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    Visualization of compensating currents in type-II/1 superconductor via high field cooling / J. Valsecchi, J. S. White, M. Bartkowiak [et al.] // Appl. Phys. Lett. - 2020. - Vol. 116, Is. 19. - Ст. 192602, DOI 10.1063/5.0004438. - Cited References: 38. - This work was partially funded by the Swiss National Science Foundation under Project No. 162582 and the Korean-Swiss Science and Technology Programme under Project No. EG-KR-11-92017. We gratefully acknowledge C. Carminati, M. D. Siegwart, M. Raventos, S. Samothrakitis, F. M. Piegsa, E. Lehmann, and C. Ruegg for fruitful discussions. We also thank M. Zolliker, S. Fischer, P. Schurter, S. Stamm, U. Filges, P. Hautle, J. Hovind, and M. Schild for technical support. . - ISSN 0003-6951. - ISSN 1077-3118
   Перевод заглавия: Визуализация компенсирующих токов в сверхпроводнике II/1 рода при охлаждении в сильных полях

РУБ Physics, Applied
Рубрики:
DOMAINS
Аннотация: The morphology of vortex lattice domains in bulk type-II/1 superconductors is of central interest for many areas such as fundamental condensed matter physics, engineering science, and the optimization of materials for high transport current superconductivity applications. Here, we present a comprehensive experimental study of a single crystal niobium in the intermediate mixed state and Shubnikov phase with two complementary neutron techniques: high resolution polarized neutron imaging and small-angle neutron scattering. In this way, we were able to identify and visualize the occurrence of compensating currents, the flux line closure, and the freezing of the vortex spacing during the process of field cooling and high field cooling. With the combination of complementary neutron techniques, it was possible to add insights into the quest for the understanding of the flux pinning and nucleation of vortices in type-II/1 superconductors during the process of field cooling and high field cooling.

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Держатели документа:
Paul Scherrer Inst, Lab Neutron Scattering & Imaging, CH-5232 Villigen, Switzerland.
Univ Geneva, CH-1205 Geneva, Switzerland.
Paul Scherrer Inst, Lab Neutron & Muon Instrumentat, CH-5232 Villigen, Switzerland.
Univ Appl Sci, Beuth Hsch Tech Berlin, D-14109 Berlin, Germany.
Pusan Natl Univ, Sch Mech Engn, Busan 46241, South Korea.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Valsecchi, Jacopo; White, Jonathan S.; Bartkowiak, M.; Treimer, Wolfgang; Kim, Youngju; Lee, Seung Wook; Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Harti, Ralph P.; Morgano, Manuel; Strobl, Markus; Grunzweig, C.; Swiss National Science FoundationSwiss National Science Foundation (SNSF) [162582]; Korean-Swiss Science and Technology Programme [EG-KR-11-92017]
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    Structural, electronic and vibrational properties of YAl3(BO3)4 / A. S. Oreshonkov, E. M. Roginskii, N. P. Shestakov [et al.] // Materials. - 2020. - Vol. 13, Is. 3. - Ст. 545, DOI 10.3390/ma13030545. - Cited References: 72. - This research was funded by Russian Foundation for Basic Research (18-03-00750, 18-05-00682 and 18-32-20011). - The computations were performed using the facilities of the Computational Center of the Research Park of St. Petersburg State University. We are grateful to the Center of collective use of FRC KSC SB RAS for the provided equipment namely Bruker Vertex 70V, Emitech K575XD, Hitachi TM3000 and Bruker Smart ApexII. Some parts of the experiments were performed in the multiple-access center “High-Resolution Spectroscopy of Gases and Condensed Matter” in IA&E SBRAS (Novosibirsk, Russia). The experimental part corresponding to Raman measurements was supported by the Ministry of Education and Science of the Russian Federation, grant no AAAA-A17-117052410033-9. The authors thank A.M. Sysoev and V.M. Sventitsky for assistance with sample orientation . - ISSN 1996-1944
   Перевод заглавия: Структурные, электронные и колебательные свойства YAl3(BO3)4
Кл.слова (ненормированные):
YAl3(BO3)4 -- huntite-like structure -- rare-earth alumoborates -- infrared spectra -- monoclinic domains
Аннотация: The crystal structure of YAl3(BO3)4 is obtained by Rietveld refinement analysis in the present study. The dynamical properties are studied both theoretically and experimentally. The experimental Raman and Infrared spectra are interpreted using the results of ab initio calculations within density functional theory. The phonon band gap in the Infrared spectrum is observed in both trigonal and hypothetical monoclinic structures of YAl3(BO3)4. The electronic band structure is studied theoretically, and the value of the band gap is obtained. It was found that the YAl3(BO3)4 is an indirect band gap dielectric material.

