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Magnetization processes in two-dimensional arrays of iron nanowires / D. L. Zagorskiy, S. V. Semenov, S. V. Komogortsev [et al.] // J. Magn. Magn. Mater. - 2024. - Vol. 595. - Ст. 171573, DOI 10.1016/j.jmmm.2023.171573. - Cited References: 48. - This work was supported by Russian Scientific Foundation (RSF) Grant 22-22-00983 . - ISSN 0304-8853. - ISSN 1873-4766
Кл.слова (ненормированные):
Nanowires -- Magnetic measurements -- Micromagnetic modeling
Аннотация: Arrays of iron nanowires (NWs) obtained by template-assisted electrodeposition constitute a promising composite material characterized by a combination of high magnetization in the filler and perpendicular magnetic anisotropy. The properties of these composites arise from the interplay between the behavior of individual NWs and their magnetostatic interactions. In this study, we investigated NW arrays with identical wire diameters but varying spatial arrangements. Major hysteresis loops were studied under various field directions relative to the NW axis. Key parameters such as the slope of the magnetization curve, saturation magnetization, and coercive force were quantified. Additionally, FORC (First Order Reversal Curve) measurements were conducted with the field oriented longitudinally with respect to the NW, offering insights into the inhomogeneity of the demagnetizing field influenced by the NW array's configuration. In the sample with the highest NW density, we observed isotropic behavior of the effective demagnetizing field, and we proposed an explanation for this phenomenon using the effective media approach. Micromagnetic simulations revealed that the magnetic behavior of individual NWs with a 100 nm diameter can be described as an interchange between volumes characterized by vortex and uniform magnetization patterns. Calculations of the demagnetizing field using the effective medium model demonstrated excellent agreement with experimental data across arrays featuring different NW densities. Remarkably, the quantitative consistency of coercive field values obtained from micromagnetic simulations and experimental measurements in the range of angles from 0° to 45° for the studied samples underscores the structural homogeneity of the obtained NWs.

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Держатели документа:
FSRC “Crystallography and Photonics”, Russian Academy of Sciences, Moscow, Russia
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
National University of Science and Technology MISiS, Moscow 119049, Russia
Immanuel Kant Baltic Federal University, Kaliningrad 236001, Russia

Доп.точки доступа:
Zagorskiy, D.L.; Semenov, S. V.; Семёнов, Сергей Васильевич; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Balaev, D. A.; Балаев, Дмитрий Александрович; Doludenko, I.M.; Panina, L.V.
}
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Magnetization curves of 2D iron nanowires array / D. L. Zagorskiy, S. V. Semenov, S. V. Komogortsev [et al.] // Book of abstacts of Samarkand International Symposium on Magnetism (SISM-2023) / int. adv. com. S. G. Ovchinnikov [et al.]. - 2023. - Ст. 2PO-L4-23. - P. 121. - РНФ № 22-22-00983 . - ISBN 978-5-00202-320-2

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Держатели документа:
Kirensky Institute of Physics SB RAS
FSRC “Crystallography and Photonics” RAS
Moscow Steel and Alloys Institute

Доп.точки доступа:
Ovchinnikov, S. G. \int. adv. com.\; Овчинников, Сергей Геннадьевич; Zagorskiy, D. L.; Semenov, S. V.; Семёнов, Сергей Васильевич; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Doludenko, I. M.; Balaev, D. A.; Балаев, Дмитрий Александрович; Panina, L. V.; Samarkand International Symposium on Magnetism(2023 ; July 2-6 ; Samarkand); Samarkand State University
}
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    Магнитодипольное взаимодействие в двумерном ансамбле нанонитей железа / С. В. Семенов, С. В. Комогорцев, А. Д. Балаев, Д. Л. Загорский // Магнитные материалы. Новые технологии : тез. докл. IX Байкал. междунар. конф. BICMM-2023 / чл. прогр. ком.: S. S. Aplesnin [et al.] ; чл. орг. ком. R. S. Iskhakov [et al.]. - Иркутск, 2023. - С. 30, DOI 10.26516/978-5-9624-2178-0.2023.1-207 . - ISBN 978-5-962402178-0
   Перевод заглавия: Magneto-dipole interaction in 2D iron nanowires array

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Держатели документа:
Институт физики им. Л. В. Киренского СО РАН
ФНИЦ "Кристаллография и фотоника" РАН

