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Vazhenina, I. G.
Spin-Wave Resonance Detection of Nanostructured Magnetic Alloy Inhomogeneities, Using the Example of Co–P and Co–Ni Planar Systems / I. G. Vazhenina, L. A. Chekanova, R. S. Iskhakov // Bull. Russ. Acad. Sci. Phys. - 2019. - Vol. 83, Is. 6. - P. 713-715, DOI 10.3103/S1062873819060364. - Cited References: 12. - The reported study was funded by the Russian Foundation for Basic Research, the Government of Krasnoyarsk Krai, and the Krasnoyarsk Regional Fund of Science as part of research project no. 18-42-243005 “Synthesis and Investigation of Magnetic Properties of Gradient Materials Characterized by a Predetermined Type of the Magnetic Parameter Change.” . - ISSN 1062-8738
Кл.слова (ненормированные):
Magnetic materials -- Magnetic thin films -- Multilayers -- Nanocrystals -- Nickel alloys -- Resonance -- Spin waves -- Thickness measurement
Аннотация: Inhomogeneous layered magnetic thin films of amorphous and nanocrystalline Со–Р and Co–Ni alloys are studied via spin-wave resonance. It is found that the formation of a magnetic potential profile specified over the coating thickness leads to characteristic modifications of the spin-wave resonance spectrum. Another important factor that determines the type of modification is the dominant magnetic parameter (the constant of magnetization or exchange coupling).

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Публикация на русском языке Важенина, Ирина Георгиевна. Неоднородности в магнитных наноструктурных сплавах, выявляемые методом спин-волнового резонанса, на примере планарных систем Co–P и Co–Ni [Текст] / И. Г. Важенина, Л. А. Чеканова, Р. С. Исхаков // Изв. РАН. Сер. физич. - 2019. - Т. 83 № 6. - С. 786–788

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

Доп.точки доступа:
Chekanova, L. A.; Чеканова, Лидия Александровна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Важенина, Ирина Георгиевна
}
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Crystal size: Versus paddle wheel deformability: Selective gated adsorption transitions of the switchable metal-organic frameworks DUT-8(Co) and DUT-8(Ni) / S. Ehrling [et al.] // J. Mater. Chem. A. - 2019. - Vol. 7, Is. 37. - P. 21459-21475, DOI 10.1039/c9ta06781g. - Cited References: 106. - The authors thank DFG (FOR 2433) for financial support. We thank HZB for the allocation of synchrotron radiation beam-time and financial support. PP, TW and TH used high performance facilities of ZIH Dresden. TW thanks the European Social Funds for Germany for a PhD fellowship. . - ISSN 2050-7488
Кл.слова (ненормированные):
Cobalt -- Crystallite size -- Density functional theory -- Dichloromethane -- Inclusions -- Nickel -- Organometallics -- Particle size -- Physisorption -- Single crystals -- Wheels -- X ray powder diffraction
Аннотация: Switchable pillared layer metal–organic frameworks M2(2,6-ndc)2(dabco) (DUT-8(M), M = Ni, Co, 2,6-ndc = 2,6-naphthalenedicarboxylate, dabco = 1,4-diazabicyclo-[2.2.2]octane, DUT – Dresden University of Technology) were synthesised in two different crystallite size regimes to produce particles up to 300 μm and smaller particles around 0.1 μm, respectively. The textural properties and adsorption-induced switchability of the materials, obtained from both syntheses, were studied by physisorption of N2 at 77 K, CO2 at 195 K and n-butane at 273 K, revealing pronounced differences in adsorption behavior for Ni and Co analogues. While the smaller nano-sized particles (50–200 nm) are rigid and show no gating transitions confirming the importance of crystallite size, the large particles show pronounced switchability with characteristic differences for the two metals resulting in distinct recognition effects for various gases and vapours. Adsorption of various vapours demonstrates consistently a higher energetic barrier for the “gate opening” of DUT-8(Co) in contrast to DUT-8(Ni), as the “gate opening” pressure for Co based material is shifted to a higher value for adsorption of dichloromethane at 298 K. Evaluation of crystallographic data, obtained from single crystal and powder X-ray diffraction analysis, showed distinct geometric differences in the paddle wheel units of the respective MOFs. These differences are further disclosed by solid-state UV-vis, FT-IR and Raman spectroscopy. Magnetic properties of DUT-8(Co) and DUT-8(Ni) were investigated, indicating a high-spin state for both materials at room temperature. Density functional theory (DFT) simulations confirmed distinct energetic differences for Ni and Co analogues with a higher energetic penalty for the structural “gate opening” transformation for DUT-8(Co) compared to DUT-8(Ni) explaining the different flexibility behaviour of these isomorphous MOFs.

