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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Turchin P. P., Zaitsev A. I., Vasiliev A. D., Nesterov A. E.
Заглавие : Pulse ultrasonic investigations of acoustic waves propagation in single-quasicrystalls Ag42In42Yb16
Коллективы : International Conference on Quasicrystals (12; 2013 ; Sept. ; 1-6; Krakow, Poland)
Место публикации : 12th Int. Conf. on Quasicrystals: Book of abstracts. - 2013. - P.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Iskhakov R. S., Stolyar S. V., Yakovchuk V.Yu., Chizhik M. V.
Заглавие : Peculiarity of the ferromagnetic and spin-wave resonance in exchangecoupled NiFe/X/NiFe three layer structures (X = Ag, Cu, DyCo)
Коллективы : Moscow International Symposium on Magnetism
Место публикации : Diffusion and Defect Data Pt.B: Solid State Phenomena. - 2012. - Vol. 190. - P.459-462. - ISBN 1, DOI 10.4028/www.scientific.net/SSP.190.459. - ISBN 9783037854365
Ключевые слова (''Своб.индексиров.''): acoustic mode--exchange coupling--ferromagnetic resonance--magnetic films--optic mode--sandwich--spin-wave resonance--mode number--optic modes--optical satellites--resonance field--sandwich--spin-wave mode--spin-wave resonance--three-layer structures--exchange coupling--ferromagnetic resonance--lattice vibrations--magnetic films--magnetic materials--spin waves--resonance
Аннотация: FMR and SWR spectra of exchange-coupled structures NiFe/Cu/NiFe, NiFe/Ag/NiFe and NiFe/DyCo/NiFe have been investigated. We revealed that the optical satellites of the exchange spin-wave modes are characterized not by the standard Kittle-dependence but by their own resonance field dependence on the mode number: Hr opt(n)?n 5/2. В© (2012) Trans Tech Publications.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mikhlin Y. L., Vishnyakova E. A., Romanchenko A. S., Saikova S. V., Likhatski M. N., Larichev Y. V., Tuzikov F. V., Zaikovskii V. I., Zharkov S. M.
Заглавие : Oxidation of Ag nanoparticles in aqueous media: Effect of particle size and capping
Место публикации : Appl. Surf. Sci.: Elsevier Science, 2014. - Vol. 297. - P.75-83. - ISSN 0169-4332, DOI 10.1016/j.apsusc.2014.01.081. - ISSN 1873-5584
Примечания : Cited References: 58. - This work was partially financially supported by the Ministry of Education and Science of RF (Grant 8580) and RFBR (12-03-31178).
Предметные рубрики: EX-SITU XPS
POLYCRYSTALLINE SILVER ELECTRODES
RAY PHOTOELECTRON-SPECTROSCOPY
METAL NANOPARTICLES
ELECTROCHEMICAL OXIDATION
ABSORPTION SPECTROSCOPY
PYROLYTIC-GRAPHITE
OXYGEN-ADSORPTION
TRANSFORMATIONS
DISSOLUTION
Ключевые слова (''Своб.индексиров.''): silver nanoparticles--oxidation--resistive switching effect--x-ray photoelectron spectroscopy
Аннотация: Many applications and environmental impact of silver-bearing nanomaterials critically depend upon their specific reactivity, which is still poorly understood. Here, silver nanoparticles (Ag NPs) of about 3-5 nm and 10-12 nm in diameter, uncapped and capped with l-glucose or citrate, were prepared, characterized using UV-vis absorption spectroscopy, SAXS, TEM, and their (electro) chemical oxidation was examined in comparison with each other and bulk metal applying scanning tunneling microscopy and spectroscopy, cyclic voltammetry, and XPS. A resistive switching effect was found in the tunneling spectra measured in air at the smaller uncapped Ag NPs deposited on HOPG and was interpreted in terms of Ag transfer between the particle and the probe. The anodic oxidation of these Ag NPs in 1 M NaOH yielded 3D Ag2O, while only a layer of "primary"Ag(I) oxide emerged on larger uncapped nanoparticles during the potential sweep. The formation of AgO at higher potentials proceeded readily at the "primary"oxide but was retarded at the smaller NPs. The citrate- and glucose-capping substantially impeded the formation both of Ag2O and AgO. The findings highlighted, particularly, a non-trivial effect of particle size and transient mobilization of Ag species on the reactions of silver nanoparticles. (c) 2014 Elsevier B.V. All rights reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Myagkov V. G., Bayukov O. A., Mikhlin Y. L., Zhigalov V. S., Bykova L. E., Bondarenko G. N.