Доп.точки доступа:
Аплеснин, Сергей Степанович \чл. прогр. ком.\; Aplesnin, S. S.; Балаев, Дмитрий Александрович \чл. прогр. ком.\; Balaev, D. A.; Овчинников, Сергей Геннадьевич \чл. прогр. ком.\; Ovchinnikov, S. G.; Исхаков, Рауф Садыкович \чл. орг. ком.\; Iskhakov, R. S.; Семенов, Сергей Васильевич; Semenov, S. V.; Комогорцев, Сергей Викторович; Komogortsev, S. V.; Балаев, Александр Дмитриевич; Balaev, A.D.; Загорский, Д. Л.; Байкальская международная конференция "Магнитные материалы. Новые технологии"(9 ; 2023 ; сент. ; 11-14 ; Байкальск); "Магнитные материалы. Новые технологии", Байкальская международная конференция(9 ; 2023 ; сент. ; 11-14 ; Байкальск); "Magnetic materials. New tecnologies", Baikal International Conference(9 ; 2023 ; Sept. ; 11-14 ; Baikalsk); Иркутский государственный университет
}
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Shustin, M. S.
Effect of strong intersite Coulomb interaction on the topological properties of a superconducting nanowire / M. S. Shustin, S. V. Aksenov // Phys. Solid State. - 2022. - Vol. 64, Is. 13. - P. 2047-2053, DOI 10.21883/PSS.2022.13.53972.23s. - Cited References: 55. - This study was supported by the Russian Foundation for Basic Research, the Government of the Krasnoyarsk Territory and the Krasnoyarsk Regional Fund of Science, projects nos. 20-42-243001 and 20-42-243005. M.S.S. thanks the Foundation for the Advancement of Theoretical Physics and Mathematics ”BASIS“. S.V.A. is grateful to the Council of the President of the Russian Federation for Support of Young Scientists and Leading Scientific Schools, project No. MK-1641.2020.2 . - ISSN 1063-7834. - ISSN 1090-6460
Кл.слова (ненормированные):
superconducting nanowires -- Majorana zero modes -- strong electron correlations
Аннотация: For superconducting nanowire with the pairing of extended s-type symmetry, Rashba spin-orbit interaction in a magnetic field, the influence of strong intersite charge correlations on single-particle Majorana excitations is analyzed. This problem is investigated on the basis of the density matrix renormalization group numerical method. It is shown that with an increase in the repulsion intensity of electrons located at the neighboring sites, two subbands emerge in the lower Hubbard band of the open system. Based on calculations of the Majorana polarization and degeneracy of the entanglement spectrum, it was found that a topologically nontrivial phase with one edge state survives at the edge of each of the subbands where the concentration of electrons or holes is minimal.

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Публикация на русском языке Шустин, Максим Сергеевич. Влияние сильного межузельного кулоновского взаимодействия на топологические свойства сверхпроводящей нанопроволоки [Текст] / М. С. Шустин, С. В. Аксенов // Физ. тверд. тела. - 2021. - Т. 63 Вып. 11. - С. 1758-1765

Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB, Russian Academy of Sciences, Krasnoyarsk, Russia

Доп.точки доступа:
Aksenov, S. V.; Аксенов, Сергей Владимирович; Шустин, Максим Сергеевич
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Plasma-chemical method of silicon carbide modification to obtain particles with controlled surface morphology / T. A. Shalygina, M. S. Rudenko, I. V. Nemtsev [et al.] // Tech. Phys. Lett. - 2022. - Vol. 48, Is. 2. - P. 57-60, DOI 10.21883/TPL.2022.02.53582.19042. - Cited References: 9. - This study was conducted under state assignment from the Ministry of Science and Higher Education of the Russian Federation for the ”Smart Materials and Structures“ research laboratory (project No. FEFE-2020-0015 ”Development of Multipurpose Smart Materials and Structures Based on Modified Polymer Composite Materials Remaining Functional in Extreme Conditions“) . - ISSN 1063-7850. - ISSN 1090-6533
Кл.слова (ненормированные):
silicon carbide -- plasma chemistry -- surface morphology -- nanoparticles -- nanowires -- carbon shell -- core-shell
Аннотация: A plasma-chemical method for the modification of silicon carbide particles is presented, which makes it possible to obtain particles with a controlled surface morphology. The variable parameter of particle processing was the ratio of the fraction of plasma-forming (Ar) and additional (H) gases. It was shown that at Ar/H = 100/0, the formation of a carbon shell is observed; at Ar/H ratios of 91/9 and 84/16, the particles are characterized by a carbon shell decorated with silicon nanoparticles or nanowires, respectively. The modified particles were analyzed using scanning electron microscopy and Raman spectroscopy.

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Публикация на русском языке Плазмохимический способ модификации карбида кремния для получения частиц с управляемой морфологией поверхности [Текст] / Т. А. Шалыгина, М. С. Руденко, И. В. Немцев [и др.] // Письма в Журн. технич. физ. - 2022. - Т. 48 Вып. 4. - С. 15-19

Держатели документа:
Siberian State University of Science and Technology, Krasnoyarsk, Russia
Siberian Federal University, Krasnoyarsk, Russia
Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russia
Kirensky Institute of Physics, Federal Research Center KSC SB, Russian Academy of Sciences, Krasnoyarsk, Russia
Institute of Chemistry and Chemical Technology, Federal Research Center KSC SB RAS, Russian Academy of Sciences, Krasnoyarsk, Russia

Доп.точки доступа:
Shalygina, T. A.; Rudenko, M. S.; Nemtsev, I. V.; Немцев, Иван Васильевич; Parfenov, V. A.; Voronina, S. Yu.
}
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Satsuk, S. A.
Instability field anisotropy of polycrystalline ferromagnetic nanowires / S. A. Satsuk, S. V. Komogortsev // VIII Euro-Asian symposium "Trends in magnetism" (EASTMAG-2022) : Book of abstracts / program com. S. G. Ovchinnikov [et al.]. - 2022. - Vol. 1, Sect. : Spintronics and magnetic nanostructures. - Ст. A.P41. - P. 176-177. - Cited References: 4 . - ISBN 978-5-94469-051-7

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
Federal Research Center KSC SB RAS, Krasnoyarsk, Russia