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Держатели документа:
Department of Inorganic Chemistry, Technische Universitat Dresden, Bergstrasse 66, Dresden, 01069, Germany
University of Sofia, Faculty of Chemistry and Pharmacy, Sofia, 1126, Bulgaria
Leibniz Institute for Solid State and Materials Research, IFW Dresden, Helmholtz-strasse 20, Dresden, 01069, Germany
Wilhelm-Ostwald-Institute of Physical and Theoretical Chemistry, Faculty for Chemistry and Mineralogy, Leipzig University, Leipzig, 04103, Germany
Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology, Research Site Leipzig, Permoserstr. 15, Leipzig, 04318, Germany
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Svobodny Prospect 79, Krasnoyarsk, 660041, Russian Federation
Institute of Automation and Electrometry of the SB RAS, Novosibirsk, 630090, Russian Federation
Research Group Macromolecular Crystallography, Helmholtz-Zentrum Berlin fur Materialien und Energie, Albert-Einstein-Stra?e 15, Berlin, 12489, Germany
Department of Theoretical Chemistry, Technische Universitat Dresden, Berg-strasse 66, Dresden, 01069, Germany

Доп.точки доступа:
Ehrling, S.; Senkovska, I.; Bon, V.; Evans, J. D.; Petkov, P.; Krupskaya, Y.; Kataev, V.; Wulf, T.; Krylov, A. S.; Крылов, Александр Сергеевич; Vtyurin, A. N.; Втюрин, Александр Николаевич; Krylova, S. N.; Крылова, Светлана Николаевна; Adichtchev, S.; Slyusareva, E.; Weiss, M. S.; Buchner, B.; Heine, T.; Kaskel, S.
}
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    Proximity of Ferromagnetic Nickel to Paramagnetic Instability / N. G. Zamkova [et al.] // JETP Letters. - 2019. - Vol. 109, Is. 4. - P. 276-279, DOI 10.1134/S0021364019040131. - Cited References: 21. - This work was supported by the Russian Foundation for Basic Research (project no. 16-02-00273). . - ISSN 0021-3640. - ISSN 1090-6487
Рубрики:
TOTAL-ENERGY CALCULATIONS
   WAVE
Аннотация: The phase diagram of Ni in the space of the parameters has been studied within the Kanamori model with the parameters determined from comparison with ab initio calculations for ferromagnetic Ni. The proximity of Ni to the boundary of the transition to a paramagnetic state has been found.

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Публикация на русском языке Близость ферромагнитного никеля к парамагнитной неустойчивости [Текст] / Н. Г. Замкова [и др.] // Письма в ЖЭТФ. - 2019. - Т. 109 Вып. 4. - С. 265-268

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

Доп.точки доступа:
Zamkova, N. G.; Замкова, Наталья Геннадьевна; Gavrichkov, V. A.; Гавричков, Владимир Александрович; Sandalov, I. S.; Сандалов, Игорь Семёнович; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Russian Foundation for Basic Research [16-02-00273]
}
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Structure of bis(2-Thiobarbiturate)Tris (2,2-Bipyridyl)Nickel(II) Hexahydrate / N. N. Golovnev [et al.] // J. Struct. Chem. - 2019. - Vol. 60, Is. 1. - P. 111-116, DOI 10.1134/S0022476619010153. - Cited References: 15. - The work was performed within the State Task of the Ministry of Education and Science of the RF to the Siberian Federal University for 2017-2019 (4.7666.2017/BCh) using the equipment of the Baikal Analytical Center for Collective Use, the Siberian Branch of the RAS. . - ISSN 0022-4766
Кл.слова (ненормированные):
nickel(II) -- barbituric acid -- 2,2′-bipyridyl -- mixed-ligand complex -- structure -- thermal stability
Аннотация: The [Ni(Bipy)3](Htba)2·6H2O (I) complex (Bipy is 2,2′-bipyridyl, H2tba is 2-thiobarbituric acid) is synthesized and its structure is determined by single crystal XRD (cif-file CCDC No. 1836529). The crystals of I are monoclinic: a = 13.6618(6) Å, b = 23.9441(9) Å, c = 25.4335(8) Å, β = 93.091(1)°, V = 8307.7(5), space group P21/c, Z = 8. Via multiple intermolecular N–H⋯O, O–H⋯O, and C–H⋯S hydrogen bonds (HBs), the Htba− ions and water molecules form channels within which [Ni(Bipy)3]2+ cations are located. The Bipy molecules and the Htba− ions are involved in C–H⋯O HBs and the π−π interaction. The results of the thermal analysis and IR spectroscopy agree with the single crystal XRD data.

