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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Karpov I.V., Fedorov L. Yu, Abkaryan A.K., Zharkov S. M., Molokeev M. S., Ivanenko A. A., Nemtsev I. V., Irtyugo L.A.
Заглавие : Resistive switching properties of a nanostructured layer of mixed ZrO2 phases obtained in low-pressure arc discharge plasma
Колич.характеристики :9 с
Место публикации : Vacuum. - 2024. - Vol. 227. - Ст.113375. - ISSN 0042207X (ISSN), DOI 10.1016/j.vacuum.2024.113375. - ISSN 18792715 (eISSN)
Примечания : Cited References: 34. - The work was performed with a support of the grant of the Russian Science Foundation (Project No. 24-29-00374, https://rscf.ru/project/24-29-00374/)
Аннотация: The controlled vacuum-arc synthesis of zirconium dioxide (ZrO2) nanoparticles is considered, which makes it possible to regulate the percentage ratio of the monoclinic and tetragonal phases. The samples were characterized using XRD analysis, SEM, HRTEM analysis, FT-IR analysis, TG/DTA analysis and EPR spectroscopy. It has been established that the formation of the tetragonal phase is associated with the formation of a large number of oxygen vacancies formed due to high-speed quenching of nanoparticles. Reducing the operating gas pressure in a vacuum chamber from 180 Pa to 30 Pa makes it possible to obtain nanoparticles up to 2 nm in size. The synthesized ZrO2 nanoparticles do not contain foreign impurities and when heated, the weight loss is up to 7 %. The process of local resistive switching in the contact of an atomic force microscope (AFM) probe to a nanostructured ZrO(2-x) layer on a conducting substrate has been studied. Cyclic current-voltage characteristics demonstrate the existence of stable states of high and low resistance, switched by changing the polarity of the applied voltage. The coexistence of the m- and t-ZrO2 phases (and the resulting oxygen nonstoichiometry in the interboundary regions) provides conditions for the formation/destruction of a filament from oxygen vacancies, which determine the conductivity of the dielectric in the LRS state.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Denisova E. A., Chekanova L. A., Komogortsev S. V., Iskhakov R. S., Vazhenina I. G., Nemtsev I. V., Li O. A.
Заглавие : Ferromagnetic resonance and magnetic anisotropy of 3d-metal wires with composition gradients
Колич.характеристики :5 с
Место публикации : Bull. Russ. Acad. Sci.: Phys. - 2024. - Vol. 88, Is. 4. - P.531-535. - ISSN 10628738 (ISSN), DOI 10.1134/S1062873823706244. - ISSN 19349432 (eISSN)
Примечания : Cited References: 13
Аннотация: Results are presented from investigating the ferromagnetic resonance spectra of arrays of Co‒Ni and Co‒Fe‒Ni wires with different composition gradients, deposited into polycarbonate track-etched membranes. The effect interfaces and concentration gradients have on the effective fields of the investigated wires is examined. An anomalous angular dependence of the fields of ferromagnetic resonance is observed for the wire arrays at a pore density of ~18% in the membrane.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Денисова, Елена Александровна, Чеканова, Лидия Александровна, Важенина, Ирина Георгиевна, Комогорцев, Сергей Викторович, Исхаков, Рауф Садыкович, Великанов, Дмитрий Анатольевич, Кох Д., Немцев, Иван Васильевич
Заглавие : Магнитоструктурные исследования высокоэнтропийных сплавов FeCoNiP-Me (Me = Zn, Zr, W), полученных методом химического осаждения
Коллективы : "Новое в магнетизме и магнитных материалах", международная конференция, Научный совет по физике конденсированных сред РАН, МИРЭА - Российский технологический университет, Московский государственный университет им. М.В. Ломоносова, Магнитное общество России
Место публикации : Новое в магнетизме и магнитных материалах: сборник трудов XXV международной конференции/ прогр. ком.: Р. С. Исхаков, С. Г. Овчинников [и др.]. - 2024. - Секция 1 [Сборник 1]: Новые магнитные и родственные им материалы: синтез и физические свойства. Преподавание по разделам «Магнетизм» и «Магнитные материалы» в высшей школе. - С. 121-124. - ISBN 978-5-4465-1869-2
Примечания : Библиогр.: 3
Аннотация: В работе представлены результаты исследования микроструктуры и магнитных свойств наноструктурированных покрытий из высокоэнтропийных сплавов FeCoNiP-Me (Me = Zn, Zr, W), синтезированных методом химического осаждения. Фазово-структурное состояние покрытий исследовано методами рентгеновской дифракции и электронной микроскопии. Магнитные характеристики синтезированных материалов (намагниченность насыщения, коэрцитивная сила, поле локальной анизотропии), исследованы как функции содержания Zn, Zr или W в сплаве FeCoNiP-Me. Магнитные свойства обсуждаются в рамках модели случайной магнитной анизотропии. Определены граничные значения энтропии и энтальпии смешения, способствующие формированию неупорядоченного твердого раствора при получении высокоэнтропийных сплавов на основе FeCoNiP методом химического осаждения.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vazhenina I. G., Stolyar S. V., Komogortsev S. V., Li O. A., Iskhakov R. S., Velikanov D. A., Cheremiskina E. V., Nemtsev I. V.