Доп.точки доступа:
Ovchinnikov, S. G. \program com.\; Овчинников, Сергей Геннадьевич; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Сацук, Светлана Александровна; Российская академия наук; Физико-технический институт им. Е.К. Завойского ФИЦ Казанского научного центра РАН; Казанский (Приволжский) федеральный университет; Euro-Asian Symposium "Trends in MAGnetism"(8 ; 2022 ; Aug. ; 22-26 ; Kazan); "Trends in MAGnetism", Euro-Asian Symposium(8 ; 2022 ; Aug. ; 22-26 ; Kazan)
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Shustin, M. S.
Features of physical observables of a strongly correlated superconducting nanowire with Rashba spin–orbit interaction / M. S. Shustin, S. V. Aksenov // J. Exp. Theor. Phys. - 2022. - Vol. 135, Is. 4. - P. 500-512, DOI 10.1134/S1063776122100181. - Cited References: 66. - This study was supported by the Russian Foundation for Basic Research (project nos. 19-02-00348 and 20-02-00015), the administration of the Krasnoyarsk Kray, the Krasnoyarsk Kray Science Foundation (project nos. 20-42-243001 and 20-42-243005), and the Council for Grants from the President of Russian Federation (projects nos. MK-1641.2020.2 and MK-4687.2022.1). One of the authors (Sh.M.S.) thanks the Foundation for the Development of Theoretical Physics and Mathematics “BASIS” . - ISSN 1063-7761. - ISSN 1090-6509
Кл.слова (ненормированные):
Nanowires -- Statistical mechanics -- Topology
Аннотация: We analyze the behavior of caloric characteristics and the electron component of the spin polarization of excitations in the regime of strong electron correlations of a nanowire, which is characterized by induced superconductivity of the extended s-type symmetry, the Rashba spin–orbit interaction, and the Zeeman splitting of on-site energy. The problem has been analyzed using the density matrix renormalization group method. It is shown that for unambiguous identification of different phases (the topologically trivial phase with edge excitations and without them, as well as topologically nontrivial phases with one or several pairs of Majorana modes), it is insufficient to analyze each of the aforementioned characteristics separately; it is necessary to consider their features simultaneously.

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Публикация на русском языке Шустин, Максим Сергеевич. Особенности физических наблюдаемых сильно коррелированной сверхпроводящей нанопроволоки со спин-орбитальным взаимодействием Рашба [Текст] / М. С. Шустин, С. В. Аксенов // Журн. эксперим. и теор. физ. - 2022. - Т. 162 Вып. 4. - С. 541-554

Держатели документа:
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Aksenov, S. V.; Аксенов, Сергей Владимирович; Шустин, Максим Сергеевич
}
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    Influence of the filler particles’ surface morphology on the polyurethane matrix’s structure formation in the composite / T. A. Shalygina, M. S. Rudenko, I. V. Nemtsev [et al.] // Polymers. - 2021. - Vol. 13, Is. 22. - Ст. 3864, DOI 10.3390/polym13223864. - Cited References: 32. - This work was carried out by the team of the scientific laboratory “Intelligent Materials and Structures” within the state assignment of the Ministry of Science and Higher Education of the Russian Federation for the implementation of the project “Development of multifunctional smart materials and structures based on modified polymer composite materials capable to function in extreme conditions” (Project No. FEFE-2020-0015) . - ISSN 2073-4360
   Перевод заглавия: Влияние морфологии поверхности частиц наполнителя на формирование структуры полиуретановой матрицы в композите
Кл.слова (ненормированные):
polyurethane -- surface morphology -- nanoparticles -- nanowires -- core-shell -- molecular mobility -- molecular heterogeneity -- interfacial layers -- boundary layer -- transition layer
Аннотация: This article presents the surface morphology effect of silicon carbide (SiC) particles on the polyurethane binder’s structure formation in a dispersed-filled composite. The difference in the morphology and surface relief of filler particles was ensured by the implementation of plasma chemical modification. As a result of this modification, the filler consisted of core-shell particles characterized by a SiC core and a carbon shell (SiC@C), as well as a carbon shell decorated with silicon nanoparticles (SiC@C/SiNP) or nanos (SiC@C/SiNW). The study of the relaxation properties of polyurethane composites has shown that the strongest limiting effect on the molecular mobility of boundary layer’s chain segments is exerted by a highly developed surface with a complex relief of SiC@C/SiNP and SiC@C/SiNW particles. An empirical method was proposed to find the polymer fractions spent on the formation of the boundary, transition and bulk layers of the polymer matrix in the composite. It was shown that the morphology of the filler particles’ surface does not affect the dependence of the boundary layer thickness on the filler’s volume fraction. However, with an increase in the degree of surface development, the boundary layer thickness decreases.

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Держатели документа:
Smart Materials and Structures Lab., Department of Aircraft, Reshetnev Siberian State University of Science and Technology, 31 KrasnoyarskyRabochy Av., Krasnoyarsk 660037, Russia
L.V. Kirensky Institute of Physics SB RAS, Institute of Chemistry and Chemical Technology, Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”, 50 Akademgorodok, Krasnoyarsk 660036, Russia
Lomonosov Institute of Fine Chemical Technologies, MIREA—Russian Technological University, Vernadskogo Avenue 86, Moscow 119571, Russia

Доп.точки доступа:
Shalygina, T. A.; Rudenko, M. S.; Nemtsev, I. V.; Немцев, Иван Васильевич; Parfenov, V. A.; Парфенов В. А.; Voronina, S. Y.; Simonov-Emelyanov, I. D.; Borisova, P. E.
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Cu-Ag and Ni-Ag meshes based on cracked template as efficient transparent electromagnetic shielding coating with excellent mechanical performance / A. S. Voronin, Y. V. Fadeev, I. V. Govorun [et al.] // J. Mater. Sci. - 2021. - Vol. 56. Is. 26. - P. 14741-14762, DOI 10.1007/s10853-021-06206-4. - Cited References: 79. - This work was supported by Russian Foundation for Basic Research project «mol_a» № 18-38-00852 and a scholarship from the President of the Russian Federation SP-2235.2019.1. The sputtering Ag seed mesh and physicochemical analysis of materials was carried out on the equipment of Krasnoyarsk Regional Center of Research Equipment of Federal Research Center «Krasnoyarsk Science Center SB RAS» . - ISSN 0022-2461. - ISSN 1573-4803

