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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Stan S., Balasoiu M., Cristescu C. P., Stolyar S. V., Iskhakov R. S., Raikher Yu. L.
Заглавие : 2nd Fractional Brownian motion simulation for the fractal properties of ferryhidrite nanoparticles
Коллективы : "Complex and magnetic soft matter systems: physico-mechanical properties and structure", International summer school and workshop
Место публикации : 2nd International summer school and workshop complex and magnetic soft matter systems: physico-mechanical properties and structure: books of abstacs. - 2014. - P.78-79
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Iskhakov R. S., Kuzovnikova L. A., Komogortsev S. V., Denisova E. A., Balaev A. D., Mal'tsev V. K., Bondarenko G. N.
Заглавие : Accelerated mechanical alloying of mutually insoluble metals: Co-Cu system
Место публикации : Tech. Phys. Lett.: AMER INST PHYSICS, 2004. - Vol. 30, Is. 1. - P60-63. - ISSN 1063-7850, DOI 10.1134/1.1646717
Примечания : Cited References: 11
Предметные рубрики: SOLID-SOLUTIONS
P ALLOYS
POWDERS
Аннотация: We propose a new method for accelerating the process of mechanical alloying in the Co-Cu system possessing positive enthalpy of mixing and exhibiting no mutual solubility of components under equilibrium conditions. For this purpose, highly disperse powders of composite particles representing a Co-P amorphous alloy core covered with a nanocrystalline copper shell were prepared by chemical deposition. These composite powders were mechanically alloyed by processing in a ball mill. Investigation of the atomic structure and magnetic properties of the composite powders upon milling showed that the formation of supersaturated Co-Cu solid solutions under such conditions requires a much shorter milling time as compared to that for the conventional mechanical alloying processes. (C) 2004 MAIK "Nauka / Interperiodica".
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Komogortsev S. V., Vazhenina I. G., Kleshnina S. A., Iskhakov R. S., Lepalovskij V. N., Pasynkova A. A., Svalov A. V.
Заглавие : Advanced characterization of FeNi-based films for the development of magnetic field sensors with tailored functional parameters
Место публикации : Sensors. - 2022. - Vol. 22, Is. 9. - Ст.3324. - ISSN 14248220 (ISSN), DOI 10.3390/s22093324
Примечания : Cited References: 35. - This research was funded by the Russian Science Foundation (RSF), project no. 22-29-00980, https://rscf.ru/en/project/22-29-00980/ (accessed on 20 March 2022)
Аннотация: Magnetometry and ferromagnetic resonance are used to quantitatively study magnetic anisotropy with an easy axis both in the film plane and perpendicular to it. In the study of single-layer and multilayer permalloy films, it is demonstrated that these methods make it possible not only to investigate the average field of perpendicular and in-plane anisotropy, but also to characterize their inhomogeneity. It is shown that the quantitative data from direct integral and local measurements of magnetic anisotropy are consistent with the direct and indirect estimates based on processing of the magnetization curves. The possibility of estimating the perpendicular magnetic anisotropy constant from the width of stripe domains in a film in the transcritical state is demonstrated. The average in-plane magnetic anisotropy field of permalloy films prepared by magnetron sputtering onto a Corning glass is almost unchanged with the thickness of a single-layer film. The inhomogeneity of the perpendicular anisotropy field for a 500 nm film is greater than that for a 100 nm film, and for a multilayer film with a total permalloy thickness of 500 nm, it is greater than that for a homogeneous film of the same thickness.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Stolyar S. V., Li O. A., Nikolaeva E. D., Vorotynov A. M., Velikanov D. A., Knyazev Yu. V., Bayukov O. A., Iskhakov R. S., P’yankov V. F., Volochaev M. N.
Заглавие : An effective method of magnetic hyperthermia based on the ferromagnetic resonance phenomenon
Место публикации : Phys. Met. Metallogr. - 2023. - Vol. 124, Is. 2. - P.174-180. - ISSN 0031918X (ISSN), DOI 10.1134/S0031918X22601834. - ISSN 15556190 (eISSN)
Примечания : Cited References: 15. - This study was supported by grant no. 22-14-20020 from the Russian Science Foundation and the Krasnoyarsk Regional Fund for Support of Scientific and Technological Activities. The authors are grateful to the Krasnoyarsk Regional Center for Collective Use at Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, for providing their research facilities
Аннотация: Nickel and cobalt ferrite nanoparticles have been synthesized using the chemical precipitation method; the nanoparticle sizes were found to be 63 ± 22 and 26 ± 4 nm, respectively. The static hysteresis loops and Mossbauer spectra have been measured. It is shown that cobalt ferrite powders are magnetically harder than nickel ferrite powders. Ferromagnetic resonance (FMR) curves have been studied. It is found that the FMR absorption for cobalt ferrite is observed at room temperature and above. The time dependences of the nanoparticle warm-up under FMR conditions have been measured. The maximum temperature changes for nickel ferrite and cobalt ferrite particles are 8 and 11 K, respectively. Using the example of cobalt ferrite powder, the possibility of effectively heating of particles in the FMR mode in their own field without using a DC magnetic field source is shown. The observed effect can be used in magnetic hyperthermia.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Chekanova L. A., Denisova E. A., Goncharova O. A., Komogortsev S. V., Iskhakov R. S.