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Держатели документа:
Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
School of Engineering and Construction, Siberian Federal University, Krasnoyarsk 660041, Russia
Laboratory of Spectroscopy of Solid State, Ioffe Institute, St. Petersburg 194021, Russia
Laboratory of Radiospectroscopy and Spintronics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
School of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk 660041, Russia
Institute of Automation and Electrometry, Russian Academy of Sciences, Novosibirsk 630090, Russia
Department of Inorganic and Physical Chemistry, Tyumen State University, Tyumen 625003, Russia
Department of General and Special Chemistry, Industrial University of Tyumen, Tyumen 625000, Russia

Доп.точки доступа:
Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Roginskii, E. M.; Shestakov, N. P.; Шестаков, Николай Петрович; Gudim, I. A.; Гудим, Ирина Анатольевна; Temerov, V. L.; Темеров, Владислав Леонидович; Nemtsev, I. V.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Adichtchev, S. V.; Pugachev, A. M.; Denisenko, Yu. G.
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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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The induced anisotropy and its influence on absorption of the NMR and domain structure of Co-P amorphous films / A. V. Chzhan [et al.] // Solid State Phenomena. - 2011. - Vol. 168-169. - P. 145-148, DOI 10.4028/www.scientific.net/SSP.168-169.145 . - ISSN 1012-0394
Кл.слова (ненормированные):
amorphous magnetic films -- coercive force -- domain structure -- induced anisotropy -- nuclear magnetic resonance -- amorphous films -- cobalt -- coercive force -- crystals -- magnetic anisotropy -- magnetic devices -- magnetic domains -- magnetic films -- metallic films -- palladium -- resonance -- amorphous films -- anisotropy -- cobalt -- coercive force -- magnetic anisotropy -- magnetism -- palladium -- amorphous magnetic films -- domain structure -- experimental research -- induced anisotropy -- intermediate layers -- magnetization process -- co-p films -- nuclear magnetic resonance(nmr) -- nuclear magnetic resonance -- nuclear magnetic resonance
Аннотация: The results of experimental research into magnetic properties of amorphous Co-P films obtained by chemical sedimentation on various intermediate layers have been represented. The nuclear magnetic resonance (NMR) spectra of films sedimentated on intermediate layers of Pd crystal and amorphous NiP compound have been measured .The features of formation of domain structures and magnetization processes in the presence and absence of the induced anisotropy have been described.