Заглавие : Long-range chemical interactions in solid-state reactions: effect of an inert Ag interlayer on the formation of L10-FePd in epitaxial Pd(0 0 1)/Ag(0 0 1)/Fe(0 0 1) and Fe(0 0 1)/Ag(0 0 1)/Pd(0 0 1) trilayers
Место публикации : Philos. Mag.: Taylor & Francis, 2014. - Vol. 94, Is. 23. - P.2595-2622. - ISSN 1478-6435, DOI 10.1080/14786435.2014.926037. - ISSN 1478-6443
Примечания : Cited References: 117
Предметные рубрики: HIGH-TEMPERATURE SYNTHESIS
THIN-FILMS
PHASE-FORMATION
MAGNETIC-PROPERTIES
X-RAY
MARTENSITIC TRANSFORMATIONS
PHOTOELECTRON-SPECTROSCOPY
STRUCTURAL CHARACTERISTICS
CASIMIR FORCE
GOLD-FILMS
Ключевые слова (''Своб.индексиров.''): fe-pd system--epitaxial thin film--inert ag buffer layer--diffusion--solid-state reactions--l1(0)--long-range chemical interactions
Аннотация: The effect of 0, 0.5, and 1 μm-thick Ag interlayers on the chemical interaction between Pd and Fe in epitaxial Pd(0 0 1)/Ag(0 0 1)/Fe(0 0 1)/MgO(0 0 1) and Fe(0 0 1)/Ag(0 0 1)/Pd(0 0 1)/MgO(0 0 1) trilayers has been studied using X-ray diffraction, 57Fe Mössbauer spectroscopy, X-ray photoelectron spectroscopy, and magnetic structural measurements. No mixing of Pd and Fe occurs via the chemically inert Ag layer at annealing temperatures up to 400 °C. As the annealing temperature is increased above 400 °C, a solid-state synthesis of an ordered L10-FePd phase begins in the Pd(0 0 1)/Ag(0 0 1)/Fe(0 0 1) and Fe(0 0 1)/Ag(0 0 1)/Pd(0 0 1) film trilayers regardless of the thickness of the buffer Ag layer. In all samples, annealing above 500 °C leads to the formation of a disordered FexPd1−x(0 0 1) phase; however, in samples lacking the Ag layer, the synthesis of FexPd1−x is preceded by the formation of an ordered L12-FePd3 phase. An analysis of the X-ray photoelectron spectroscopy results shows that Pd is the dominant moving species in the reaction between Pd and Fe. According to the preliminary results, the 2.2 μm-thick Ag film does not prevent the synthesis of the L10-FePd phase and only slightly increases the phase’s initiation temperature. Data showing the ultra-fast transport of Pd atoms via thick inert Ag layers are interpreted as direct evidence of the long-range character of the chemical interaction between Pd and Fe. Thus, in the reaction state, Pd and Fe interact chemically even though the distance between them is about 104 times greater than an ordinary chemical bond length.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Myagkov V. G., Bykova L. E., Zhigalov V. S., Bon G. N.