РУБ Materials Science, Multidisciplinary
Рубрики:
COPPER NANOWIRES
   METALLIC MESH
   PLASTIC SUBSTRATE
   ELECTRODES
   FILMS
Аннотация: Nowadays, the technical advances call for efficient electromagnetic interference (EMI) shielding of transparent devices which may be subject to data theft. We developed Cu–Ag and Ni–Ag meshes on flexible PET substrate for highly efficiency transparent EMI shielding coating. Cu–Ag and Ni–Ag meshes obtained with galvanic deposition of copper and nickel on thin Ag seed mesh which was made by cracked template method. Coefficients S11, S21 and shielding efficiency (SE) were measured for Cu–Ag and Ni–Ag meshes in X-band (8–12 GHz) and K-band (18–26.5 GHz). 90 s copper deposition increase SE from 23.2 to 43.7 dB at 8 GHz with a transparency of 82.2% and a sheet resistance of 0.25 Ω/sq. The achieved maximum SE was 47.6 dB for Cu–Ag mesh with 67.8% transparency and 41.1 dB for Ni–Ag mesh with 77.8% transparency. Cu–Ag and Ni–Ag meshes have high bending and long-term stability. Minimum bend radius is lower than 100 µm. This effect allows to produce different forms of transparent shielding objects, for example, origami method. Our coatings are the leading among all literary solutions in three-dimensional coordinates: of sheet resistance–optical transmittance–cost of produced.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Fed Res Ctr,FRC KSC SB RAS, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Reshetnev Univ, Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk 660037, Russia.
Russian Acad Sci, Siberian Branch, Inst Chem & Chem Technol, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Voronin, A. S.; Fadeev, Y. V.; Govorun, I. V.; Говорун, Илья Валерьевич; Podshivalov, I. V.; Подшивалов, Иван Валерьевич; Simunin, M. M.; Tambasov, I. A.; Тамбасов, Игорь Анатольевич; Karpova, D. V.; Smolyarova, T. E.; Смолярова, Татьяна Евгеньевна; Lukyanenko, A. V.; Лукьяненко, Анна Витальевна; Karacharov, A. A.; Nemtsev, I. V.; Немцев, Иван Васильевич; Khartov, S. V.; Russian Foundation for Basic Research projectRussian Foundation for Basic Research (RFBR) [18-38-00852]; Russian FederationRussian Federation [SP-2235.2019.1]
}
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10.

Satsuk, S. A.
Micromagnetic modeling of the polycrystalline structure effect to the hysteresis loop in ferromagnetic nanowire / S. A. Satsuk, S. V. Komogortsev // Journal of Physics: Conference Series. - 2021. - Vol. 1847, Is. 1. - Ст. 012045, DOI 10.1088/1742-6596/1847/1/012045. - Cited References: 32. - This work was supported by the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project 18-42-240006
Кл.слова (ненормированные):
Crystallite size -- Ferromagnetic materials -- Ferromagnetism -- Hysteresis -- Hysteresis loops -- Nanowires -- Ferromagnetic nanowire -- Magnetic anisotropy constant -- Magnetic anisotropy energy -- Micromagnetic modeling -- Micromagnetic simulations -- Non-monotonic dependence -- Numerical calculation -- Polycrystalline structure -- Magnetic anisotropy
Аннотация: Extensive micromagnetic simulation results of the hysteresis loops in ferromagnetic nanowire with randomly oriented crystallites ordered in one chain is presented. Three main contributions to the magnetic energy of the wire had been taken into account: exchange, dipole-dipole, and the magnetic anisotropy energy of the crystallite. In cases where one of the three contributions to the energy can be neglected, the numerical calculations are in good agreement with the results of the well-known, analytically studied micromagnetic problems. In the case when all three contributions are comparable, a complex non-monotonic dependence of the coercive force on the crystallite size and the magnetic anisotropy constant is observed. In order to interpret these changes, a new micromagnetic scale is introduced, which takes into account all three contributions to the magnetic energy of the wire, and performs a correct transition to the analytically studied limits, which take into accountthe competition of any two contributions.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Komogortsev, S. V.; Комогорцев, Сергей Викторович; Сацук, Светлана Александровна; Dynamic Systems and Computer Science: Theory and Applications(2021 : Oct. 19-22 ; Irkutsk, Russian Federation)
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11.

Magnetic properties and FORC-based characterization of electrodeposited Co–W alloy nanowires / A. Yu. Samardak, E. Yoo, Y. S. Jeon [et al.] // The Fifth Asian School-Conference on Physics and Technology of Nanostructured Materials : Proceedings. - VLadivostok : Dalnauka Publishing, 2020. - Ст. IV.03.02o. - P. 102 . - ISBN 978-5-8044-1698-1

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Доп.точки доступа:
Samardak, A. Yu.; Yoo, E.; Jeon, Y. S.; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Ognev, A.V.; Samardak, A. S.; Kim, Y. K.; Asian School-Conference on Physics and Technology of Nanostructured Materials(5 ; 2020 ; 30 Jul - 3 Aug ; Vladivostok); Азиатская школа-конференция по физике и технологии наноструктурированных материалов(5 ; 2013 ; 30 июля - 3 авг. ; Владивосток)
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12.

