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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Moiseenko E. T., Altunin R. R., Zharkov S. M.
Заглавие : In situ electron diffraction and resistivity characterization of solid state reaction process in Cu/Al bilayer thin films
Место публикации : Metall. Mat. Trans. A. - 2020. - Vol. 51, Is. 3. - P.1428-1436. - ISSN 10735623 (ISSN), DOI 10.1007/s11661-019-05602-5
Примечания : Cited References: 52. - The authors wish to thank the financial support from the Russian Science Foundation (Grant #18-13-00080)
Аннотация: Solid state reaction processes in Cu/Al thin films have been studied using the methods of in situ electron diffraction and electrical resistivity measurements. The solid state reaction in the Cu/Al thin films has been found to begin already at 88 °C with the formation of the Al2Cu phase in the process of thermal heating in vacuum. The phase sequence at the solid state reaction in the films under study has been determined to be the following: Al2Cu → AlCu → Al4Cu9. A model has been suggested for describing the initial formation stage of intermetallic compounds at the solid state reaction in Cu/Al thin films. According to this model, at the initial stage, the intermetallic compounds are formed as separate crystallites at the interface in the Cu/Al thin films. The suggested model can be applied both to the formation of the first phase, Al2Cu, and to the subsequent phases: AlCu and Al4Cu9. For the Al4Cu9 phase the temperature coefficient of the electrical resistivity has been determined to be equal to αAl4Cu9= 1.1 × 10−3 K−1.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Samoshkina Yu. E., Rautskii M. V., Neznakhin D. S., Stepanova E. A., Andreev N., Chichkov V. I.
Заглавие : Inhomogeneity of magnetic states in polycrystalline Sr doped PrMnO3 films
Коллективы : 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", "Trends in MAGnetism", Euro-Asian Symposium
Место публикации : 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.H.P10. - P.88-89. - ISBN 978-5-9500855-7-4 (Шифр В33/E12-125657784)
Примечания : Cited References: 3
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Chekanova L. A., Denisova E. A., Komogortsev S. V., Iskhakov R. S., Nemtsev I. V., Volochaev M. N.
Заглавие : Nanocomposite FeCo films based on arabinogalactan: synthesis and magnetic properties
Коллективы : 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", "Trends in MAGnetism", Euro-Asian Symposium
Место публикации : 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.J.P36. - P.250-251. - ISBN 978-5-9500855-7-4 (Шифр В33/E12-125657784)
Примечания : Cited References: 5. - This work was supported by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project No. 18-42-240006
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zhigalov V. S., Bykova L. E., Myagkov V. G., Pavlova A. N., Volochaev M. N., Matsynin A. A., Patrin G. S.
Заглавие : CoPt-Al2O3 nanocomposite films: synthesis, structure, and magnetic properties
Коллективы : Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Government of Krasnoyarsk Territory; Krasnoyarsk Regional Fund of Science [18-42-243009 r_mol_a, 19-43-240003 r_a]; Foundation for Assistance to Small Innovative Enterprises in Science and Technology [11843GU/2017, 0033636]
Место публикации : J. Surf. Ingestig. - 2020. - Vol. 14, Is. 1. - P.47-53. - ISSN 1027-4510, DOI 10.1134/S102745102001022X. - ISSN 1819-7094(eISSN)
Примечания : Cited References: 29. - This study was supported by the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science to the research projects no. 18-42-243009 r_mol_a and no. 19-43-240003 r_a, and the Foundation for Assistance to Small Innovative Enterprises in Science and Technology, contract no. 11843GU/2017, code 0033636, U.M.N.I.K. competition.