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Публикация на русском языке Структура гексагидрата бис(2-тиобарбитурата)трис(2,2-дипиридил)никеля(II) [Текст] / Н. Н. Головнев [и др.] // Журн. структ. химии. - 2019. - Т. 60 № 1. - С. 118-123

Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Far Eastern State Transport University, Khabarovsk, Russian Federation
Favorsky Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, Irkutsk, Russian Federation

Доп.точки доступа:
Golovnev, N. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Sterkhova, I. V.; Lesnikov, M. K.; Samoilo, A. S.
}
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    Пленки аморфного и кристаллического оксида никеля, полученные экстракционно-пиролитическим методом для электрохромных ячеек / А. Л. Белоусов [и др.] // Хим. технол. - 2019. - Т. 20, № 5. - С. 215-221, DOI 10.31044/1684-5811-2019-20-5-215-221. - Библиогр.: 8 . - ISSN 1684-5811
   Перевод заглавия: Films of amorphous and crystalline nickel oxide, produced by extraction-pyrolitic method for electrochromic cells
Кл.слова (ненормированные):
экстракты никеля -- экстракционно-пиролитическая технология -- тонкие пленки -- отжиг -- электрохромная ячейка -- nickel extract -- extraction-pyrolitic technology -- thin film -- annealing -- electrochromic cell
Аннотация: Представлены исследования тонких пленок оксида никеля, полученных экстракционно-пиролитическим методом на стеклянных и кварцевых подложках при температурах 380-600 °С. Пленки охарактеризованы методами атомно-силовой микроскопии и рентгеновской дифракции. Показано, что на стекле формируются аморфные, а на кварце - кристаллические пленки оксида никеля. Размер зерна в пленках зависит от температуры отжига, при этом повышенные температуры отжига приводят к рекристаллизации и снижению размера зерна в пленках NiO от 130 до 35 нм.
Study results of thin films of nickel oxide, produced by the extraction-pyrolitic method on glass and quartz substrates at temperatures 380-600 °С are presented. The film characteristics were obtained by the methods of atomic-force microscopy and X-ray diffraction. It has been found out that amorphous films are formed on glass and crystalline ones of nickel oxide are formed on quartz. Grain dimensions in the films depend on annealing temperature.

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Переводная версия Amorphous and Crystalline Nickel Oxide Films Obtained by the Extraction-Pyrolysis Method for Electrochromic Cells [Текст] / A. L. Belousov, T. N. Patrusheva, A. A. Karacharov [et al.] // Theor. Found. Chem. Eng. - 2020. - Vol. 54 Is. 4.- P.699-705

Держатели документа:
Балтийский государственный технический университет Военмех им. Д. Ф. Устинова
Институт общей и неорганической химии РАН
Институт физики им. Киренского СО РАН
Институт химии и химической технологии СО РАН
Сибирский федеральный университет

Доп.точки доступа:
Белоусов, А.Л.; Belousov A.L.; Патрушева, Т.Н.; Patrusheva T.N.; Карачаров, А.А.; Karacharov A.A.; Иваненко, Александр Анатольевич; Ivanenko, A. A.; Кирик, С.Д.; Kirik S.D.; Холькин, А.И.; Kholkin A.I.
}
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    Synthesis and characterization of core-shell magnetic nanoparticles NiFe2O4@Au / D. Saykova, S. Saikova, Y. Mikhlin [et al.] // Metals. - 2020. - Vol. 10, Is. 8. - Ст. 1075, DOI 10.3390/met10081075. - Cited References: 45 . - ISSN 2075-4701
   Перевод заглавия: Синтез и характеристика магнитных наночастиц ядро-оболочка NiFe2O4@Au