Stability and gas sensing properties of Ta2X3M8(X = Pd, Pt; M = S, Se) nanoribbons: a first-principles investigation / E. V. Sukhanova, M. A. Visotin, Z. I. Popov, P. B. Sorokin // Phys. Chem. Chem. Phys. - 2020. - Vol. 22, Is. 26. - P. 14651-14659, DOI 10.1039/d0cp01545h. - Cited References: 48. - We thank A. Khabibrakhmanov for comments that greatly improved themanuscript. The investigation of the TPS nanoribbon stability was supported by the Russian Science Foundation (Project identifier: 17-72-20223). The sensing properties of the nanoribbons were investigated with the financial support of the RFBR (17-33-50125 mol_nr) and Ministry of Education and Science of the Russian Federation in the framework of Increase Competitiveness Program of NUST "MISiS" (No. K2-2019-016). The authors are grateful to the supercomputer cluster NUST "MISiS'' provided by Materials Modeling and Development Laboratory and to the Joint Supercomputer Center of the Russian Academy of Sciences . - ISSN 1463-9076. - ISSN 1463-9084

РУБ Chemistry, Physical + Physics, Atomic, Molecular & Chemical
Рубрики:
TOTAL-ENERGY CALCULATIONS
   STRUCTURAL EQUATION
   FABRICATION
   NANOWIRES
Аннотация: One dimensional Ta2(Pd/Pt)3(S/Se)8 nanoribbons (TPS-NR) are considered as a promising material in nanoelectronics due to their intrinsic semiconducting electronic properties. In this article, we study the stability of TPS-NR by considering their oxidation process. Our calculations showed that the Ta2(Pd/Pt)3Se8 nanoribbons are more environmentally stable than Ta2(Pd/Pt)3S8-NR. We studied the thermodynamics of the formation of monovacancies and their impact on the electronic properties of TPS-NR. Additionally, the sensing properties of environmentally stable Ta2Pd3Se8 nanoribbons were investigated. The observed changes of the electronic structure and transport properties after the adsorption of CO, NH3 and NO2 molecules reveal the mechanisms of possible application of Ta2Pd3Se8 nanoribbons as a gas sensor. The electronic transport properties of the nanoribbons exhibit a notable response to the presence of gas molecules.

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Держатели документа:
Natl Univ Sci & Technol MISiS, 4 Leninskiy Prospekt, Moscow 119049, Russia.
State Univ, Moscow Inst Phys & Technol, 9 Inst Sky 61, Dolgoprudnyi 141701, Moscow Region, Russia.
RAS, Emanuel Inst Biochem Phys, 4 Kosygin St, Moscow 119334, Russia.
Russian Acad Sci, Fed Res Ctr KSC, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Sukhanova, Ekaterina, V; Visotin, M. A.; Высотин, Максим Александрович; Popov, Zakhar, I; Sorokin, Pavel B.; Russian Science FoundationRussian Science Foundation (RSF) [17-72-20223]; RFBRRussian Foundation for Basic Research (RFBR) [17-33-50125 mol_nr]; Ministry of Education and Science of the Russian Federation of the NUST "MISiS" [K2-2019-016]
}
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13.

Bulgakov, E. N.
Resonant bending of silicon nanowires by incident light / E. N. Bulgakov, A. F. Sadreev // Opt. Lett. - 2020. - Vol. 45, Is. 19. - P. 5315-5318, DOI 10.1364/OL.406109. - Cited References: 29 . - ISSN 0146-9592
Кл.слова (ненормированные):
Aspect ratio -- Elastic waves -- Silicon -- Wave propagation
Аннотация: Coupling of two dielectric wires with a rectangular cross section gives rise to bonding and anti-bonding resonances. The latter is featured by extremal narrowing of the resonant width for variation of the aspect ratio of the cross section and distance between wires. A plane wave resonant to this anti-bonding resonance gives rise to unprecedent enhancement of the optical forces up to several nano Newtons per micrometer length of the wires. The forces oscillate with the angle of incidence of the plane wave but always try to repel the wires. If the wires are fixed at the ends, the light power 1.5mW/µm2 bends wires with length 50 µm by order 100 nm.

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

Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич
}
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14.

Composition-driven crystal structure transformation and magnetic properties of electrodeposited Co–W alloy nanowires / E. Yoo, A. Y. Samardak, Y. S. Jeon [et al.] // J. Alloys Compd. - 2020. - Vol. 843. - Ст. 155902, DOI 10.1016/j.jallcom.2020.155902. - Cited References: 48. - This study was supported by the Samsung Research Funding & Incubation Center of Samsung Electronics under Project Number SRFC-TA1703-06, and by the Russian Ministry of Science and Higher Education under the state task (0657 -2020-0013), by Act 211 of the Government of the Russian Federation (02.A03.21.0011). . - ISSN 0925-8388
Кл.слова (ненормированные):
Co–W alloy -- Nanowire -- Electrodeposition -- Crystal structure -- Electrodeposition -- First-order reversal curve
Аннотация: The cobalt (Co)–tungsten (W) alloys exhibit unique combinations of mechanical and magnetic properties, biocompatibility, resistance against corrosion, wear, and high-temperature, which makes them desirable materials for various practical applications. A nanoporous template with incorporated Co–W alloy nanowires is a soft magnetic composite, whose dielectric and magnetic properties can be tuned through the host material, pore distribution and size, Co–W composition and crystal structure, and geometry of the nanowires. Here, we report the composition-dependent structural and magnetic properties of Co–W alloy nanowires embedded in alumina templates by electrodeposition. The addition of W transforms cobalt from the crystalline hexagonal-close-packed (hcp) Co to a mixed nanocrystalline/amorphous-like Co(W) solid solution with ferromagnetic behavior and composition similar to that of the weakly magnetic Co3W compound. The combination of the approach to magnetic saturation, anisotropy field distribution method, micromagnetic simulations, and first-order reversal curve diagram identification method elucidates the structure-driven magnetization reversal processes in both individual nanowires and magnetostatically coupled array as a whole.