Предметные рубрики: SOLID-STATE SYNTHESIS
GRANULAR THIN-FILMS
THERMITE SYNTHESIS
PHASE
Аннотация: The structure and magnetic properties of CoPt–Al2O3 nanocomposite films synthesized by the annealing of Al/(Co3O4 + Pt) bilayers on a MgO(001) substrate at 650°C in vacuum are investigated. The synthesized composite films contain ferromagnetic CoPt grains with an average size of 25–45 nm enclosed in a nonconducting Al2O3 matrix. The saturation magnetization (Ms ~ 330 G) and coercivity (Hc ≈ 6 kOe) of the films are measured in the film plane and perpendicular to it. The obtained films are characterized by a spatial rotational magnetic anisotropy, which makes it possible to arbitrarily set the easy magnetization axis in the film plane or perpendicular to it using a magnetic field stronger than the coercivity (H ˃ Hc).
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Altunin R. R., Moiseenko E. T., Zharkov S. M.
Заглавие : Structural phase transformations during a solid-state reaction in a bilayer Al/Fe thin-film nanosystem
Место публикации : Phys. Solid State. - 2020. - Vol. 62, Is. 1. - P.200-205. - ISSN 10637834 (ISSN), DOI 10.1134/S1063783420010059
Примечания : Cited References: 36. - This study was supported by the Russian Foundation for Basic Research, project no. 18-03-01173a
Аннотация: The processes of phase formation during a solid-state reaction between Fe and Al nanolayers have been investigated by the in situ electron diffraction method. It is established that the solid-state reaction at the interface between iron and aluminum nanolayers begins at ≈100°C with the formation of a disordered Al solid solution in α-Fe. It is shown that intermetallic phases (FeAl6 and/or Fe2Al5, FeAl, and Fe3Al) are successively formed upon further heating.
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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Volochaev M. N., Zhilova O. V., Pankov S. Yu., Sitnikov A. V., Makagonov V. A., Babkina I. V.
Заглавие : The structure, electrical and magnetoresistance properties of heterogeneous films [In2O3/(Co40Fe40B20)34(SiO2)66]92
Коллективы : International Young Researchers' Conference on Physics, Technologies and Innovation
Место публикации : AIP Conf. Proc. - 2019. - Vol. 2174: 6th International Young Researchers' Conference on Physics, Technologies and Innovation, PTI 2019 (20-23 May 2019) Conference code: 155607. - Ст.020274. - , DOI 10.1063/1.5134425
Примечания : Cited References: 11. - This work was supported by the Ministry of Education and Science of the Russian Federation as the project part of the state task (No 3.1867.2017/4.6)
Аннотация: The [In2O3/(Co40Fe40B20)34(SiO2)66]92 thin films were obtained by ion beam sputtering. X-ray and TEM studies of the structure and phase composition showed that the [In2O3/(Co40Fe40B20)34(SiO2)66]92 films characterized by multilayer structure, where (Co40Fe40B20)34(SiO2)66 nanocomposite layers and In2O3 spacers are amourphous. It is shown that the introduction of In2O3 spacers in (Co40Fe40B20)34(SiO2)66 nanocomposite leads to decreasing in specific resistance due to creation continues conductivity layers of low-resistance In2O3. All investigated samples characterized by the presence of magnetoresistance both at 77 K and at room temperature, which is characteristic of ferromagnetic metal-dielectric nanocomposites.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Loiko V. A., Zyryanov V. Ya., Konkolovich A. V., Miskevich A. A., Prishchepa O. O., Shabanov A. V., Krakhalev M. N.
Заглавие : Spectral dependences of transmittance and polarizing ability of stretched PDLC films with homogeneous and inhomogeneous interface anchoring
Коллективы : EuroDisplay international conference, Society for Information Displays, Белорусский государственный университет информатики и радиоэлектроники
Место публикации : EuroDisplay 2019: book of abstracts of International conference. - 2019. - Ст.O-9. - P.25
Примечания : Cited References: 2
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Izotov A. V., Belyaev B. A., Boev N. M., Solovev P. N.
Заглавие : Two-magnon scattering in nanocrystalline thin magnetic films
Коллективы : 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", "Trends in MAGnetism", Euro-Asian Symposium
Место публикации : 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. 1. - Ст.B.P13. - P.183. - ISBN 978-5-9500855-7-4 (Шифр В33/E12-125657784)
Примечания : Cited References: 2. - This work was supported by the Ministry of Education and Science of the Russian Federation, No RFMEFI60417X0179
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Gudim I. A., Demidov A. A., Eremin E. V., Shukla D. K.