Заглавие : Nanostructured coatings of 3d-metals produced by green chemistry methods: Analysis of inhomogeneities by static and dynamic magnetic methods
Колич.характеристики :8 с
Место публикации : Phys. Met. Metallogr. - 2024. - Vol. 125, Is. 4. - P.363-370. - ISSN 0031918X (ISSN), DOI 10.1134/S0031918X24600088. - ISSN 15556190 (eISSN)
Примечания : Cited References: 30. - The research was conducted as part of the scientific topic of the State Assignment of the Federal Research Center Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences
Аннотация: The study investigates carbon-containing coatings of 3d-metals (Ni, Co, Fe) produced by chemical deposition method using arabinogalactan. The coatings were analyzed using X-ray diffraction, FMR, and M(H) magnetometry. Measurement of M(H) in plane and perpendicular to the plane of the magnetic coatings allowed determining the distribution of demagnetizing factor in the studied coatings. The obtained distributions of the demagnetizing factor were used to analyze the angular dependences of the ferromagnetic resonance field. The values of magnetization and perpendicular anisotropy field were estimated. The paper illustrates the effect of texture on the magnetic parameters.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Чеканова, Лидия Александровна, Денисова, Елена Александровна, Комогорцев, Сергей Викторович, Важенина, Ирина Георгиевна, Исхаков, Рауф Садыкович, Бондаренко, Галина Николаевна, Кох Д., Великанов, Дмитрий Анатольевич, Немцев, Иван Васильевич, Еремин, Леонид Аркадьевич
Заглавие : Микроструктура и магнитные свойства высоко энтропийных сплавов FeCoNiP-Me (Me=Zn, Zr, W), полученных методов химического осаждения
Коллективы : Байкальская международная конференция "Магнитные материалы. Новые технологии", "Магнитные материалы. Новые технологии", Байкальская международная конференция, "Magnetic materials. New tecnologies", Baikal International Conference, Иркутский государственный университет
Место публикации : Магнитные материалы. Новые технологии: тез. докл. IX Байкал. междунар. конф. BICMM-2023/ чл. прогр. ком.: S. S. Aplesnin [et al.] ; чл. орг. ком. R. S. Iskhakov [et al.]. - Иркутск, 2023. - С. 125-126. - ISBN 978-5-962402178-0, DOI 10.26516/978-5-9624-2178-0.2023.1-207
Примечания : Библиогр.: 4
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Denisova E. A., Chekanova L. A., Komogortsev S. V., Iskhakov R. S., Li O. A, Sukhachev A. L., Velikanov D. A., Nemtsev I. V.
Заглавие : Magnetic anisotropy of nanostructured Fe-Ni-C coating produced by electroless deposition
Колич.характеристики :5 с
Коллективы : Nanophysics and Nanoelectronics, International Symposium
Место публикации : Phys. Solid State. - 2023. - Vol. 65, Is. 6. - P.851-855. - ISSN 10637834 (ISSN), DOI 10.21883/PSS.2023.06.56090.14H. - ISSN 10906460 (eISSN)
Примечания : Cited References: 20. - The study was done with financial support from the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory and the Krasnoyarsk Regional Fund of Science within scientific project No. 20-43-240003
Аннотация: The structural and magnetic properties of nanostructured Fe100–xNix-C (0 ˂ x ˂ 100) coatings produced by electroless plating with different carbohydrates as reducing agents have been investigated. The phase-structural state of the films was studied by diffraction and electron microscopy. The Ni concentration ranges of FCC and BCC phases existence in electroless deposited films were determined. The surface morphology, saturation magnetization, local magnetic anisotropy field and coercivities of films are dependent on the iron content and type of reducing agent. The correlation between coercivity Hc and the anisotropy field of the magnetic stochastic domain which were established by correlation magnetometry suggests that the magnitude of Hc is mainly determined by this anisotropy.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Krasnov A. I., Pankin P. S., Buzin D. S., Romanenko G. A., Sutormin V. S., Zelenov F. V., Masyugin A. N., Volochaev M. N., Vetrov S. Ya., Timofeev I. V.