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Department of Materials Science and Engineering, Korea University, Seoul, 02841, South Korea
School of Natural Sciences, Far Eastern Federal University, Vladivostok, 690950, Russian Federation
National Research South Ural State University, Chelyabinsk, 454080, Russian Federation
Institute of Physics, SB Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Yoo, E.; Samardak, A. Y.; Jeon, Y. S.; Samardak, A. S.; Ognev, A. V.; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Kim, Y. K.
}
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15.

Zlotnikov, A. O.
Spin-orbit coupling-induced effective interactions in superconducting nanowires in the strong correlation regime / A. O. Zlotnikov, S. V. Aksenov, M. S. Shustin // Phys. Solid State. - 2020. - Vol. 62, Is. 9. - P. 1612-1618, DOI 10.1134/S1063783420090371. - Cited References: 24. - This study was supported by the Russian Foundation for Basic Research, projects nos. 19-02-00348 and 20-3270059, the Government of the Krasnoyarsk Territory and the Krasnoyarsk Territorial Foundation for Support of Scientific and R&D Activity, projects nos. 19-42-240011 and 18-42240014 "Single-Orbit Effective Model of an Ensemble of Spin-Polaron Quasiparticles in the Problem of Describing the Intermediate State and Pseudogap Behavior of Cuprate Superconductors,"and the Presidium of the Russian Academy of Sciences, program I.12 "Fundamental Problems of High-Temperature Superconductivity." S.V.A. thanks the Council for Grants of the President of the Russian Federation for Governmental Support of Young Russian Scientists, project no. MK-1641.2020.2 . - ISSN 1063-7834. - ISSN 1090-6460

РУБ Physics, Condensed Matter

Кл.слова (ненормированные):
superconducting nanowire -- spin-orbit coupling -- Majorana modes -- strong electron correlations
Аннотация: In the second order of the operator form of the perturbation theory, the effective interactions in a superconducting nanowire have been obtained at the strong electron correlations, when the spin-orbit coupling parameter is comparable with the hopping integral. Using the exact diagonalization technique, in short nanowires with the open boundary conditions at the strong Coulomb repulsion, the excitations corresponding to the Majorana edge states with the energy below the value of a bulk superconducting gap have been demonstrated.

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Публикация на русском языке Злотников, Антон Олегович. Эффективные взаимодействия, индуцированные спин-орбитальной связью в сверхпроводящих нанопроволоках в режиме сильных корреляций [Текст] / A. O. Злотников, С. В. Аксенов, М. С. Шустин // Физ. тверд. тела. - 2020. - Т. 62 Вып. 9. - С. 1447-1453

Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Aksenov, S. V.; Аксенов, Сергей Владимирович; Shustin, M. S.; Шустин, Максим Сергеевич; Злотников, Антон Олегович; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [19-02-00348, 20-3270059]; Krasnoyarsk Territorial Foundation [19-42-240011, 18-42240014]; Government of the Krasnoyarsk Territory; Presidium of the Russian Academy of SciencesRussian Academy of Sciences [I.12]; Council for Grants of the President of the Russian Federation [MK-1641.2020.2]
}
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16.

    Occurrence of Topologically Nontrivial Phases, Cascade of Quantum Transitions, and Identification of Majorana Modes in Chiral Superconductors and Nanowires (Scientific Summary) / V. V. Val'kov [et al.] // JETP Letters. - 2019. - Vol. 110, Is. 2. - P. 140-153, DOI 10.1134/S002136401914011X. - Cited References: 88. - This work was supported by the Russian Foundation for Basic Research (project nos. 16-02-00073, 18-32-00443, 19-02-00348) and jointly by the Government of the Krasnoyarsk Territory, the Krasnoyarsk Regional Fund of Science (project no. 18-42-243017, "Manifestation of Coulomb Interactions and Effects of Bounded Geometry in the Properties of Topological Edge States of Nanostructures with Spin-Orbit Interaction"; project no. 18-42-243018, "Contact Phenomena and Magnetic Disorder in the Problem of the Formation and Detection of Topologically Protected Edge States in Semiconductor Nanostructures"; and project no. 18-42-240014, "Single-Orbit Effective Model of an Ensemble of Spin-Polaron Quasiparticles in the Problem of Describing the Intermediate State and Pseudogap Behavior of Cuprate Superconductors"). S.V. Aksenov and A. O. Zlotnikov acknowledge the support of the Council of the President of the Russian Federation for State Support of Young Scientists and Leading Scientific Schools (project nos. MK-3722.2018.2 and MK-3594.2018.2). . - ISSN 0021-3640. - ISSN 1090-6487
Рубрики:
HUBBARD FERMIONS
   BOUND-STATE
   SPIN
   POLARIZATION
   COEXISTENCE
Аннотация: The problems of occurrence and experimental identification of topologically nontrivial phases in condensed matter have been reviewed. The results of the study of the effect of strong intra- and interatomic Coulomb interaction on a quantum phase transition with change in the topological index in an ensemble of Hubbard fermions on a triangular lattice have been reported. Nontrivial topology of the phase of coexistence of d + id chiral superconductivity and 120° spin ordering in a system with the triangular lattice has been discussed and the formation of Majorana modes in such a phase has been demonstrated. A cascade of quantum transitions that occurs at the variation of the magnetic field or the electrochemical potential has been analyzed for an open nanowire with the Rashba spin-orbit coupling and the induced superconducting pairing potential. It has been shown that anomalies of magneto- and electrocaloric effects are manifested near such quantum transitions and can be used to experimentally test materials on the existence of topologically nontrivial phases in them. The switching of the spin-polarized current in the topological superconducting phase has been predicted for a semimetal/superconducting wire/semimetal structure in the weak nonequilibrium regime.