Заглавие : Growth of Ho0,9Er0,1Fe3(BO3)4 from solutions based on Bi2MO3O12 and Li2WO4
Коллективы : Mechanisms and non-linear problems of nucleation and growth of crystals and thin films, International conference, "Механизмы и нелинейные проблемы нуклеации и роста кристаллов и тонких плёнок", международная конференция , Институт проблем машиноведения РАН
Место публикации : International conference "Mechanisms and non-linear problems of nucleation and growth of crystals and thin films" MGCTF'19: book of abstracts. - 2019. - P.
Примечания : Cited References: 6. - The study was supported by the Russian Foundation for Basic Research, projects no. 17-02-00826, 17-52-45091 and 18-02-00696
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10.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Chzhan A. V., Podorozhnyak S. A., Rudenko R. Yu.
Заглавие : Influence of solid acidity on growth kinetics, structure and magnetic properties of CoP films during chemical deposition
Коллективы : 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", "Trends in MAGnetism", Euro-Asian Symposium
Место публикации : 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.J.P38. - P.254-255. - ISBN 978-5-9500855-7-4 (Шифр В33/E12-125657784)
Примечания : Cited References: 3
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11.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Krakhalev M. N., Prishchepa O. O., Feyzer K. A., Sutormin V. S., Loiko V. A., Konkolovich A. V., Miskevich A. A., Zyryanov V. Ya.
Заглавие : Electro-optical response of PDLC films with conical boundary conditions
Коллективы : EuroDisplay international conference, Society for Information Displays, Белорусский государственный университет информатики и радиоэлектроники
Место публикации : EuroDisplay 2019: book of abstracts of International conference. - 2019. - Ст.O-31. - P.63
Примечания : Cited References: 3
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Lukyanenko A. V., Tarasov A. S., Shanidze L. V., Yakovlev I. A., Zelenov F. V., Masugin A. N., Ivanov A. B., Baron F. A., Volkov N. V.
Заглавие : Synthesis and transport properties of FET based on Heusler alloy thin films formed by rapid thermal annealing
Коллективы : International School and Conference on optoelectronics, photonics, engineering and nanostructures
Место публикации : J. Phys.: Conf. Ser. - 2019. - Vol. 1410. - Ст.012017. - ISSN 1742-6588, DOI 10.1088/1742-6596/1410/1/012017. - ISSN 1742-6596 (eISSN)
Примечания : Cited References: 10. - This study was supported by the Russian Foundation for Basic Research, project no. 17-02-00302 and supported in part by the Ministry of Education and Science of the Russian Federation and the Siberian Branch of the Russian Academy of Sciences, project II.8.70, and the Presidium of the Russian Academy of Sciences, Fundamental Research Program no. 32 «Nanostructures: Physics, Chemistry, Biology, Basics of Technologies».
Аннотация: In this work we show a preparation technique of Co2FeSi full-Heusler alloy thin films on silicon-on-insulator (SOI) substrates, employing rapid thermal annealing (RTA). The films of the Co2FeSi alloy were formed by a silicidation reaction, caused by RTA, between the ultrathin SOI (001) layer and the Fe/Co layers deposited on it. It is assumed that this technology is compatible with the process of formation of a half-metal source-drain in an advanced CMOS and SOI technology and will be applicable for the manufacture of a source-drain of a field-effect transistor. Schottky barrier field-effect transistors (FET) with a back-gate, based on silicon nanowires with source and drain of a Co2FeSi film, synthesized on an SOI substrate, were manufactured. The transport properties of the device were investigated.
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13.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Aplesnin S. S., Masyugin A. N., Sitnikov M. N., Stognij A. I., Ketsko V. A., Smirnova M. N.