РУБ Materials Science, Multidisciplinary + Metallurgy & Metallurgical
Рубрики:
NICKEL FERRITE NANOPARTICLES
   GOLD NANOPARTICLES
   OXIDATION
   REDUCTION
Кл.слова (ненормированные):
nickel ferrite nanoparticles -- NiFe2O4@Au core-shell nanoparticles -- synthesis -- X-ray photoelectron spectroscopy -- magnetic circular dichroism
Аннотация: In this study, NiFe2O4@Au core–shell nanoparticles were prepared by the direct reduction of gold on the magnetic surface using amino acid methionine as a reducer and a stabilizing agent simultaneously. The obtained nanoparticles after three steps of gold deposition had an average size of about 120 nm. The analysis of particles was performed by X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, and UV-Vis spectroscopy techniques. The results indicate successful synthesis of core–shell particles with the magnetic core, which consists of a few agglomerated nickel ferrite crystals with an average size 25.2 ± 2.0 nm, and the thick gold shell consists of fused Au0 nanoparticles (NPs). Magnetic properties of the obtained nanoparticles were examined with magnetic circular dichroism. It was shown that the magnetic behavior of NiFe2O4@Au NPs is typical for superparamagnetic NPs and corresponds to that for NiFe2O4 NPs without a gold shell. The results indicate the successful synthesis of core–shell particles with the magnetic nickel ferrite core and thick gold shell, and open the potential for the application of the investigated hybrid nanoparticles in hyperthermia, targeted drug delivery, magnetic resonance imaging, or cell separation. The developed synthesis strategy can be extended to other metal ferrites and iron oxides.

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Держатели документа:
Siberian Fed Univ, Sch Nonferrous Met & Mat Sci, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Siberian Branch, Inst Chem & Chem Technol, Fed Res Ctr,Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Kirensky Inst Phys, Fed Res Ctr, Krasnoyarsk Sci Ctr,Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Saykova, Diana; Saikova, Svetlana; Mikhlin, Yuri; Panteleeva, Marina; Ivantsov, R. D.; Иванцов, Руслан Дмитриевич; Belova, E.
}
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Amorphous and Crystalline Nickel Oxide Films Obtained by the Extraction-Pyrolysis Method for Electrochromic Cells / A. L. Belousov, T. N. Patrusheva, A. A. Karacharov [et al.] // Theor. Found. Chem. Eng. - 2020. - Vol. 54, Is. 4. - P. 699-705, DOI 10.1134/S0040579520040041. - Cited References: 8. - This work was performed as part of the program "Research and Development for the Priority Areas of the Russian Science-and-Technology Sector for 2014-2020"; Grant Agreement no. 075-15-2019-1843; the Project Unique Identifier RFMEFI60719X0307 . - ISSN 0040-5795. - ISSN 1608-3431

РУБ Engineering, Chemical
Рубрики:
NIO THIN-FILMS
Кл.слова (ненормированные):
nickel extract -- extraction-pyrolysis technology -- thin film -- annealing -- electrochromic cell
Аннотация: This paper reports studies of thin films of nickel oxide obtained by the extraction–pyrolysis method on glass and quartz substrates at temperatures of 380–600°C. The films have been characterized by atomic force microscopy and X-ray diffraction. It is shown that amorphous and crystalline nickel oxide films are formed on the glass. The grain size depends on the annealing temperature, while increased annealing temperatures lead to recrystallization and a decrease in the grain size in NiO films from 130 to 35 nm.

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Публикация на русском языке Пленки аморфного и кристаллического оксида никеля, полученные экстракционно-пиролитическим методом для электрохромных ячеек [Текст] / А. Л. Белоусов [и др.] // Хим. технол. - 2019. - Т. 20 № 5. - С. 215-221

Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Baltic State Tech Univ VOENMEX, St Petersburg 190005, Russia.
Russian Acad Sci, Siberian Branch, Inst Chem & Chem Technol, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, Moscow 119991, Russia.