Заглавие : Long-range chemical interactions in solid-state reactions: Effect of an inert Ag interlayer on the formation of L10-FePd in Epitaxial Pd(001)/Ag(001)/Fe(001) and Fe(001)/Ag(001)/Pd(001) trilayers
Коллективы : International Symposium on the Reactivity of Solids (18; 2014; Saint Petersburg)
Место публикации : International Symposium on the Reactivity of Solids. [[b]]ISRS-18[[/b]], 9—13 June 2014, Saint Petersburg, Russia : Book of Abstracts. - 2014. - С. 133. - ISBN 978-5-9651-0838-1
Аннотация: Diffusion is one of the unique phenomena that control major natural processes. It is a basic contributor to chemical reactions and structural transformations in solids.[1,2] Solid-state reactions, including those occurring in thin films and multilayers, comprise three successive stages: (1) breakage of reagent chemical bonds, (2) diffusion transfer of reagent atoms via a reaction product, and (3) rearrangement and formation of new bonds. The reaction rate is determined by step 2, which is the primary stage. Traditionally, solid-state diffusion of reacting atoms via a layer of a reaction product is considered to occur through an atomic exchange with nearest neighbors that leads to their random walk over a crystal lattice. The mean distance d that an atom moves over time t equals the mean-square atomic displacement 〈∆x2〉 and satisfies the Einstein equation d = 〈∆x2〉 = 2Dt. In numerous studies on solid-state reactions in thin films and multilayers, the parabolic growth of the reaction layer thickness d which satisfies the Einstein equation is presented as experimental proof of the diffusive nature of the reaction.
Book of Abstracts
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Voronin A. S., Ivanchenko F. S., Simunin M. M., Shiverskiy A. V., Aleksandrovsky A. S., Nemtsev I. V., Fadeev Y. V., Karpova D. V., Khartov S. V.
Заглавие : High performance hybrid rGO/ Ag quasi-periodic mesh transparent electrodes for flexible electrochromic devices
Место публикации : Appl. Surf. Sci.: Elsevier Science, 2016. - Vol. 364. - P.931–937. - ISSN 0169-4332, DOI 10.1016/j.apsusc.2015.12.182. - ISSN 1873-5584
Примечания : Cited References: 31
Предметные рубрики: NANOWIRE NETWORKS
GRAPHENE FILMS
OXIDE
OXIDATION
HEATERS
Ключевые слова (''Своб.индексиров.''): quasi-periodic mesh transparent electrode self-organized template--reduced graphene oxide (rgo)--flexible electrochromic device
Аннотация: A possibility of creating a stable hybrid coating based on the hybrid of a reduced graphene oxide (rGO)/ Ag quasi-periodic mesh (q-mesh) coating has been demonstrated. The main advantages of the suggested method are the low cost of the processes and the technology scalability. The Ag q-mesh coating is formed by means of the magnetron sputtering of silver on the original template obtained as a result of quasi-periodic cracking of a silica film. The protective rGO film is formed by low temperature reduction of a graphene oxide (GO) film, applied by the spray-deposition in the solution of NaBH4. The coatings have low sheet resistance (12.3 Ω/sq) and high optical transparency (82.2%). The hybrid coating are characterized by high chemical stability, as well as they show high stability to deformation impacts. High performance of the hybrid coatings as electrodes in the sandwich-system «electrode – electrochromic composition – electrode» has been demonstrated. The hybrid electrodes allow the electrochromic sandwich to function without any visible degradation for a long time, while an unprotected mesh electrode does not allow performing even a single switching cycle.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Balaev D. A., Popkov S. I., Semenov S. V., Bykov A. A., Shaykhutdinov K. A., Gokhfeld D. M., Petrov M. I.
Заглавие : Magnetoresistance hysteresis of bulk textured Bi1.8Pb0.3Sr1.9Ca2Cu3Ox + Ag ceramics and its anisotropy
Коллективы :
Место публикации : Physica C. - 2010. - Vol. 470, Is. 1. - P.61-67. - ISSN 0921-4534, DOI 10.1016/j.physc.2009.10.007
Примечания : Cited References: 24. - Authors thanks to I.L. Belozerova for help in preparation of textured ceramics. This work was supported by program N5 of RAS, project N7, and in part in frames of young scientist projects of Siberian Federal University, project N6.