Заглавие : Impedance and ir spectroscopy of films Ce3Fe5O12
Коллективы : 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", "Trends in MAGnetism", Euro-Asian Symposium
Место публикации : 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. 1. - Ст.E.P16. - P.448-449. - ISBN 978-5-9500855-7-4 (Шифр В33/E12-125657784)
Примечания : Cited References: 4. - The reported study was funded by Russian Foundation for Basic Research No. 19-08-00643, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science No. 18-42-240001 r_a, to the research project: “Inversion of the sign of the components of the magnetoelectric tensor on the temperature in films of bismuth garnet ferrite replaced by neodymium”
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Myagkov V. G., Ivanenko A. A., Bykova L. E., Zhigalov V. S., Volochaev M. N., Velikanov D. A., Matsynin A. A., Bondarenko G. N.
Заглавие : Solid-state synthesis, magnetic and structural properties of interfacial B2-FeRh(001) layers in Rh/Fe(001) films
Место публикации : Sci. Rep. - 2020. - Vol. 10, Is. 1. - Ст.10807. - ISSN 20452322 (ISSN), DOI 10.1038/s41598-020-67837-2
Примечания : Cited References: 65. - The authors thank L.A. Solovyov for their help on the orientation relationships measurements and I.V. Nemtsev for assisting with the measurements of the samples’ composition. This work was supported by RFBR together with the Government of the Krasnoyarsk Territory, the Krasnoyarsk Regional Fund of Science (project № 19-43-240003). The work is partially based upon the experiments performed on Krasnoyarsk Regional Center of Research Equipment of Federal Research Center «Krasnoyarsk Science Center SB RAS»
Предметные рубрики: Magnetic properties and materials
Аннотация: Here we first report results of the start of the solid-state reaction at the Rh/Fe(001) interface and the structural and magnetic phase transformations in 52Rh/48Fe(001), 45Rh/55Fe(001), 68Rh/32Fe(001) bilayers from room temperature to 800 °C. For all bilayers the non-magnetic nanocrystalline phase with a B2 structure (nfm-B2) is the first phase that is formed on the Rh/Fe(001) interface near 100 °C. Above 300 °C, without changing the nanocrystalline B2 structure, the phase grows into the low-magnetization modification αlʹ (MSl ~ 825 emu/cm3) of the ferromagnetic αʹ phase which has a reversible αlʹ ↔ αʺ transition. After annealing 52Rh/48Fe(001) bilayers above 600 °C the αlʹ phase increases in grain size and either develops into αhʹ with high magnetization (MSh ~ 1,220 emu/cm3) or remains in the αlʹ phase. In contrast to αlʹ, the αhʹ ↔ αʺ transition in the αhʹ films is completely suppressed. When the annealing temperature of the 45Rh/55Fe(001) samples is increased from 450 to 800 °C the low-magnetization nanocrystalline αlʹ films develop into high crystalline perfection epitaxial αhʹ(001) layers, which have a high magnetization of ~ 1,275 emu/cm3. αhʹ(001) films do not undergo a transition to an antiferromagnetic αʺ phase. In 68Rh/32Fe(001) samples above 500 °C non-magnetic epitaxial γ(001) layers grow on the Fe(001) interface as a result of the solid-state reaction between the epitaxial αlʹ(001) and polycrystalline Rh films. Our results demonstrate not only the complex nature of chemical interactions at the low-temperature synthesis of the nfm-B2 and αlʹ phases in Rh/Fe(001) bilayers, but also establish their continuous link with chemical mechanisms underlying reversible αlʹ ↔ αʺ transitions.