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Публикация на русском языке

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

Доп.точки доступа:
Val'kov, V. V.; Вальков, Валерий Владимирович; Mitskan, V. A.; Мицкан, Виталий Александрович; Zlotnikov, A. O.; Злотников, Антон Олегович; Shustin, M. S.; Шустин, Максим Сергеевич; Aksenov, S. V.; Аксенов, Сергей Владимирович; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [16-02-00073, 18-32-00443, 19-02-00348]; Government of the Krasnoyarsk Territory; Krasnoyarsk Regional Fund of Science [18-42-243017, 18-42-243018, 18-42-240014]; Council of the President of the Russian Federation for State Support of Young Scientists and Leading Scientific SchoolsLeading Scientific Schools Program [MK-3722.2018.2, MK-3594.2018.2]
}
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17.

Ferromagnet-antiferromagnet transition in layered perovskites of Sr3YCo4O10.5 type / I. O. Troyanchuk [et al.] // Mater. Res. Express. - 2019. - Vol. 6, Is. 2. - Ст. 026105, DOI 10.1088/2053-1591/aaef21. - Cited References: 30. - This work was supported by the Belarussian Foundation for Basic Research (project F18R-159) and Russian Foundation Basic Research (contract no. 18-52-00020). Yu S Orlov and SG Ovchinnikov are grateful Russian Foundation Basic Research (contracts no. 18-52-00017 Bel_a, 16-02-00507) and Council on grants of the President of the Russian Federation (SP-1844.2016.1) for the support. . - ISSN 2053-1591

РУБ Materials Science, Multidisciplinary
Рубрики:
SPIN
NANOWIRES
Кл.слова (ненормированные):
neutron diffraction -- orbital ordering -- spin state
Аннотация: Sr1−xYxCoO2.65 (x = 0.2) with layered perovskite structure was studied by neutron diffraction, synchrotron x-ray and magnetometry methods. It is shown that in the 90–375 K temperature range the crystal structure can be described by the monoclinic space group A2/m with the superstructure 4√2a p × 2√2a p × 4a p (with a p corresponding to the unit cell parameter of the primitive cell) while basic diffraction peaks are well indexed in the space group I4/mmm (2a p × 2a p × 4a p ) shows an almost standard magnetization. The basic magnetic structure is G-type antiferromagnetic with average magnetic moments of 2.7 μ B/Co and 1.7 μ B/Co in anion-deficient CoO4+γ and stoichiometric CoO6 layers, respectively. A ferromagnetic component of about 0.27 μ B/Co is determined from the magnetization measurements at 8 K. Sr0.8Y0.2CoO2.65 shows an almost standard magnetization versus temperature dependence whereas Sr0.75Y0.25CoO2.65 exhibits an antiferromagnet-ferromagnet transition accompanied by a structural transformation. There is practically no spontaneous magnetization in x = 0.3. The type of the magnetic structure and the high value of TN suggest that the Co3+ ions are in both structural layers predominantly in the low-spin (LS)/high-spin (HS) state mixture. It is proposed that the ferromagnetic component is due to the orbital ordering occurring at TN in the CoO5 pyramids and the concomitant appearance of ferromagnetic coupling between the Co3+(HS) ions located in these CoO5 pyramids in the anion-deficient CoO4+γ layer.

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Держатели документа:
Natl Acad Sci Belarus Mat Sci, Sci & Pract Ctr, Minsk, BELARUS.
Joint Inst Nucl Res, Dubna, Russia.
Inst Laue Langevin, Grenoble, France.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk 660074, Russia.

Доп.точки доступа:
Troyanchuk, I. O.; Bushinsky, M. V.; Tereshko, N. V.; Lanovsky, R. A.; Sikolenko, V. V.; Ritter, C.; Orlov, Yu. S.; Орлов, Юрий Сергеевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Belarussian Foundation for Basic Research [F18R-159]; Russian Foundation Basic Research [18-52-00017 Bel_a, 16-02-00507, 18-52-00020]; Council on grants of the President of the Russian Federation [SP-1844.2016.1]
}
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18.