Предметные рубрики: CRITICAL-CURRENT ANISOTROPY
HIGH-TEMPERATURE SUPERCONDUCTOR
CRITICAL-CURRENT DENSITY
MAGNETIC HYSTERESIS
TAPES
FLUX
YBA2CU3O7-DELTA
FIELD
Ключевые слова (''Своб.индексиров.''): magnetoresistance--anisotropy--scaling--magnetization--bi2223--bscco--anisotropy--bi2223--bscco--magnetization--magnetoresistance--scaling--bi-2223--bscco--external fields--granular superconductors--magnetic induction--parameters characterizing--anisotropy--calcium--ceramic materials--crystallites--electric resistance--hysteresis--lead--magnetic moments--magnetoelectronics--magnetoresistance--nanocrystalline alloys--silver--superconducting materials--superconductivity--magnetic field effects
Аннотация: Magnetoresistance of bulk textured Bi1.8Pb0.3Sr1.9Ca2Cu3Ox + Ag ceramics has been studied in the magnetic fields applied parallel and perpendicular to a-b planes of Bi2223 crystallites. Besides well known anisotropy of magnetoresistance of textured superconductors (R-H parallel to c RH parallel to a-b), anisotropic hysteresis of R(H) dependences was investigated. Parameters characterizing hysteretic R(H) curves differ for the cases H parallel to c and H parallel to a-b. This behavior is explained within the model of a granular superconductor where the total magnetic induction in the intercrystallite boundaries is superposition of the external field and the magnetic field induced by dipole magnetic moments of neighbor crystallites. (C) 2009 Elsevier B.V. All rights reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Petrov M. I., Belozerova I. L., Shaikhutdinov K. A., Balaev D. A., Dubrovskii A. A., Popkov S. I., Vasil'ev A. D., Mart'yanov O. N.
Заглавие : Preparation, microstructure, magnetic and transport properties of bulk textured Bi(1.8)Pb(0.3)Sr(1.9)Ca(2)Cu(3)O(x) and Bi(1.8)Pb(0.3)Sr(1.9)Ca(2)Cu(3)O(x)+Agceramics
Коллективы :
Разночтения заглавия :авие SCOPUS: Preparation, microstructure, magnetic and transport properties of bulk textured Bi1.8Pb0.3Sr1.9Ca2Cu 3Ox and Bi1.8Pb0.3Sr 1.9Ca2Cu3Ox+Ag ceramics
Место публикации : Supercond. Sci. Technol.: IOP PUBLISHING LTD, 2008. - Vol. 21, Is. 10. - Ст.105019. - ISSN 0953-2048, DOI 10.1088/0953-2048/21/10/105019
Примечания : Cited References: 22. - This work is supported by program of RAS 'Quantum macrophysics' No. 3.4 and integration project of SB RAS No. 3.4 and in part by Krasnoyarsk Regional Scientific Foundation (KRSF), Grants 17G057, 18G148 and 18G011. DAB and AAD acknowledge the Russian Science Support Foundation.
Предметные рубрики: HIGH-TEMPERATURE SUPERCONDUCTORS
CRITICAL-CURRENT DENSITY
BI-2223 TAPES
BI2223
SILVER
DISCS
(BI
Ключевые слова (''Своб.индексиров.''): building materials--calcium--copper--crystallites--diamagnetic materials--lead--lead alloys--magnetic anisotropy--magnetic properties--nanocrystalline alloys--silver--textures--transport properties--bi-2223--bulk samples--degree of textures--diamagnetic responses--liquid mediums--magnetic and transport properties--magnetic measurements--room temperatures--ceramic materials
Аннотация: A new method of preparation of bulk textured Bi2223 ceramics and Bi2223 + Ag composites, based on room temperature pressing of foamed precursor (Bi2223, Bi2223 + Ag) in a liquid medium, is proposed. SEM and XRD data prove a high degree of texture of the bulk samples obtained. Magnetic measurements performed in directions H parallel to c-axis and H parallel to a-b-planes of Bi2223 crystallites demonstrates anisotropy of magnetization confirming the texture of the ceramics. The materials obtained possess large diamagnetic response in the direction H parallel to a-b-planes of Bi2223 crystallites at both 77.4 and 4.2 K.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mahesh R., Sander D., Zharkov S. M., Kirschner J.