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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Tambasov I. A., Voronin A. S., Evsevskaya N. P., Kuznetsov, Yu M., Luk'yanenko A. V., Tambasova E. V., Gornakov M. O., Dorokhin, M., V, Loginov, Yu Yu
Заглавие : Experimental study of the thermal conductivity of single-walled carbon nanotube-based thin films
Коллективы : Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Government of the Krasnoyarsk Territory; Krasnoyarsk Territorial Foundation for Support of Scientific and RD Activity [18-42-243010]; Russian FederationRussian Federation [SP-2235.2019.1]
Место публикации : Phys. Solid State. - 2020. - Vol. 62, Is. 6. - P.1090-1094. - ISSN 1063-7834, DOI 10.1134/S1063783420060311. - ISSN 1090-6460(eISSN)
Примечания : Cited References: 21. - This study was supported by the Russian Foundation for Basic Research, the Government of the Krasnoyarsk Territory, and the Krasnoyarsk Territorial Foundation for Support of Scientific and R&D Activity, project Study of the Thermal Conductivity and Structural Features in Nanostructured Oxide Thin Films Promising for Thermoelectric Applications no. 18-42-243010 and the Scholarships of the President of the Russian Federation (SP-2235.2019.1).
Предметные рубрики: THERMOELECTRIC PROPERTIES
TRANSPORT-PROPERTIES
Аннотация: The single-walled carbon nanotube-based thin films with a thickness from 11 ± 3 to 157 ± 18 nm have been formed using vacuum filtration. The thermal conductivity of the thin films as a function of thickness and temperature up to 450 K has been studied by the 3ω technique. It has been found that, in the region of 49 nm, the supplied heat from a gold strip started propagating with the high efficiency to the thin film plane. The thermal conductivity of the thin films with a thickness of 49 ± 8 nm was measured using the 3ω technique for bulk samples. It has been found that the thermal conductivity of the single-walled carbon nanotube-based thin films strongly depends on their thickness and temperature. The thermal conductivity sharply (by a factor of ~60) increases with an increase in thickness from 11 ± 3 to 65 ± 4 nm. In addition, it has been observed that the thermal conductivity of the thin film with a thickness of 157 ± 18 nm rapidly decreases from 211 ± 11 to 27.5 ± 1.4 W m–1 K–1 at 300 and 450 K, respectively.
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Chepkasov I. V., Baidyshev V. S., Sukhanova E. V., Visotin M. A., Sule P., Popov Z. I.
Заглавие : Iron silicides formation on Si (100) and (111) surfaces through theoretical modeling of sputtering and annealing
Место публикации : Appl. Surf. Sci. - 2020. - Vol. 527. - Ст.146736. - ISSN 01694332 (ISSN), DOI 10.1016/j.apsusc.2020.146736
Примечания : Cited References: 67. - We thank Dr. Ivan Tarasov for fruitful discussions. The research is carried out using the equipment of the shared research facilities of HPC computing resources at Lomonosov Moscow State University and resources of the Center for the Information and Computing of Novosibirsk State University. The molecular dynamics study of sputtering and annealing iron silicides was supported by the Russian Science Foundation, project no. 16-13-00060-П. All quantum-chemical calculations were supported by Ministry of Education and Science of the Russian Federation in the framework of Increase Competitiveness Program of NUST “MISiS” (No. K2-2020-009)
Аннотация: The iron silicides formation during epitaxial film grown process on the (100) and (111) silicon surfaces were investigated using molecular dynamics (MD). The iron and silicon atom deposition rate and silicon substrate temperature influence on the formed iron silicide structure and stoichiometric composition were studied in detail. During the growth of iron silicide crystal structure significant diffusion of the substrate atoms into the forming BCC core occurs, this intensifies with the substrate temperature increase, and the ratio of substrate atoms inside the Fe3Si phase reaches nearly 12%. The BCC structure formation is less active on the (100) surface, and at the temperatures as low as 26 °C and 300 °C the iron silicide crystal phase does not form at all. However, with the temperature increase or the deposition rate decrease, the crystal structure formation processes occur more actively in both cases of (100) and (111) surfaces. Thus, the effect of the deposition rate decrease is identical to the temperature growth. It was shown that the formation of the structured B2 phase of iron silicide in buffer layer between the film and the substrate leads to the inhibition of the mutual diffusion of iron and silicon atoms.