Заглавие : Voltage-tunable Q factor in a photonic crystal microcavity
Место публикации : Opt. Lett. - 2023. - Vol. 48, Is. 7. - P.1666-1669. - ISSN 01469592 (ISSN), DOI 10.1364/OL.479431. - ISSN 15394794 (eISSN)
Примечания : Cited References: 52. - The authors are grateful to Dmitrii N. Maksimov and Sergey A. Myslivets for fruitful discussions. The authors thank the Krasnoyarsk Regional Center of Research Equipment of FRC KSC SB RAS for providing the equipment. This study was supported by the Russian Science Foundation, project no. 22-22-00687
Аннотация: A photonic crystal microcavity with a tunable quality factor (Q factor) has been implemented on the basis of a bound state in the continuum using the advanced liquid crystal cell technology platform. It has been shown that the Q factor of the microcavity changes from 100 to 360 in the voltage range of 0.6 V.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Андрющенко, Татьяна Александровна, Лященко, Сергей Александрович, Варнаков, Сергей Николаевич, Овчинников, Сергей Геннадьевич, Шевцов, Дмитрий Валентинович, Яковлев, Иван Александрович, Максимова, Ольга Александровна
Заглавие : Автоматизация системы импульсного лазерного напыления тонких пленок max-фаз
Коллективы : Байкальская международная конференция "Магнитные материалы. Новые технологии", "Магнитные материалы. Новые технологии", Байкальская международная конференция, "Magnetic materials. New tecnologies", Baikal International Conference, Иркутский государственный университет
Место публикации : Магнитные материалы. Новые технологии: тез. докл. IX Байкал. междунар. конф. BICMM-2023/ чл. прогр. ком.: S. S. Aplesnin [et al.] ; чл. орг. ком. R. S. Iskhakov [et al.]. - Иркутск, 2023. - С. 104-105. - ISBN 978-5-962402178-0, DOI 10.26516/978-5-9624-2178-0.2023.1-207
Примечания : Библиогр.: 4
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Andryushchenko T. A., Lyashchenko S. A., Varnakov S. N., Lukyanenko A. V., Nemtsev I. V., Yakovlev I. A., Shevtsov D. V., Maximova O. A., Ovchinnikov S. G.
Заглавие : Auger electron spectroscopy of thin Cr2GeC films
Колич.характеристики :7 с
Место публикации : Phys. Met. Metallogr. - 2023. - Vol. 124, Is. 14. - P.1776-1782. - ISSN 0031918X (ISSN), DOI 10.1134/S0031918X2360135X. - ISSN 15556190 (eISSN)
Примечания : Cited References: 33. - The research was supported by the Russian Science Foundation (grant no. 21-12-00226, http://rscf.ru/project/21-12-00226/)
Аннотация: Auger electron spectroscopy was used to determine the phase composition of Cr2GeC MAX phase thin films. A distinctive feature of the formation of carbon-containing MAX phases is the shape of carbon Auger peaks, which is characteristic of metal carbides spectra. Features of the Auger spectra in the presence of secondary phases of chromium germanides are found. Their presence can manifest itself in an increase in the energy of the germanium peaks, which is caused by a chemical shift during the formation of the Cr–Ge bond. Moreover, we have detected the accumulation of electronic charge, which can be explained by the features of the surface morphology.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Chzhan A. V., Orlov V. A., Volochaev M. N.