Заглавие : Stress and growth of Ag monolayers on a Fe(100) whisker
Место публикации : Phys. Rev. B: AMERICAN PHYSICAL SOC, 2003. - Vol. 68, Is. 4. - Ст.45416. - ISSN 1098-0121, DOI 10.1103/PhysRevB.68.045416
Примечания : Cited References: 42
Предметные рубрики: FCC-FE FILMS
MAGNETIC SUPERLATTICES
ULTRATHIN FILMS
OSCILLATIONS
CU(100)
SANDWICHES
INTERLAYER
LAYERS
MAGNETORESISTANCE
INTERFACE
Аннотация: In situ stress measurements have been performed during the deposition of epitaxial Ag monolayers on a Fe whisker. A compressive stress of -0.6 GPa is measured above a 5-ML Ag thickness which is ascribed to the epitaxial misfit of -0.8% between Ag and Fe. Back-extrapolation of the coverage dependent stress measurements to zero coverage reveals an Ag-induced change of the surface stress of Fe(100) of -1.23 N/m. Comparing this surface stress change with the calculated surface stress for Ag(100) suggests a tensile surface stress of +2.05 N/m for clean Fe(100). The deposition of 2 - 5 layers of Ag does not change the stress induced by the first layer significantly. This almost stress free growth is assigned to a rougher surface morphology which is most likely caused by a surface alloy formation.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mamalis A. G., Ovchinnikov S. G., Petrov M. I., Balaev D. A., Shaihutdinov K. A., Gohfeld D. M., Kharlamova S. A., Vottea I. N.
Заглавие : Composite materials on high-T-c superconductors and BaPbO3, Ag basis
Коллективы : International Conference on New Theories, Discoveries and Applications of Superconductors and Related Materials
Разночтения заглавия :авие SCOPUS: Composite materials on high-Tc superconductors and BaPbO3, Ag basis
Место публикации : Physica C. - 2001. - Vol. 364. - P.174-177. - ISSN 0921-4534, DOI 10.1016/S0921-4534(01)00749-3
Примечания : Cited References: 9
Ключевые слова (''Своб.индексиров.''): composite high-t-c superconductors--superconducting fault current limiter--composite high-tc superconductors--superconducting fault current limiter--composite materials--electric fault currents--interfaces (materials)--magnetic variables measurement--mathematical models--scanning electron microscopy--spectrometry--superconducting transition temperature--superconductivity--x ray diffraction analysis--solid state reactions--high temperature superconductors
Аннотация: The preparation., processing and characterization of the composite materials on high-T-c superconductor (HTSC) basis, YBa2Cu3O7/Ag and Y0.75Lu0.25Ba2Cu3O7/BaPbO3, is reported. The initial components YBa2Cu3O7 and BaPbO3 were prepared by the standard solid state reaction technique. The microstructures of the samples were observed by scanning electron microscopy. whilst the XRD paterns of the composites HTSC+Ag and HTSC+BaPbO3 revealed the 123 superconducting phase and the Ag or BaPbO3 structure. The chemical compositions of the powders and the interface zone were found by employing energy dispersive spectrometry. The resistive and magnetic measurements of the composites indicated the transition temperature 93.5 K. Application of such composite materials in the construction of a superconducting fault current limiter model is reported. (C) 2001 Elsevier Science B.V. All rights reserved.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Petrov M. I., Balaev D. A., Belozerova I. L., Popkov S. I., Dubrovskii A. A., Shaykhutdinov K. A., Mart'yanov O. N.
Заглавие : Increase in the Diamagnetic Response from Low-Density Bi1.8Pb0.3Sr1.9Ca2Cu3Ox High-Temperature Superconductors and Bi1.8Pb0.3Sr1.9Ca2Cu3Ox + Ag Composites
Коллективы : Russian Academy of Sciences; Krasnoyarsk Territorial Science Foundation [17G057, 18G148, 18G011]
Разночтения заглавия :авие SCOPUS: Increase in the diamagnetic response from low-density Bi1.8Pb0.3Sr1.9Ca2Cu3Ox high-temperature superconductors and Bi1.8Pb0.3Sr1.9Ca2Cu3Ox + Ag composites
Место публикации : Tech. Phys. - 2009. - Vol. 54, Is. 8. - P.1130-1134. - ISSN 1063-7842, DOI 10.1134/S1063784209080064
Примечания : Cited References: 9. - This work was supported by the program "Quantum Macrophysics," Russian Academy of Sciences; complex integration project nos. 3 and 4, Siberian Branch, Russian Academy of Sciences; and Krasnoyarsk Territorial Science Foundation (grant nos. 17G057, 18G148, and 18G011).