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Podorozhnyak, Sergey A., Chzhant, Anatoly, V, Maltsevt, Vadim K., Krayuhin, Ivan N., Patrin G. S., Sakash, Irina Yu
Заглавие : Structural changes of Co caused a change of the solution pH during chemical deposition
Место публикации : J. Sib. Fed. Univ. Math. Phys. - 2020. - Vol. 13, Is. 4. - P.451-458. - ISSN 1997-1397, DOI 10.17516/1997-1397-2020-13-4-451-458; Журн. СФУ. Матем. и физика. - ISSN 2313-6022(eISSN)
Примечания : Cited References: 10
Предметные рубрики: COBALT
MICROSTRUCTURE
Аннотация: The phase transformations of the Co lattice are discussed, which determine the anomalous changes in the magnetic properties of chemically deposited Co-P films obtained at various pH values. The coercivity of the H-c films obtained at low pH values exceeds 1 kOe and decreases to several units Oe in the films obtained at high pH values. It is shown that the observed changes in the magnetic properties of Co-P films are caused by the transition of the cobalt crystal lattice to the nanocrystalline state.Обсуждаются фазовые превращения решетки Co, которые определяют аномальные изменения магнитных свойств химически осажденных пленок Co-P, полученных при различных значениях pH. Коэрцитивная сила пленок, полученных при низких значениях pH, превышает 1 кЭ и снижается до нескольких единиц Э в пленках, полученных при высоких значениях pH. Показано, что наблюдаемые изменения магнитных свойств пленок Co-P вызваны переходом кристаллической решетки кобальта в нанокристаллическое состояние.
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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bykova L. E., Myagkov V. G., Zhigalov V. S., Matsynin A. A., Velikanov D. A., Bondarenko G. N., Patrin G. S.
Заглавие : Magnetic and structure properties of CoPt-In2O3 nanocomposite films
Коллективы : Russian Foundation for Basic Research, Government of Krasnoyarsk Territory [19-43-240003]
Место публикации : J. Sib. Fed. Univ. Math. Phys. - 2020. - Vol. 13, Is. 4. - P.431-438. - ISSN 1997-1397, DOI 10.17516/1997-1397-2020-13-4-431-438; Журн. СФУ. Матем. и физика. - ISSN 2313-6022(eISSN)
Примечания : Cited References: 29. - This study was supported by the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science to the research projects no. 19-43-240003
Предметные рубрики: THIN-FILMS
TEMPERATURE
PHASE
Аннотация: The structural and magnetic properties of CoPt-In2O3 nanocomposite films formed by vacuum annealing of the In/(Co3O4 + Pt)/MgO film system in the temperature range of 100–800 °C have been investigated. The synthesized nanocomposite films contain ferromagnetic CoPt grains with an average size of 5nm enclosed in an In2O3 matrix, and have a magnetization of 600 emu/cm3, and a coercivity of 150 Oe at room temperature. The initiation 200 °C and finishing 800 °C temperatures of synthesis were determined, as well as the change in the phase composition of the In/(Co3O4 + Pt)/MgO film during vacuum annealing.Исследованы структурные и магнитные свойства нанокомпозитных пленок CoPt- In2O3, полученных вакуумным отжигом пленочной системы In/(Co3O4 + Pt)/MgO в интервале температур 100 – 800 °C. Синтезированные нанокомпозитные пленки содержали ферромагнитные CoPt-кластеры со средним размером 5 nm, заключенные в матрицу In2O3, и имели намагниченность 600 emu/cm3, коэрцитивную силу 150 Oe при комнатной температуре. Определены температуры начала 200 °C и окончания 800 °C синтеза, а также изменение фазового состава пленки In/(Co3O4 + Pt)/MgO при вакуумном отжиге.
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bhagat, Babli, Semisalova, Anna, Meckenstock, Ralf, Farle M.