Доп.точки доступа:
Belousov, A. L.; Patrusheva, T. N.; Karacharov, A. A.; Ivanenko, A. A.; Иваненко, Александр Анатольевич; Kirik, S. D.; Khol'kin, A. I.; program "Research and Development for the Priority Areas of the Russian Science-and-Technology Sector for 2014-2020" [075-15-2019-1843]; [RFMEFI60719X0307]
}
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Non-standing spin-waves in confined micrometer-sized ferromagnetic structures under uniform excitation / S. Pile, T. Feggeler, T. Schaffers [et al.] // Appl. Phys. Lett. - 2020. - Vol. 116, Is. 7. - Ст. 072401, DOI 10.1063/1.5139881. - Cited References: 37. - The use of the Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE-AC02-76SF00515. The authors would like to thank the Austrian Science Foundation (FWF), Project No. I-3050 as well as the German Research Foundation (DFG), Project No. OL513/1-1 for financial support. K.O., H.W., B.Z and M.F. acknowledge additional funding from Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – Project-ID 405553726 – TRR 270 and B.Z and M.F. acknowledge additional funding from Research Grant No. 075-15-2019-1886 from the Government of the Russian Federation . - ISSN 0003-6951
Кл.слова (ненормированные):
Ferromagnetic materials -- Ferromagnetic resonance -- Ferromagnetism -- Iron alloys -- Magnetic logic devices -- Micrometers -- Nickel alloys -- Permalloy
Аннотация: A non-standing characteristic of directly imaged spin-waves in confined micrometer-sized ultrathin Permalloy (Ni80Fe20) structures is reported along with evidence of the possibility to alter the observed state by modifications to the sample geometry. Using micromagnetic simulations, the presence of the spin-wave modes excited in the Permalloy stripes along with the quasi-uniform modes was observed. The predicted spin-waves were imaged in direct space using time resolved scanning transmission X-ray microscopy, combined with a ferromagnetic resonance excitation scheme (STXM-FMR). STXM-FMR measurements revealed a non-standing characteristic of the spin-waves. Also, it was shown by micromagnetic simulations and confirmed using STXM-FMR results that the observed characteristic of the spin-waves can be influenced by the local magnetic fields in different sample geometries.

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Держатели документа:
Institute of Semiconductor and Solid State Physics, Johannes Kepler University Linz, Linz, 4040, Austria
Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Duisburg, 47057, Germany
Ernst Ruska-Centrum fur Mikroskopie und Spektroskopie Mit Elektronen, Forschungszentrum Julich GmbH, Julich, D-52425, Germany
Kirensky Institute of Physics, Federal Research Center Ksc Sb Ras, Krasnoyarsk, 660036, Russian Federation
Stanford Synchrotron Radiation Laboratory, Slac National Accelerator Laboratory, Menlo Park, CA 94025, United States
Department of Physics, University of California Santa Cruz, Santa Cruz, CA 95064, United States
Department of Applied Physics, Aalto University School of Science, NanoSpin, P.O. Box 15100, Aalto, FI-00076, Finland
Lawrence Berkeley National Laboratory, Advanced Light Source, Berkeley, CA 94720, United States
Department of Material Sciences and Engineering, Stanford University, Stanford, CA 94305, United States