Val'kov, V. V.
Ground-State Fermion Parity and Caloric Properties of a Superconducting Nanowire / V. V. Val'kov, V. A. Mitskan, M. S. Shustin // J. Exp. Theor. Phys. - 2019. - Vol. 129, Is. 3. - P. 426-437, DOI 10.1134/S1063776119080144. - Cited References: 74. - This work was supported by the Russian Foundation for Basic Research (project nos. 16-02-00073, 18-32-00443, 18-42-243017, 18-42-243018), the Government of the Krasnoyarsk Kray, the Krasnoyarsk Kray Science Foundation within the scientific projects “Contact Phenomena and Magnetic Disorder in the Formation and Detection of Topologically Protected Edge States in Semiconductor Nanostructures” (project no. 18-42-243018), “Manifestation of Coulomb Interactions and Bounded-Geometry Effects in the Properties of Topological Edge States of Nanostructures with Spin–Orbit Interactions” (project no. 18-42-243017). One of us (Sh. M. S.) thanks the Council for Grants of the Russian President (project nos. MK-3594.2018.2 and MK-3722.2018.2). . - ISSN 1063-7761
Кл.слова (ненормированные):
Nanowires -- Quantum interference devices -- Semiconductor insulator boundaries -- Topology
Аннотация: Abstract: The ground-state structure and fermion parity have been determined for a semiconductor nano-wire with a strong Rashba spin–orbit interaction and proximity-induced superconductivity placed in an external magnetic field under periodic boundary conditions. Allowance for the open boundaries is shown to cause the topologically nontrivial parameter region to be partitioned into a set of subregions with a different ground-state fermionic parity. This peculiarity is related to the emergence of edge modes with nonmonotonically changing excitation energies in the system as its parameters change. At the quantum transition point, at which the ground-state fermionic parity changes, the edge-mode energy is zero. The magneto- and electrocaloric effects are shown to be effective characteristics that allow the series of quantum transitions in an open nanowire to be identified experimentally. These effects at low temperatures exhibit an anomalous behavior in the parameter region for which topologically stable Majorana modes are realized in long nanowires. © 2019, Pleiades Publishing, Inc.

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Публикация на русском языке

Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC, Siberian Branch, Russian Academy of Sciences, AkademgorodokKrasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Mitskan, V. A.; Мицкан, Виталий Александрович; Shustin, M. S.; Шустин, Максим Сергеевич; Вальков, Валерий Владимирович
}
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19.

Val'kov, V. V.
Majorana polarization and caloric anomalies in strongly correlated superconducting nanowires / V. V. Val'kov, S. V. Aksenov, M. S. Shustin // Euro-asian symposium "Trends in magnetism" (EASTMAG-2019) : Book of abstracts / чл. конс. ком.: S. G. Ovchinnikov, N. V. Volkov [et al.] ; чл. прогр. ком. D. M. Dzebisashvili [et al.]. - 2019. - Vol. 2. - Ст. I.P4. - P. 142-143. - Cited References: 19. - This study was funded by the Russian Foundation for Basic Research (Projects Nos. 19-02-00348, 18-32-00443). M.S.S. is grateful for the support of the Grant of the President of the Russian Federation (project SP-978.2019.5) . - ISBN 978-5-9500855-7-4

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia

Доп.точки доступа:
Ovchinnikov, S. G. \чл. конс. ком.\; Овчинников, Сергей Геннадьевич; Volkov, N. V. \чл. конс. ком.\; Волков, Никита Валентинович; Dzebisashvili, D. M. \чл. прогр. ком.\; Дзебисашвили, Дмитрий Михайлович; Aksenov, S. V.; Аксенов, Сергей Владимирович; Shustin, M. S.; Шустин, Максим Сергеевич; Вальков, Валерий Владимирович; Российская академия наук; Уральское отделение РАН; Институт физики металлов им. М. Н. Михеева Уральского отделения РАН; Уральский федеральный университет им. первого Президента России Б.Н. Ельцина; Российский фонд фундаментальных исследований; Euro-Asian Symposium "Trends in MAGnetism"(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg); "Trends in MAGnetism", Euro-Asian Symposium(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg)
Нет сведений об экземплярах (Источник в БД не найден)
}
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20.

Macro- and nanoscale magnetic anisotropy of FeNi(P) micropillars in polycarbonate membrane / S. V. Komogortsev [et al.] // J. Supercond. Novel Magn. - 2019. - Vol. 32, Is. 4. - P. 911–916, DOI 10.1007/s10948-018-4772-y. - Cited References: 56 . - ISSN 1557-1939
Кл.слова (ненормированные):
Magnetic nanowires -- Magnetic microwires -- Magnetic pillars -- Magnetic anisotropy
Аннотация: Macroscopic and local magnetic anisotropy of the FeNi(P) pillars deposited using electroless plating in the pores of the nuclear track-etched polycarbonate membrane has been studied. The alloy fills the pores and forms a nail-shaped pillar. The macroscopic easy magnetization axis was found to be perpendicular to the membrane plane due to magnetic shape anisotropy. The macroscopic magnetic anisotropy constant decreases with decreasing pillar diameter from 0.4 to 0.1 μm supposedly due to increase of the pillar cap contribution. Approach to magnetic saturation analysis indicates that the order in local easy magnetization axis is localized on a nanoscale. The correlation length of the local easy axis and the local magnetic anisotropy field in (Fe100−xNi x )98P2 pillars of different compositions with diameter of 0.4 μm are studied.

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Держатели документа:
Federal Research Center KSC SB RAS, Kirensky Institute of Physics, Krasnoyarsk, Russian Federation
Institut fur Sicherheitsforschung und Reaktortechnik, Juelich, Germany

Доп.точки доступа:
Komogortsev, S. V.; Комогорцев, Сергей Викторович; Chekanova, L. A.; Чеканова, Лидия Александровна; Denisova, E. A.; Денисова, Елена Александровна; Bukaemskiy, A. A.; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Mel'nikova, S. V.; Мельникова, Светлана Владимировна
}
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