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eLibrary
Держатели документа:
Kirenskii Institute of Physics, Siberian Branch of RAS, 660036, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Chzhan, A.V.; Patrin, G. S.; Патрин, Геннадий Семёнович; Kiparisov, S. Ya.; Кипарисов, Семен Яковлевич; Seredkin, V. A.; Середкин, Виталий Александрович; Maltsev, V. K.; Мальцев, Вадим Константинович; Krayukhin, I. N.; Краюхин, Иван Николаевич; Euro-Asian Symposium "Trends in MAGnetism"(4 ; 2010 ; Jun.-Jul. ; Ekaterinburg); "Trends in MAGnetism", Euro-Asian Symposium(4 ; 2010 ; Jun.-Jul. ; Ekaterinburg)
}
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    Micromagnetic simulation of domain structure in thin permalloy films with in-plane and perpendicular anisotropy / P. N. Solovev, A. V. Izotov, B. A. Belyaev, N. M. Boev // Physica B. - 2020. - Vol. 604. - Ст. 412699, DOI 10.1016/j.physb.2020.412699. - Cited References: 31. - This work was supported by the Ministry of Science and Higher Education of the Russian Federation , agreement number 075-11-2019-054 dated 22.11.2019 . - ISSN 0921-4526
   Перевод заглавия: Микромагнитное моделирование доменной структуры тонких пермаллоевых пленок с одноосной планарной и перпендикулярной анизотропией
Кл.слова (ненормированные):
Micromagnetic simulation -- Thin magnetic film -- Magnetic anisotropy -- Stripe domains -- Hysteresis loop -- Saturation field
Аннотация: We investigate the domain structure formation and magnetization processes in thin permalloy films with in-plane and perpendicular magnetic anisotropy by using micromagnetic simulation. We show that the films of thicknesses less than a critical value Lcr are in the monodomain state, and their magnetization processes are specified by the in-plane anisotropy. Above the critical thickness Lcr, the perpendicular anisotropy dominates, leading to the formation of the stripe domain structure that significantly complicates the magnetization reversal. The values of the critical thickness, parameters of the domain structure, and the saturation field obtained from the micromagnetic simulations are compared with the corresponding values calculated using analytical expressions derived by Murayama in the framework of the domain structures theory.

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

Доп.точки доступа:
Solovev, P. N.; Соловьев, Платон Николаевич; Izotov, A. V.; Изотов, Андрей Викторович; Belyaev, B. A.; Беляев, Борис Афанасьевич; Boev, N. M.; Боев, Никита Михайлович
}
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Light interference in a hybrid-aligned nematic layer with nonordered surface disclination lines / A. M. Parshin, A. V. Barannik, V. Y. Zyryanov, V. F. Shabanov // J. Opt. Soc. Am. B. - 2020. - Vol. 37, Is. 7. - P. 2053-2057, DOI 10.1364/JOSAB.395976. - Cited References: 19 . - ISSN 0740-3224. - ISSN 1520-8540

РУБ Optics
Рубрики:
LIQUID-CRYSTAL
   SCATTERING
   DEFECTS
   DOMAINS
Аннотация: The propagation of a laser beam through a hybrid-aligned nematic layer with a surface disclination line has been investigated. A model of the light interference has been developed to consider the scattering by the structural inhomogeneities. The analytical expression that includes the factor characterizing an exponential decrease in the light scattering has been obtained. The dependence of the intensity of light transmitted through the layer on the magnetic field has been measured. The dependence has been accompanied by the interference oscillations. The theoretical expression is consistent with the experiment, which confirms the correctness of the model concepts.

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

Доп.точки доступа:
Parshin, A. M.; Паршин, Александр Михайлович; Barannik, A. V.; Баранник, Алексей Владимирович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович
}
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Volochaev, M. N.
Lorentz microscopy methods for magnetic domain structure study / M. N. Volochaev, L. I. Kveglis, Y. Y. Loginov // IOP Conf. Ser.: Mater. Sci. Eng. - 2017. - Vol. 255, Is. 1. - Ст. 012015, DOI 10.1088/1757-899X/255/1/012015. - Cited References: 12. - This research was supported by Fırat University Scientific Research Projects Unit MF.13.02). Authors acknowledge to Kemerli Firm (Turkey) for their material supports.
Кл.слова (ненормированные):
High resolution transmission electron microscopy -- Magnetic domains -- Magnetic structure -- Transmission electron microscopy
Аннотация: The capabilities of transmission electron microscope Hitachi HT7700 for magnetic domain structure (MDS) study of thin films using Lorentz transmission electron microscopy (LTEM) methods is discussed. Two methods of magnetic domain structure study (defocus method and aperture shift method, including low-angle electron diffraction (LAED)) in thin magnetic films were examined.

