim, I. A.; Гудим, Ирина Анатольевна; Russian Foundation for Basic Research [17-32-50043_mol_nr, 18-02-00696_a]
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Effect of Sequential Heat Impacts on the Formation of a Stable State of the xLPM-(1-x)PT Multiferroic Composites / E. A. Mikhaleva [et al.] // Phys. Solid State. - 2018. - Vol. 60, Is. 12. - P. 2524-2531, DOI 10.1134/S1063783419010189. - Cited References: 15. - This study was supported by the Russian Foundation for Basic Research, the Government of the Krasnoyarsk Territory, and the Krasnoyarsk Territorial Foundation for Support of the Scientific and R&D Activity, project no. 17-42-240076 "Complex Approach to Searching and Development of Promising Solid-State Ferroic Cooling Agents Based on the Single- and Multicaloric Effects." . - ISSN 1063-7834. - ISSN 1090-6460

РУБ Physics, Condensed Matter
Рубрики:
PbTiO3
Аннотация: The effect of thermal cycling and sintering temperature on the chemical and thermodynamic stability of the bulk multiferroic xLa0.7Pb0.3MnO3–(1 – x)PbTiO3 quasi-ceramic and ceramic composites has been experimentally investigated. It is shown that the limiting temperature of the long-term sample firing should not exceed 1070 K. It has been found that sintering at this temperature and/or short-term exposure of the samples at higher temperatures (up to 1220 K) significantly increase the sample compactness, stabilize the thermal expansion, and enhance the quality of the composites. It has been established that the component grain integrity is violated by shrinkage of the samples and a sharp change in their volume during the phase transition of a ferroelectric component.

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Публикация на русском языке Влияние последовательных термических воздействий на формирование стабильного состояния мультиферроидных композитов xLPM-(1-x)PT [Текст] / Е. А. Михалева [и др.] // Физ. тверд. тела. - 2019. - Т. 61 Вып. 1. - С. 87-94

Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Mikhaleva, E. A.; Михалева, Екатерина Андреевна; Flerov, I. N.; Флёров, Игорь Николаевич; Gorev, M. V.; Горев, Михаил Васильевич; Shabanov, A. V.; Шабанов, Александр Васильевич; Russian Foundation for Basic Research [17-42-240076]; Government of the Krasnoyarsk Territory [17-42-240076]; Krasnoyarsk Territorial Foundation [17-42-240076]
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    Synthesis and magnetic properties of crystals Bi2BaFe4O10 / M. M. Mataev [et al.] // J. Sib. Fed. Univ. Math. Phys. - 2018. - Vol. 11, Is. 4. - P. 411-415 ; Журн. СФУ. Сер. "Математика и физика", DOI 10.17516/1997-1397-2018-11-4-411-415. - Cited References: 6 . - ISSN 1997-1397. - ISSN 2313-6022
   Перевод заглавия: Синтез и магнитные свойства кристаллов Bi2BaFe4O10

РУБ Physics

Кл.слова (ненормированные):
multiferroic -- solid-phase synthesis -- bismuth -- magnetic hysteresis -- мультиферроик -- твердофазный синтез -- висмут -- магнитный гистерезис
Аннотация: The paper presents the results of an experimental study of the first synthesized compound in the system Bi2O3-BaO-Fe2O3. It was found that the compound has cubic symmetry, the lattice parameters was determined. Electron microscopy measurements reveal that, in general, elemental composition of different parts of the samples corresponds to Bi2BaFe4O10 formula. According to magnetic measurements, the compound has a magnetic order with the magnetic ordering temperature TC = 700 K.
В работе представлены результаты экспериментального исследования впервые синтезированного соединения в системе Bi2O3-BaO-Fe2O3. Установлено, что полученное соединение имеет кубическую симметрию, определены параметры решетки. Методом электронно-микроскопических измерений получено, что в целом элементный состав, измеренный в разных частях образцов, соответствует формуле Bi2BaFe4O10. Из магнитных измерений следует, что соединение имеет магнитный порядок с температурой магнитного упорядочения TC = 700 K.