Ключевые слова (''Своб.индексиров.''): 74.62.bf--74.72.hs--75.60.ej
Аннотация: Low-density polycrystalline Bi1.8Pb0.3Sr1.9Ca2Cu3Ox high-temperature superconductors with a foamlike microstructure and composites consisting of this superconductor and silver in an amount of 20, 25, and 30 vol % are synthesized. The microstructure, as well as the temperature and field dependences of the magnetization, M(T) and M(H), are studied. It is found that, in Bi1.8Pb0.3Sr1.9Ca2Cu3Ox high-temperature superconductors and Bi1.8Pb0.3Sr1.9Ca2Cu3Ox + Ag composites, the diamagnetic response is enhanced and the screening properties are improved compared with high-temperature polycrystalline superconductors with the same composition that are prepared by the standard technology. The observed effect is explained by the features of magnetic flux penetration into a porous medium.
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12.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Matsynin A. A., Myagkov V. G., Bykova L. E., Zhigalov V. S., Tambasov I. A., Bondarenko G. N.
Заглавие : Formation of ferromagnetic Mn5Ge3 phase in Ge/Ag/Mn trilayers
Коллективы : Euro-Asian Symposium "Trends in MAGnetism", "Trends in MAGnetism", Euro-Asian Symposium, Институт физики им. Л.В. Киренского Сибирского отделения РАН
Место публикации : VI Euro-Asian Symposium "Trends in MAGnetism" (EASTMAG-2016): abstracts/ ed.: O. A. Maksimova, R. D. Ivantsov. - Krasnoyarsk: KIP RAS SB, 2016. - Ст.P10.13. - P.481. - ISBN 978-5-904603-06-9 (Шифр -478014040)
Примечания : References: 2. - This study was supported by the RFBR (Grants 15-02-00948-A, 16-03-00069 А), and by the program UMNIK-2015 №0011727
Ключевые слова (''Своб.индексиров.''): diluted magnetic semiconductor--spintronics--ferromagnetic mn5ge3--thin-film solid-state reaction
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13.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Мацынин, Алексей Александрович, Мягков, Виктор Григорьевич, Быкова, Людмила Евгеньевна, Жигалов, Виктор Степанович, Тамбасов, Игорь Анатольевич
Заглавие : Дальнодействующие химические взаимодействия при твердофазных реакциях в тонких пленках: формирование Mn5Ge3 в Ge/Ag/Mn пленках
Коллективы : Менделеевский съезд по общей и прикладной химии, Уральское отделение РАН
Место публикации : XX Менделеевский съезд по общей и прикладной химии: тез. докл. в 5-ти т. - 2016. - Т. 2а: Химия и технология материалов, включая наноматериалы. - С. 443. - ISBN 978-5-7691-2450-1
Примечания : Библиогр.: 1 назв. - Это исследование было поддержано РФФИ, гранты 15-02-00948-А, 16-03-00069 А, а также Программой фонда содействию развитию малых форм предприятий, программа "УМНИК", Наука и техника 0011727, 6662ГУ2015
Материалы конференции
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14.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Matsynin A. A., Myagkov V. G., Bykova L. E., Zhigalov V. S., Tambasov I. A.
Заглавие : Long-range chemical interactions in thin film solid state reactions: formation of Mn5Ge3 in Ge/Ag/Mn trilayers
Коллективы : Менделеевский съезд по общей и прикладной химии, Уральское отделение РАН
Место публикации : XX Mendeleev congr. on general and appl. chem.: Five-volumes book of abstracts. - 2016. - Vol. 2a: Chemistry and technology of materials and nanomaterials. - P.421
Примечания : Библиогр.: 1 назв.