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Доп.точки доступа:
Kveglis, L. I.; Loginov, Yu. Yu.; Волочаев, Михаил Николаевич; International Scientific Conference Reshetnev Readings(20 ; 2016 ; Nov. 9-12 ; Krasnoyarsk)
}
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Parshin, A. M.
Interference of the light passing through LC domains formed on the polymer surface / A. M. Parshin, A. V. Shabanov, V. Ya. Zyryanov // 14th Eur. Conf. Liq. Cryst. (ECLC) : conf. programme / чл. нац. орг. и прогр. ком. V. Ya. Zyryanov. - 2017. - Ст. P50. - Библиогр.: 1 . - Poster

Материалы конференции,
Материалы конференции

Доп.точки доступа:
Zyryanov, V. Ya. \чл. нац. орг. и прогр. ком.\; Зырянов, Виктор Яковлевич; Shabanov, A. V.; Шабанов, Александр Васильевич; Zyryanov, V. Ya.; Паршин, Александр Михайлович; European Conference on Liquid Crystals(14 ; 2017 ; June ; 25-30 ; Moscow); Московский государственный университет им. М.В. Ломоносова
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Micromagnetism in a planar system with a random magnetic anisotropy and two-dimensional magnetic correlations / S. V. Komogortsev [et al.] // J. Exp. Theor. Phys. - 2017. - Vol. 125, Is. 2. - P. 323-332, DOI 10.1134/S1063776117070196. - Cited References: 68. - This work was supported by the Russian Foundation for Basic Research, project no. 16-03-00256. . - ISSN 1063-7761
Кл.слова (ненормированные):
Anisotropy -- Crystallite size -- Defects -- Magnetic domains -- Magnetic materials -- Magnetism -- Magnetization -- Microstructure -- Stochastic systems -- Topology -- Dipole interaction -- Dipole interaction energy -- Magnetic correlation -- Magnetic microstructures -- Micromagnetic simulations -- Micromagnetic structure -- Random magnetic anisotropies -- Two-dimensional magnetization -- Magnetic anisotropy
Аннотация: The hysteresis loops and the micromagnetic structure of a ferromagnetic nanolayer with a randomly oriented local easy magnetization axis and two-dimensional magnetization correlations are studied using a micromagnetic simulation. The properties and the micromagnetic structure of the nanolayer are determined by the competition between the anisotropy and exchange energies and by the dipole–dipole interaction energy. The magnetic microstructure can be described as an ensemble of stochastic magnetic domains and topological magnetization defects. Dipole–dipole interaction suppresses the formation of topological magnetization defects. The topological defects in the magnetic microstructure can cause a sharper change in the coercive force with the crystallite size than that predicted by the random magnetic anisotropy model. © 2017, Pleiades Publishing, Inc.

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Публикация на русском языке Микромагнетизм в планарной системе со случайной магнитной анизотропией и двумерными магнитными корреляциями [Текст] / С. В. Комогорцев [и др.] // Журн. эксперим. и теор. физ. : Наука, 2017. - Т. 152 Вып. 2. - С. 379-390

Держатели документа:
Kirenskii Institute of Physics, Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation
Reshetnev Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Komogortsev, S. V.; Комогорцев, Сергей Викторович; Fel’k, V. A.; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Shadrina, G. V.
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10.

Interference of nonpolarized light in liquid crystal domains on a polymer surface / A. M. Parshin [et al.] // J. Opt. Soc. Am. B. - 2019. - Vol. 36, Is. 7. - P. 1845-1849, DOI 10.1364/JOSAB.36.001845. - Cited References: 23 . - ISSN 0740-3224. - ISSN 1520-8540

РУБ Optics
Рубрики:
FRIEDERICKSZ THRESHOLD
   FIELD
   LAYER
   FILM
Аннотация: The interference of nonpolarized light transmitted through an ensemble of nematic liquid crystal domains formed on a polycarbonate surface has been investigated. A model based on the superposition of the ordinary and extraordinary beams passing through domains with a radial structure has been developed. Expressions for the phase difference and intensity of the interfering beams have been derived that take into account the distribution of the liquid crystal director field. The dependences of the optical transmittance of a domain layer on the applied voltage have been calculated with regard to the material and optical constants of a liquid crystal and structural features and averaged morphological parameters of individual domains in the experimental sample. The results of the calculation are consistent with the experimental data, which confirms the validity of the proposed model. (C) 2019 Optical Society of America

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

Доп.точки доступа:
Parshin, A. M.; Паршин, Александр Михайлович; Barannik, A. V.; Баранник, Алексей Владимирович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович
}
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