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Держатели документа:
Kazakh State Womens Teacher Training Univ, Aiteke Bi 99, Alma Ata 050000, Kazakhstan.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Svobodny 79, Krasnoyarsk 660041, Russia.
Kirensky Inst Phys SB RAS, Akademgorodok 50-38, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Mataev, Mukhametkali M.; Patrin, G. S.; Патрин, Геннадий Семёнович; Abdraymova, M. R.; Tursinova, Zhanar I.; Yurkin, G. Yu.; Юркин, Глеб Юрьевич

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Shinkorenko, A. S.
Electronic structure, magnetic, optical and polarization properties of the multiferroic CaMnTi2O6 by first principles / A. S. Shinkorenko, V. I. Zinenko, M. S. Pavlovski // Joint 14th Rus./CIS/Baltic/Japan Symp. on Ferroelectricity (RCBJSF)/ Young sci. school on the spect. studies of critical dynamics at struct. phase trans. : Abstract book / org. comm. A. N. Vtyurin ; progr. comm. I. N. Flerov. - 2018. - P. 148. - Cited References: . - ISBN 978-5-9651-1144-2

Материалы конференции

Доп.точки доступа:
Vtyurin, A. N. \org. comm.\; Втюрин, Александр Николаевич; Flerov, I. N. \progr. comm.\; Флёров, Игорь Николаевич; Zinenko, V. I.; Зиненко, Виктор Иванович; Pavlovskii, M. S.; Павловский, Максим Сергеевич; Шинкоренко, Алексей Сергеевич; Joint Russia/CIS/Baltic/Japan Symposium on Ferroelectricity(14 ; May 14-18, 2018 ; St. Perersburg); Young scientists school on the spectroscopic(May 14-18, 2018 ; St. Perersburg); Физико-технический институт им. А.Ф. Иоффе РАН; Санкт-Петербургский политехнический университет им. Петра Великого
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    Probing magnetic sublattices in multiferroic Ho0.5Nd0.5Fe3(BO3)4 single crystal using X-ray magnetic circular dichroism / M. S. Platunov [et al.] // ArXiv. - 2018. - Ст. 1804.07057. - Cited References: 28. - The study was supported in part by the grants of the Russian Foundation for Basic Research (project nos. 16-32-60049, 17-02-00826) and the Foundation for Assistance to Small Innovative Enterprises (FASIE, UMNIK program). The authors thank the BM01A/ID28/ID12 beamlines staffs for help during the experiment and also gratefully acknowledge the beamtime provision (proposal HC-1804) by the ESRF.
Рубрики:
Antiferromagnetics
   Magnetic anisotropy
   Magnetoelectric effects, multiferroics
Аннотация: Using element-specific X-ray magnetic circular dichroism (XMCD) technique we have studied different magnetic sublattices in a multiferroic Ho0.5Nd0.5Fe3(BO3)4 single crystal. The XMCD measurements at the L2,3-edges of Ho and Nd, and at the Fe \emph{K}-edge have been performed at T=2K under a magnetic field up to 17 T applied along the trigonal c-axis as well as in the basal ab-plane. All three magnetic sublattices are shown to undergo a spin-reorientation transition under magnetic field applied along the c-axis. On the contrary, when magnetic field is applied in the ab-plane only the holmium atoms exhibit a magnetization jump. Thus, the element-specific magnetization curves revealed the Ho sublattice to be much stronger coupled to the Fe one than the Nd sublattice. The results demonstrate that the Ho3+ subsystem plays even more dominant role in magnetic behavior of Ho0.5Nd0.5Fe3(BO3)4 crystal than in pure HoFe3(BO3)4 crystal.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok 50, bld. 38, 660036 Krasnoyarsk, Russia
ESRF-The European Synchrotron, 71 Avenue des Martyrs CS40220, F-38043 Grenoble Cedex 9, France
P.N. Lebedev Physical Institute of RAS, 119991 Moscow, Russia