Материалы конференции
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15.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Алтунин, Роман Русланович, Моисеенко, Евгений Тимофеевич, Николаева Н. С., Жарков, Сергей Михайлович
Заглавие : Структурные фазовые превращения при твердофазной реакции в тонких пленках Al/Ag
Коллективы : "Решетневские чтения", международная научно-практическая конференция
Место публикации : Решетневские чтения: материалы XX Междунар. науч.-практ. конф. : в 2-х ч. - Красноярск: Сибирский государственный аэрокосмический университет им. акад. М. Ф. Решетнева, 2016. - Ч. 1. - С. 590-592. - ISBN 1990-7702
Примечания : Библиогр.: 5. - Работа выполнена при финансовой поддержке РФФИ (грант № 16-33-00475 мол а)
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Myagkov V. G., Bykova L. E., Matsynin A. A., Volochaev M. N., Zhigalov V. S., Tambasov I. A., Mikhlin Y. L., Velikanov D. A., Bondarenko G. N.
Заглавие : Solid state synthesis of Mn5Ge3 in Ge/Ag/Mn trilayers: Structural and magnetic studies
Место публикации : J. Solid State Chem. - 2017. - Vol. 246. - P.379-387. - ISSN 00224596 (ISSN), DOI 10.1016/j.jssc.2016.12.010
Примечания : Cited References: 64. - This study was supported by the Russian Foundation for Basic Research (RFBR) (Grants # 15-02-00948-a, # 16-03-00069-a), by the Council for Grants of the President of the Russian Federation (SP-1373.2016.3), and by the program of Foundation for Promotion of Small Enterprises in Science and Technology (“UMNIK” program) # 6650GU/2015. The reported study was funded by RFBR and Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project #, 16-42-243006. The XPS and TEM studies were carried out using the facilities of the Performance Service at Krasnoyarsk Scientific Center.
Ключевые слова (''Своб.индексиров.''): long-range atomic transfer--mn-ge system--thin-film solid-state reaction--diffusion barrier--dominant diffusing species--first phase--mn5ge3 alloy
Аннотация: The thin-film solid-state reaction between elemental Ge and Mn across chemically inert Ag layers with thicknesses of (0, 0.3, 1 and 2.2 µm) in Ge/Ag/Mn trilayers was studied for the first time. The initial samples were annealed at temperatures between 50 and 500 °C at 50 °C intervals for 1 h. The initiation temperature of the reaction for Ge/Mn (without a Ag barrier layer) was ~ 120 °C and increased slightly up to ~ 250 °C when the Ag barrier layer thickness increased up to 2.2 µm. In spite of the Ag layer, only the ferromagnetic Mn5Ge3 compound and the Nowotny phase were observed in the initial stage of the reaction after annealing at 500 °C. The cross-sectional studies show that during Mn5Ge3 formation the Ge is the sole diffusing species. The magnetic and cross-sectional transmission electron microscopy (TEM) studies show an almost complete transfer of Ge atoms from the Ge film, via a 2.2 µm Ag barrier layer, into the Mn layer. We attribute the driving force of the long-range transfer to the long-range chemical interactions between reacting Mn and Ge atoms. © 2016 Elsevier Inc.
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gerasimov V. S., Ershov A. E., Karpov S. V., Gavrilyuk A. P., Zakomirnyi V. I., Rasskazov I. L., Agren H., Polyutov S. P.
Заглавие : Thermal effects in systems of colloidal plasmonic nanoparticles in high-intensity pulsed laser fields [Invited]
Место публикации : Opt. Mater. Express: Optical Society of America, 2017. - Vol. 7, Is. 2. - P.555-568. - ISSN 21593930 (ISSN), DOI 10.1364/OME.7.000555
Примечания : Cited References: 68. - This work was performed within the State contract of the RF Ministry of Education and Science for Siberian Federal University for scientific research in 2017-2019 and SB RAS Program No II.2P (0358-2015-0010). The calculations were performed using the MVS-1000 M cluster at the Institute of Computational Modeling, Federal Research Center KSC SB RAS.