Заглавие : Interlayer interaction and coercivity of three-layer films obtained bу chemical deposition
Колич.характеристики :5 с
Место публикации : Phys. Met. Metallogr. - 2023. - Vol. 124, Is. 10. - P.961-965. - ISSN 0031918X (ISSN), DOI 10.1134/S0031918X23601804. - ISSN 15556190 (eISSN)
Примечания : Cited References: 21. - We are grateful to S.Ya. Kiparisov for the provided samples
Аннотация: The results of experimental and theoretical studies of the coercivity and the dipole coupling field of the hysteresis loop on the thickness of the nonmagnetic interlayer in magnetic films, which are obtained via chemical deposition, are presented. Using model calculations based on the Landau–Ginzburg equations, the exchange interactions between magnetic layers with the participation of atoms from the nonmagnetic interlayer are studied. The resulting expression for the dipole coupling field describes well the exponential changes in the dipole coupling field as a function of the interlayer thickness in structures with both soft magnetic layers and layers with significantly different values of the coercivity.
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11.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Lyashchenko S. A., Andryushchenko T. A., Yakovlev I. A., Lukyanenko A. V., Shevtsov D. V., Varnakov S. N., Ovchinnikov S. G.
Заглавие : Features of (Cr1-xMnx)2GeC thin film magnetron deposition
Коллективы : International Baltic Conference on Magnetism, Балтийский федеральный университет им. И. Канта
Место публикации : V International Baltic Conference on Magnetism. IBCM: Book of abstracts. - 2023. - P.49
Примечания : Cited References: 3. - РНФ № 21-12-00226
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Denisova E. A., Chekanova L. A., Komogortsev S. V., Satsuk S. A., Nemtsev I. V., Iskhakov R. S., Semenov S. V.
Заглавие : Magnetic properties of three-dimensional metal rods with composition gradients produced by electroless deposition
Место публикации : IEEE Magn. Lett. - 2022. - Vol. 13. - Ст.6103405. - ISSN 1949307X (ISSN), DOI 10.1109/LMAG.2022.3163015
Примечания : Cited References: 30. - This work was supported in part by the Russian Foundation for Basic Research (RFBR), Krasnoyarsk Territory and in part by the Krasnoyarsk Regional Fund of Science under Grant 20-43-240003. The authors thank the Center of Collective Use of the Federal Research Center Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences for the equipment. Sergey V. Komogortsev thank the RFBR, Krasnoyarsk Region and the Krasnoyarsk Regional Science Foundation (Project 20-42-240001) for the support in the contribution of numerical simulation. The authors also thank V. S. Plotnikov and V. V. Tkachev for electron microscopy images
Аннотация: A comparative study of the magnetic properties of arrays of Co–Ni rods with different composition gradients (smooth or step-like) along the rod axes was carried out. Ordered arrays of Co–Ni nanorods with diameters up to 400 nm and 8 µm length were prepared by electroless plating into a porous nuclear-track-etched polycarbonate membrane. The gradient in Co and Ni composition was confirmed by energy-dispersive X-ray analysis. The variation of Co–Ni contents along the long axis of the rods correlates with the gradient of the magnetization within the rod. Magnetization reversal was studied by analyzing the angular dependence of coercivity and using micromagnetic simulations. For both types of gradient rods, reversal occurs by curling. The local magnetic anisotropy field of rods with a step-type gradient is significantly higher than that for rods with a smooth gradient.
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Chzhan A. V., Podorozhnyak S. A., Gromilov S. A., Patrin G. S., Moroz J. M.
Заглавие : Effect of crystal size on the crystalline structure and magnetic properties of cobalt films obtained via chemical deposition
Место публикации : Bull. Russ. Acad. Sci. Phys. - 2022. - Vol. 86, Is. 5. - P.614-617. - ISSN 10628738 (ISSN), DOI 10.3103/S1062873822050045
Примечания : Cited References: 18
Аннотация: A study is performed of the relationship between the sizes of cobalt crystallites and the coercive and anisotropic properties of Co–P films obtained via chemical deposition. The emergence of induced anisotropy in films obtained at low pH (7.2–8.7) is due to size effects that transform the cobalt’s crystal lattice from face-centered cubic to hexagonal close-packed as the film grows in a magnetic field.
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Stolyar S. V., Vazhenina I. G., Yaroslavtsev R. N., Chekanova L. A., Cheremiskina E., Mikhlin Y.
Заглавие : Magnetic composite coatings FeC and NiC synthesized with arabinogalactan
Место публикации : IEEE Magn. Lett. - 2022. - Vol. 13. - Ст.2503505. - ISSN 1949307X (ISSN), DOI 10.1109/LMAG.2022.3164631
Примечания : Cited References: 23. - This work was supported by Russian Foundation for Basic Research, Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science under Project 20-42-240010. The authors thank the Center of Collective Use of the Federal Research Center, Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences for the provided equipment
Аннотация: In this work, we investigated the ferromagnetic resonance spectra of metal/carbon composite coatings. FeC and NiC coatings were synthesized by electroless deposition using polysaccharide arabinogalactan. An analysis of the angular dependences of the resonance field showed that the coatings consist of three magnetic phases separated by a nonmagnetic phase of carbon.