Доп.точки доступа:
Platunov, M. S.; Платунов, Михаил Сергеевич; Kazak, N. V.; Казак, Наталья Валерьевна; Dudnikov, V. A.; Дудников, Вячеслав Анатольевич; Wilhelm, F.; Hen, A.; Diadkin, V.; Dovgaliuk, I.; Bosak, A.; Temerov, V. L.; Темеров, Владислав Леонидович; Gudim, I. A.; Гудим, Ирина Анатольевна; Knyazev, Yu. V.; Князев, Юрий Владимирович; Gavrilkin, S. Yu.; Rogalev, A.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич
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Dielectric and Raman spectroscopy measurements across structural phase transition in multiferroic HoFe3(BO3)4 single crystal / A. Tripathy [et al.] // AIP Conf. Proc. - 2019. - Vol. 2162: International Conference on Advanced Materials, ICAM 2019. - Ст. 020062, DOI 10.1063/1.5130272. - Cited References: 10. - DKS acknowledges support from the DST, New Delhi, India through the grant no INI/RUS/RFBR/P-269 (Indo Russian project). K.G. thanks, Council of Scientific and Industrial Research, New Delhi, India, for support in the form of SRF.
Аннотация: We report on findings in the HoFe3(BO3)4 single crystal across structural phase transition by the dielectric and Raman spectroscopic measurements. In most of the compounds of RFe3(BO3)4 (R=La-Lu) family low temperature P3121 structure is introduced through structural phase transition (from space group R32). Temperature dependent dielectric measurements on the HoFe3(BO3)4 crystal depicts a step like feature at the structural phase transition at ?366 K. The Raman spectroscopy study also confirms the structural transition around this temperature. A clear signature of structural transition is reflected in the Raman spectra, mainly in the frequency range (200-400 cm-1). Appearance of new Raman modes below the transition temperature also indicates that the transition is from a high symmetry phase to a low symmetry phase.

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UGC-DAE Consortium for Scientific Research, Indore, 452001, India
Department of Physics, Aligarh Muslim University, Aligarh, 202002, India
L. V. Kirensky Institute of Physics, Siberian Branch of Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Tripathy, A.; Gautam, K.; Dey, K.; Ahad, A.; Gudim, I. A.; Гудим, Ирина Анатольевна; Sathe, V. G.; Shukla, D. K.; International Conference on Advanced Materials(12-14 June 2019 ; Kannur, India)
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References regulating the BiMnxFe1-xO3 film conductivity upon cooling in magnetic and electric fields / S. S. Aplesnin [et al.] // Mater. Res. Express. - 2019. - Vol. 6, Is. 11. - Ст. 116125, DOI 10.1088/2053-1591/ab4ec7. - Cited References: 19. - This study was supported by the Russian Foundation for Basic Research project no. 18-52-00009 bel_a, No. 18-32-00079 mol_a. This work is part of the research program the state order No. 3.5743.2017/6.7. . - ISSN 2053-1591

РУБ Materials Science, Multidisciplinary
Рубрики:
DOMAINS
Кл.слова (ненормированные):
multiferroic -- curie temperature -- conductivity -- cooling in magnetic field
Аннотация: The magnetic and electrical properties of the BiFe1-xMnxO3 (x = 0.05, 0.15) films in the temperature range of 80–600 K have been investigated. The Curie temperature (Tc) of the films has been determined. A decrease in the conductivity of the films with x = 0.05 upon cooling in an electric field from the temperatures T ˂ Tc has been found. This effect has been described in the model of decreasing quantum well (domain wall) density and the tunneling coefficient drop. A decrease in the conductivity of the BiFe1-xMnxO3 film by more than an order of magnitude upon cooling from high temperatures in a magnetic field has been established. The experimental data are interpreted using the magnetic-field-induced magnetic structure variation and exchange splitting of the impurity subband.

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Держатели документа:
RAS, Kirensky Inst Phys, Fed Res Ctr KSC SB, Krasnoyarsk 660036, Russia.
Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk 660014, Russia.
Sci Pract Mat Res Ctr NAS, Minsk 220072, BELARUS.