Ключевые слова (''Своб.индексиров.''): aggregates--gold--nanoparticles--plasmons--silver--ag nanoparticle--high intensity--light-induced process--nanoparticle aggregate--physical model--plasmonic nanoparticle--pulsed-laser field--thermal interaction--pulsed lasers
Аннотация: We have studied light induced processes in nanocolloids and composite materials containing ordered and disordered aggregates of plasmonic nanoparticles accompanied by their strong heating. A universal comprehensive physical model that combines mechanical, electrodynamical, and thermal interactions at nanoscale has been developed as a tool for investigations. This model was used to gain deep insight on phenomena that take place in nanoparticle aggregates under high-intensity pulsed laser radiation resulting in the suppression of nanoparticle resonant properties. Verification of the model was carried out with single colloidal Au and Ag nanoparticles and their aggregates. © 2017 Optical Society of America.
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18.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Petrov D. A., Ivantsov R. D., Zharkov S. M., Lin C.-R., Tso C.-T., Hsu N.-S., Tseng Y.-T.
Заглавие : The Ag inclusion effect in MCD and magnetic properties of Fe3O4 nanoparticles synthesized with chemical method
Коллективы : Moscow International Symposium on Magnetism, Московский государственный университет им. М.В. Ломоносова, Российский фонд фундаментальных исследований
Место публикации : Moscow Int. Symp. on Magnet. (MISM-2017): 1-7 July 2017 : book of abstracts. - 2017. - Ст.2PO-J-34. - P.287
Примечания : Cited References: 3. - The research was carried out with the support of the President of Russia Grant NSh-7559.2016.2
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mikhlin Y. L., Vorobyev S. A., Saikova S. V., Vishnyakova E. A., Romanchenko A. S., Zharkov S. M., Larichev Y. V.
Заглавие : On the nature of citrate-derived surface species on Ag nanoparticles: Insights from X-ray photoelectron spectroscopy
Место публикации : Appl. Surf. Sci.: Elsevier Science, 2018. - Vol. 427. - P.687-694. - ISSN 01694332 (ISSN), DOI 10.1016/j.apsusc.2017.09.026
Примечания : Cited References: 50. - We thank the Russian-German bilateral program “Russian-German laboratory at BESSY II” and the staff of the RGLab and HZB for their kind assistance with XANES experiments.
Ключевые слова (''Своб.индексиров.''): silver nanoparticles--adsorption--citrate capping--x-ray photoelectron spectroscopy
Аннотация: Citrate is an important stabilizing, reducing, and complexing reagent in the wet chemical synthesis of nanoparticles of silver and other metals, however, the exact nature of adsorbates, and its mechanism of action are still uncertain. Here, we applied X-ray photoelectron spectroscopy, soft X-ray absorption near-edge spectroscopy, and other techniques in order to determine the surface composition and to specify the citrate-related species at Ag nanoparticles immobilized from the dense hydrosol prepared using room-temperature reduction of aqueous Ag+ ions with ferrous ions and citrate as stabilizer (Carey Lea method). It was found that, contrary to the common view, the species adsorbed on the Ag nanoparticles are, in large part, products of citrate decomposition comprising an alcohol group and one or two carboxylate bound to the surface Ag, and minor unbound carboxylate group; these may also be mixtures of citrate with lower molecular weight anions. No ketone groups were specified, and very minor surface Ag(I) and Fe (mainly, ferric oxyhydroxides) species were detected. Moreover, the adsorbates were different at AgNPs having various size and shape. The relation between the capping and the particle growth, colloidal stability of the high-concentration sol and properties of AgNPs is briefly considered. © 2017 Elsevier B.V.
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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Овчинников, Сергей Геннадьевич
Заглавие : Прямое наблюдение антиферромагнитных вихрей в дисках Co/Fe/Ag (001)
Место публикации : ПерсТ. - 2011. - т. 18, вып. 8. - С. 5
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