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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Denisova E. A., Chekanova L. A., Komogortsev S. V., Rautsky M. V., Nemtsev I. V., Iskhakov R. S., Plotnikov V. S., Tkachev V. V., Li O. A., Dolgopolova M. V.
Заглавие : Core-shell and bi-segmented cobalt-nickel nanorods prepared by electroless deposition
Место публикации : IEEE Trans. Magn. - 2022. - Vol. 58, Is. 2. - Ст.2300805. - ISSN 00189464 (ISSN), DOI 10.1109/TMAG.2021.3098747
Примечания : Cited References: 27. - This work was funded by RFBR, Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science, project number 20-43-240003. The authors thank the Krasnoyarsk Regional Center of Research Equipment of Federal Research Center“ Krasnoyarsk Science Center SB RAS” for the provided equipment
Аннотация: A porous polymer loaded with segmented nanorods of magnetic metal is very promising for the design of novel microwave devices. Arrays of bi-segmented Ni/Co and core-shell Ni@Co rods were prepared by electroless deposition into porous of polycarbonate track etched membrane. An intrinsic effective magnetic field of the magnetic composite nanorods aligned in the nonmagnetic template was studied by magnetization curves and ferromagnetic resonance. The effect of the interface boundaries for two types of bi-segmented rods with coaxial and along-axis Co/Ni segmentation to effective field was established.
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Voronin, Anton S., Nemtsev I. V., Molokeev M. S., Simunin, Mikhail M., Kozlova, Ekaterina A., Markovskaya, Dina V., Lebedev, Denis V., Lopatin, Dmitry S., Khartov, Stanislav V.
Заглавие : Laser-induced chemical liquid-phase deposition plasmonic gold nanoparticles on porous TiO2 fIlm with great photoelectrochemical performance
Место публикации : Appl. Sci. - 2022. - Vol. 12, Is. 1. - Ст.30. - ISSN 2076-3417(eISSN), DOI 10.3390/app12010030
Примечания : Cited References: 35
Предметные рубрики: AU NANOPARTICLES
ELECTRODES
Аннотация: This paper considers the photoelectrochemical characteristics of a composite porous TiO2 thin film with deposited plasmonic gold nanoparticles. The deposition of gold nanoparticles was carried out by the laser-induced chemical liquid-phase deposition (LCLD) method. The structural characteristics of the composite have been studied; it has been shown that the porous TiO2 film has a lattice related to the tetragonal system and is in the anatase phase. Gold nanoparticles form on the surface of a porous TiO2 film. A complex of photoelectrochemical measurements was carried out. It was shown that the deposition of plasmonic gold nanoparticles led to a significant increase in the photocurrent density by ~820%. The proposed concept is aimed at testing the method of forming a uniform layer of plasmonic gold nanoparticles on a porous TiO2 film, studying their photocatalytic properties for further scaling, and obtaining large area Au/TiO2/FTO photoelectrodes, including in the roll-to-roll process.
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Baron F. A., Shanidze L. V., Rautskiy M. V., Mikhlin Yu. L., Lukyanenko A. V., Konovalov S. O., Zelenov F. V., Shvets P. V., Goikhman A. Yu., Volkov N. V., Tarasov A. S.
Заглавие : Titanium oxynitride thin films wide temperature range sensors
Место публикации : Tech. Phys. Lett. - 2022. - Vol. 48, Is. 10. - P.74-77. - ISSN 10637850 (ISSN), DOI 10.21883/TPL.2022.10.54805.19292. - ISSN 10906533 (eISSN)
Примечания : Cited References: 14. - This study was supported financially by the Russian Foundation for Basic Research, the Government of Krasnoyarsk Krai, and the Krasnoyarsk Krai Foundation of Science as part of scientific project No. 20-42-240013. The Rutherford backscattering study of samples was performed at Research and Education Center ” Functional Nanomaterials“ of the Baltic Federal University with financial support from the Ministry of Science and Higher Education of the Russian Federation (project FZWN-2020-0008)
Аннотация: The temperature dependence of the resistivity of titanium oxynitride TiNxOy thin films with different oxygen and nitrogen content obtained by atomic layer deposition was investigated. We found that the resistance of all films monotonically decreased with increasing temperature and varied within a wide range depending on the chemical composition and thickness of the film. The technology for obtaining a compact temperature sensor of wide range from helium to room temperature based on 40 nm thick TiN0.87O0.97 is presented.