Доп.точки доступа:
Aplesnin, S. S.; Аплеснин, Сергей Степанович; Masyugin, A. N.; Kretinin, V. V.; Yanushkevich, K. I.; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-52-00009 bel_a, 18-32-00079 mol_a, 3.5743.2017/6.7]
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Structural features associated with multiferroic behavior in the RX3(BO3)4 system / H. Zhang [et al.] // J. Phys. Condens. Matter. - 2019. - Vol. 31, Is. 50. - Ст. 505704, DOI 10.1088/1361-648X/ab415f. - Cited References: 38 . - ISSN 0953-8984
Кл.слова (ненормированные):
multiferroic -- magnetoelectric -- crystal structure -- ferroelectric -- spin-lattice coupling
Аннотация: The magnetoelectric effect in the RX3(BO3)4 system (R = Ho, Eu, Sm, Nd, Gd; X = Fe, Al) varies significantly with the cation R despite very similar structural arrangements. Our structural studies reveal a symmetry reducing tilting of the BO3 planes and of the FeO6 polyhedra in the systems exhibiting low magnetic field induced electric polarization. Neutron scattering measurements reveal a lack of magnetic ordering indicating the primary importance of the atomic structure in the multiferroic behavior of this system.

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Держатели документа:
Department of Physics, New Jersey Institute of Technology, Newark, NJ 071022, United States
National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY 11973, United States
L.V. Kirensky Institute of Physics, Krasnoyarsk, Russian Federation
Center for Advanced Radiation Sources, University of Chicago, Argonne, Chicago, IL 60439, United States
Laboratoire de Physique et d'Etude des Materiaux (LPEM), ESPCI Paris, PSL University, CNRS, Paris, 75005, France
Sorbonne Universite, CNRS, LPEM, Paris, 75005, France
Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States

Доп.точки доступа:
Zhang, H.; Liu, S.; Nelson, C. S.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Chen, Y. -S.; Wang, S. G.; Lobo, R. P.S.M.; Page, K.; Matsuda, M.; Pajerowski, D. M.; Williams, T. J.; Tyson, T. A.
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Complex magnetic order in the Nd(Tb)Fe3(BO3)4 multiferroic revealed by single-crystal neutron diffraction / I. V. Golosovsky [et al.] // Phys. Rev. B. - 2019. - Vol. 99, Is. 13. - Ст. 134439, DOI 10.1103/PhysRevB.99.134439. - Cited References: 33. - This work was supported by the Russian Grant No. RFBR 16-02-00058. A.A.M. acknowledges the financial support from the Russian Science Foundation (16-12-10531). . - ISSN 2469-9950
Кл.слова (ненормированные):
Antiferromagnetism -- Binary alloys -- Crystal structure -- Crystallography -- Magnetic structure -- Neodymium compounds -- Neutron diffraction -- Single crystals -- Terbium compounds
Аннотация: Magnetic structure of the substituted multiferroics-ferroborates Nd0.9Tb0.1Fe3(BO3)4 and Nd0.8Tb0.2Fe3(BO3)4 were determined in the framework of a self-consistent refinement of the single crystal neutron diffraction data. The small substitution of Nd for Tb leads to the reorientation of the main antiferromagnetic vector L from the basal plane towards the hexagonal axis. The reorientation takes place via an angular structure for which L does not coincide with the principal crystallographic directions and evolves with temperature due to competing magnetic anisotropies of Fe, Nd, and Tb subsystems. Our refinement at 2 K reveals the existence of distortions in the collinear antiferromagnetic Fe spin arrangement suggested before in other ferroborates. Therefore, besides the main antiferromagnetic vector L, the magnetic structure involves additional fine symmetrized combinations of spin components allowed by symmetry. They coexist with certain L components and could originate from the antisymmetric Dzyaloshinsky-Moriya Fe-Fe exchange interactions. At higher temperatures, the magnetic structure is described by the simple collinear model, where the L vector is deviated from the hexagonal plane. © 2019 American Physical Society.