Доп.точки доступа:
Pile, S.; Feggeler, T.; Schaffers, T.; Meckenstock, R.; Buchner, M.; Spoddig, D.; Zingsem, B.; Ney, V.; Farle, M.; Фарле, Михаель; Wende, H.; Ohldag, H.; Ney, A.; Ollefs, K.
}
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    The effect of microstructural features on the ferromagnetism of nickel oxide nanoparticles synthesized in a low-pressure arc plasma / A. V. Ushakov, I. V. Karpov, L. Y. Fedorov [et al.] // Physica E. - 2020. - Vol. 124. - Ст. 114352, DOI 10.1016/j.physe.2020.114352. - Cited References: 31. - The work was performed with a support of the grant of the Russian Science Foundation (Project No. 16-19-10054 ). The electron microscopy investigations were conducted in the SFU Joint Scientific Center supported by the State assignment (#FSRZ-2020-0011) of the Ministry of Science and Higher Education of the Russian Federation . - ISSN 1386-9477
   Перевод заглавия: Влияние особенностей микроструктуры на ферромагнетизм наночастиц оксида никеля, синтезированных в дуговой плазме низкого давления
Кл.слова (ненормированные):
Nickel oxide -- Nanoparticles -- Band gap -- Magnetic properties
Аннотация: Nickel oxide nanoparticles were first synthesized by sputtering high-purity nickel in an oxygen plasma of a low-pressure arc discharge. The structure, morphology, and optical and magnetic properties of NiO nanoparticles were studied by XRD, TEM, FTIR, UV-VIS, and VSM. TEM images showed that the obtained NiO nanoparticles have a narrow particle size distribution and an average particle size of 12 nm. The XRD results and the processing of diffractograms by the Rietveld method showed that the obtained nanoparticles have a face-centered cubic lattice with an average particle size of 13 nm. With decreasing temperature, residual stresses increase and peaks corresponding to the superstructure appear. The band gap of NiO was determined from the optical absorption spectrum and amounted to 3.21 eV. Magnetic measurements showed that, at temperatures of 200 and 300 K, NiO nanoparticles, unlike bulk particles, exhibit ferromagnetic behavior, and at 5 K a magnetic hysteresis loop appears. Based on the studies, a dendritic model of the nanoparticle microstructure is proposed.

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Держатели документа:
Federal Research Center “Krasnoyarsk Scientific Center”, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Federal Research Center “Krasnoyarsk Scientific Center”, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Ushakov, A. V.; Karpov, I. V.; Fedorov, L. Y.; Demin, V. G.; Goncharova, E. A.; Shaihadinov, A. A.; Zeer, G. M.; Zharkov, S. M.; Жарков, Сергей Михайлович
}
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10.

    Core-shell Nanosize Particles Mg@Ni: Synthesis and Properties / G. N. Churilov [et al.] // J. Sib. Fed. Univ. Math. Phys. - 2019. - Vol. 12, Is. 1. - P. 28-35 ; Журнал СФУ. Математика и физика, DOI 10.17516/1997-1397-2019-12-1-28-35. - Cited References: 12 . - ISSN 1997-1397. - ISSN 2313-6022
   Перевод заглавия: Наночастицы Mg@Ni, их получение и свойства

РУБ Mathematics

Кл.слова (ненормированные):
core-shell -- nanopartials -- nickel-magnesium -- synthesis in plasma -- surface coating -- частицы ядро–оболочка -- наночастицы -- никель-магниевые частицы -- плазмохимический синтез -- покрытие поверхности частицы
Аннотация: In this paper, we study particles with metallic core (magnesium) - metal shell (nickel) structure, synthesized in metal-containing plasma of high frequency arc discharge. X-ray diffraction analysis, X-ray fluorescence analysis and scanning electron microscopy show that the particles have a uniform nickel shell, which is also indirectly confirmed by comparing the results of hydrogenation of Mg and Mg@Ni particles. Measurement of volume magnetization indicates that shell thickness of most particles is not more than 22 nm.
В данной работе исследованы частицы со структурой металлическое ядро (магний) - металлическая оболочка (никель), полученные в металлсодержащей высокочастотной плазме дугового разряда. Методами рентгенофазового анализа, рентгенофлуоресцентного анализа, сканирующей электронной микроскопии показано, что частицы имеют сплошную никелевую оболочку, что также косвенно подтверждается сравнением результатов гидрирования частиц Mg и Mg@Ni. С помощью измерений объемной намагниченности установлено, что наибольшая часть частиц имеет толщину оболочек не более 22 нм.

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Держатели документа:
Siberian Fed Univ, Svobodny 79, Krasnoyarsk 660041, Russia.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Akademgorodok 50-38, Krasnoyarsk 660036, Russia.
SB RAS, Krasnoyarsk Sci Ctr, Akademgorodok 50, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Churilov, G. N.; Чурилов, Григорий Николаевич; Nikolaev, N. S.; Николаев, Никита Сергеевич; Osipova, I. V.; Осипова, Ирина Владимировна; Cherepakhin, A. V.; Черепахин, Александр Владимирович; Nemtsev, I. V.; Немцев, Иван Васильевич; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Andyuseva, V. G.; Андюсева, Валентина Г.

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