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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Denisova E. A., Komogortsev S. V., Chekanova L. A., Neznakhin D. S., Iskhakov R. S., Nemtsev I. V.
Заглавие : Local magnetic anisotropy in nanostructured FeCo–C coatings synthesized by green chemistry methods
Место публикации : Phys. Solid State. - 2022. - Vol. 64, Is. 9. - P.1191-1195. - ISSN 10637834 (ISSN), DOI 10.21883/PSS.2022.09.54150.14HH. - ISSN 10906460 (eISSN)
Примечания : Cited References: 29. - The study was done with financial support from the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory and the Krasnoyarsk Regional Fund of Science within scientific project No. 20-43-240003
Аннотация: Fe–Co alloys attracting interest due to their high magnetic induction and Curie temperature, were synthesized by an eco friendly electroless deposition with carbohydrates as reducing agents. It was shown that Fe1–xCox–C composite coatings retain high induction, while demonstrating an unusual behavior of magnetization at low temperatures. It was found that for each coating measured at different temperatures, there is a correlation between the local magnetic anisotropy constant K at a given temperature and the correlation radius of the local easy magnetization axis Rc. The functional type of this correlation is typical for nanoparticles or nanogranules in a composite, which made it possible to estimate the volume and surface magnetic anisotropy constants of metal granules of FeCo–C coatings.
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Chekanova L. A., Shepeta N. A., Denisova E. A., Iskhakov R. S., Kuzovnikova L. A., Nemtsev I. V.
Заглавие : Comparison of the microstructure and magnetic properties of films and composite powders based on 3-D metal
Место публикации : J. Supercond. Novel Magn. - 2022. - Vol. 35, Is. 11. - P.3241-3247. - ISSN 15571939 (ISSN), DOI 10.1007/s10948-022-06339-w
Примечания : Cited References: 19. - This work was funded by the Russian Foundation for Basic Research, Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science, project number 20–43-240003
Аннотация: The comparison between the magnetic properties of materials with different curvature and spatial distribution of nanograins, such as particles (3D spatial distribution) and multilayer films (2D) was carried out. Functionally graded Co(P)/Ni(P) and Co(P)/CoNi(P) specimens have been fabricated by electroless deposition. The magnetic and structural properties are characterized by electron microscopy, X-ray diffraction, ferromagnetic resonance spectroscopy, and vibrating sample magnetometer. It was demonstrated that the interaction between the Ni(P) core and Co(P) shell of particles could form the functionally graded materials with tailored structure and coercive force. Furthermore, it was found that the magnetic parameters (the local anisotropy field, ferromagnetic resonance linewidth, and coercivity) are mainly determined by the artificially created interface boundaries for all grains’ spatial distribution. The magnetic anisotropy field and coercivity of Co(P)/Ni(P) flat films were characterized by lower values than those for spherical shell of particles with the same composition, produced by the same method.
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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Stolyar S. V., Chekanova L. A., Cheremiskina E. V., Yaroslavtsev R. N., Taran O. P., Borovkova V. S., Malyar Y. N., Neznakhin D. S., Komogortsev S. V.
Заглавие : Synthesis of transition metal coatings using arabinogalactan
Место публикации : Bull. Russ. Acad. Sci. Phys. - 2022. - Vol. 86, Is. 5. - P.597-600. - ISSN 10628738 (ISSN), DOI 10.3103/S1062873822050264
Примечания : Cited References: 19. - The study was supported by the Russian Foundation for Basic Research, the Government of the Krasnoyarsk Territory, and the Krasnoyarsk Regional Science Foundation (project no. 20-43-240003)
Аннотация: Carbon-containing transition metal (Fe, Co, Ni) coatings are synthesized via chemical deposition with arabinogalactan. The crystal structure and chemical composition of the coatings are determined. Data from magnetometry and X-ray diffraction show that carbon is not included in the crystal lattice of a metal. Instead, it exists in the form of graphite inclusions. Degradation of arabinogalactan in an alkaline medium on the surface of a galvanic pair is investigated.
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