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Держатели документа:
National Research Center, Kurchatov Institute, B.P. Konstantinov Petersburg Nuclear Physics Institute, Gatchina, 188300, Russian Federation
Prokhorov General Physics Institute, RAS, Moscow, 119991, Russian Federation
Universite Grenoble Alpes, CEA, INAC-MEM, Grenoble, 38000, France
Institucio Catalana de Recerca i Estudis Avancats, Barcelona, E-08010, Spain
Fisika Aplikatua II, Zientzia Eta Teknologia Fakultatea, Universidad Del Pais Vasco, UPV/EHU, Bilbao, 48940, Spain
Kirenskii Institute of Physics, Siberian Division of RAS, Krasnoyarsk, 660038, Russian Federation

Доп.точки доступа:
Golosovsky, I. V.; Vasilev, A. I.; Mukhin, A. A.; Ressouche, E.; Skumryev, V.; Urcelay-Olabarria, I.; Gudim, I. A.; Гудим, Ирина Анатольевна; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич
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10.

IR-range photoinduced diode effect in the manganese-substituted bismuth ferrite films / S. S. Aplesnin [et al.] // Semicond. Sci. Technol. - 2019. - Vol. 34, Is. 9. - Ст. 095007, DOI 10.1088/1361-6641/ab3160. - Cited References: 45. - The reported study was funded by RFBR according to the research project No 18-52-00009 Bel_ a; No 18-32-00079 mol_ a and Belarusian Foundation project No F18R-084. The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science No 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 No 3.5743.2017/6.7. . - ISSN 0268-1242. - ISSN 1361-6641

РУБ Engineering, Electrical & Electronic + Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
POOLE-FRENKEL CONDUCTION
BIFEO3 FILMS
LIGHT
Кл.слова (ненормированные):
multiferroic -- films -- diode effect -- polarization -- I-V characteristics -- optical absorption
Аннотация: The photoinduced diode effect has been found in BiMnxFe1-xO3 (0 < X < 0.15) films in the near-infrared and violet spectral ranges in a wide temperature interval. The dependences of the diode effect on temperature, wavelength, and illumination power have been established. The mechanism of the ferroelectric diode has been determined using its I-V characteristics at different illumination powers, optical spectra, far-infrared absorption spectra, and electric polarization hysteresis. The interplay between the photodiode effect and conductivity mechanism has been elucidated. The model of strong Coulomb potential fluctuations and quantum well asymmetry caused by the electric polarization in the film and difference between the times of carrier thermalization and recombination of electrons and holes is proposed.
В пленках феррита висмута BiMnxFe1-xO3 (0< x < 0.15) обнаружен фотоиндуцированный диодный эффект в ближней инфракрасной и фиолетовой областях спектра в широкой области температур. Определена зависимость диодного эффекта от температуры, длины волны, мощности освещения. Механизм ферроэлектрического диода определяется из вольт-амперных характеристик при разных интенсивностях освещения, оптических спектров и спектров поглощения в дальней ИК области, гистерезиса электрической поляризации. Устанавливается связь фотодиодного эффекта с механизмом проводимости. Предложена модель сильных флуктуаций кулоновского потенциала, асимметрия квантовых ям в результате наличия электрической поляризации в пленке и отличие времен термолизации носителей тока и рекомбинации электронов и дырок.

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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk, Russia.
Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.
Sci Pract Mat Res Ctr NAS Belarus, Minsk, BELARUS.

Доп.точки доступа:
Aplesnin, S. S.; Аплеснин, Сергей Степанович; Kretinin, V. V.; Masyugin, A. N.; Romanova, O. B.; Романова, Оксана Борисовна; Sitnikov, M. N.; Begisheva, O. B.; Galyas, A., I; Demidenko, O. F.; Yanushkevich, K., I; RFBR [18-52-00009 Bel_ a, 18-32-00079 mol_ a]; Belarusian Foundation [F18R-084]; Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science [18-42-240001 r_ a]; [3.5743.2017/6.7]
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