Заглавие : Reversal of uniaxial magnetic anisotropy in Fe/GaAs (110) films driven by surface relaxation: An in situ ferromagnetic resonance study
Коллективы : Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)German Research Foundation (DFG) [RO 5030/2-1, 405553726-TRR 270]; Government of the Russian Federation [075-15-2019-1886]
Место публикации : AIP Adv. - 2020. - Vol. 10, Is. 7. - Ст.075219. - ISSN 2158-3226(eISSN), DOI 10.1063/5.0004261
Примечания : Cited References: 32. - This work was supported by Deutsche Forschungsgemeinschaft (DFG, German Research Foundation): Project Nos. RO 5030/2-1 and 405553726-TRR 270, and by the Government of the Russian Federation (Research Grant No. 075-15-2019-1886). The authors acknowledge Florian Romer for initial funding and training and are thankful to Benjamin Zingsem for helping in data fitting and to Ulf Wiedwald for AFM measurements.
Предметные рубрики: EPITAXIAL FE FILMS
GAAS(001)
GAAS
RECONSTRUCTION
LAYERS
Аннотация: We report an in situ study of the time evolution of magnetic anisotropy constants of an uncapped 4 nm [~ 27 monolayers (ML)] Fe film epitaxially grown on a GaAs (110) substrate at room temperature under ultra-high vacuum (UHV) conditions. The structural and chemical properties are monitored by low energy electron diffraction and Auger spectroscopy with a sensitivity of 0.01 ML. The in situ UHV ferromagnetic resonance (FMR) study over a period of 6 days in 10-9 Pa reveals that there is a slow magneto-morphological transition of the Fe film surface at room temperature. The resonance field measured in situ in the [110] direction initially changes at a rate of 0.3 mT/h within 30 h after deposition and later at 0.1 mT/h over 80 h. We determine the time-dependent changes in the in-plane and out-of-plane anisotropy constants and find a sign change in the uniaxial in-plane anisotropy in the first 24 h due to morphological changes at the surface. The in situ FMR measurements and the Auger analysis allow us to exclude changes in the magnetization and anisotropy due to the contamination and oxidation of the Fe film.
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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Visotin M. A., Tarasov I. A., Fedorov A. S., Varnakov S. N., Ovchinnikov S. G.
Заглавие : Prediction of orientation relationships and interface structures between α-, β-, γ-FeSi2 and Si phases
Коллективы : Russian Science FoundationRussian Science Foundation (RSF) [16-13-00060-Pi]
Место публикации : Acta Crystallogr. B. - 2020. - Vol. 76. - P.469-482. - ISSN 2052-5206(eISSN), DOI 10.1107/S2052520620005727
Примечания : Cited References: 85. - The following funding is acknowledged: Russian Science Foundation (grant No. 16-13-00060-Pi).
Предметные рубрики: THERMAL-EXPANSION
BETA-FESI2 FILMS
GROWTH
SILICON
DIFFRACTION
Аннотация: A pure crystallogeometrical approach is proposed for predicting orientation relationships, habit planes and atomic structures of the interfaces between phases, which is applicable to systems of low-symmetry phases and epitaxial thin film growth. The suggested models are verified with the example of epitaxial growth of α-, γ- and β-FeSi2 silicide thin films on silicon substrates. The density of near-coincidence sites is shown to have a decisive role in the determination of epitaxial thin film orientation and explains the superior quality of β-FeSi2 thin grown on Si(111) over Si(001) substrates despite larger lattice misfits. Ideal conjunctions for interfaces between the silicide phases are predicted and this allows for utilization of a thin buffer α-FeSi2 layer for oriented growth of β-FeSi2 nanostructures on Si(001). The thermal expansion coefficients are obtained within quasi-harmonic approximation from the DFT calculations to study the influence of temperature on the lattice strains in the derived interfaces. Faster decrease of misfits at the α-FeSi2(001)||Si(001) interface compared to γ-FeSi2(001)||Si(001) elucidates the origins of temperature-driven change of the phase growing on silicon substrates. The proposed approach guides from bulk phase unit cells to the construction of the interface atomic structures and appears to be a powerful tool for the prediction of interfaces between arbitrary phases for subsequent theoretical investigation and epitaxial film synthesis.
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