Заглавие : Analysis of phase composition of Co-P alloy powders using magnetometric data
Место публикации : Phys. Metals & Metallogr. - 2013. - Vol. 114. Is. 2. - P.122-128. - DOI 10.1134/S0031918X1302004X
Аннотация: A new method for the quantitative estimate of the phase composition of a multiphase ferromagnetic alloy is suggested that is based on measuring the temperature and field dependences of the magnetization. The phase composition of ultrafine Co-P powders is characterized. Phase diagrams of nonequilibrium Co-P solid solutions are constructed on particle size, i.e., the phosphorus concentration coordinates.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Iskhakov R. S., Vazhenina I. G., Yakovchuk V. Yu.
Заглавие : Angular and temperature dependences of ferromagnetic resonance in exchange-coupled FeNi/Dy/FeNi planar structures
Коллективы : Российская академия наук, Физико-технический институт им. Е.К. Завойского ФИЦ Казанского научного центра РАН, Казанский (Приволжский) федеральный университет, Euro-Asian Symposium "Trends in MAGnetism", "Trends in MAGnetism", Euro-Asian Symposium
Место публикации : VIII Euro-Asian symposium "Trends in magnetism" (EASTMAG-2022): Book of abstracts/ program com. S. G. Ovchinnikov [et al.]. - 2022. - Vol. 1, Sect.: Spintronics and magnetic nanostructures. - Ст.A.P52. - P.196-197. - ISBN 978-5-94469-051-7
Примечания : Cited References: 1. - Support by RFBR, Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science, project number 20-42-240010 is acknowledged
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Vazhenina I. G., Iskhakov R. S., Rautskii M. V., Milyaev M. A., Naumova L. I., Klepikova A. S.
Заглавие : Angular dependences of uniform and non-uniform ferromagnetic resonance in multilayer 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.P19. - P.193. - ISBN 978-5-9500855-7-4 (Шифр В33/E12-125657784)
Примечания : Cited References: 2. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science to the research project No 18-42-243005 ”Synthesis and investigation of magnetic properties of gradient materials that are characterized by predetermine type of the magnetic parameter change”.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Stolyar S. V., Bayukov O. A., Chekanova L. A., Gerasimova Y. V., Sokolov A. Е., Iskhakov R. S., Yaroslavtsev R. N., Volochaev M. N., Artemyeva A. S., Cheremiskina E. V., Knyazev Yu. V.
Заглавие : Anisometric iron oxide-based nanoparticles and sols based on them: Preparation and properties
Место публикации : J. Supercond. Novel Magn. - 2019. - Vol. 32, Is. 4. - P.971–975. - ISSN 15571939 (ISSN) , DOI 10.1007/s10948-018-4784-7
Примечания : Cited References: 18. - The reported study was carried out with the financial support of the Russian Foundation for Fundamental Research, the Government of the Krasnoyarsk Territory, and the Krasnoyarsk Territory Fund for Support of Scientific and Technical Activity in the framework of scientific Projects No. 18-43-243003, No. 17-42-240080 and No. 17-43-240527. The work is supported by the Special Program of the Ministry of Education and Science of the Russian Federation for the Siberian Federal University.
Ключевые слова (''Своб.индексиров.''): nanoparticles and nanorods--chemical preparation--superparamagnetism
Аннотация: We have synthesized magnetic powders of the magnetite-maghemite series by the chemical reaction of the FeSO4 iron salt and the natural arabinogalactan polysaccharide. These particles with a high magnetization value (∼ 300 Gs) represent a mixture of spherical particles and nanorods. Particles of a spherical shape (diameter of ∼ 5–6 nm) show a superparamagnetic behavior at room temperature, while rods with a diameter of ∼ 5 nm and a length of 30 nm are magnetic. We have prepared sol samples based on the nanoparticle aqueous solution of arabinogalactan. Our results on the magnetism of the circular dichroism (MCD) on sol are consistent with the of Mössbauer spectroscopy data.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Komogortsev S. V., Iskhakov R. S., Kuznetsov P. A., Balaev A. D., Bondarenko G. N.
Заглавие : Approach to magnetic saturation and random magnetic anisotropy in nanocrystalline alloy Fe73.5CuNb3Sil3.5B9
Коллективы : Moscow International Symposium on Magnetism
Место публикации : Moscow Int. Symp. on Magnet. (MISM-2011): Book of abstracts. - 2011. - Ст.23PO-I-19. - P.399
Примечания : Библиогр.: 1. - Support by Federal Program “Development of the Scientific Potential of Higher Education” (project no. RNP 2.1.1/11470), Federal Target Program “Research and Research-Pedagogical Personnel of Innovation Russia for 2009-2013”, Russian Foundation for Basic Research (project 11-03-00471-а) are acknowledged.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Stolyar S. V., Balaev D. A., Ladygina V. P., Dubrovskiy A. A., Krasikov A. A., Popkov S. I., Bayukov O. A., Knyazev Yu. V., Yaroslavtsev R. N., Volochaev M. N., Iskhakov R. S., Dobretsov K. G., Morozov E. V., Falaleev O. V., Inzhevatkin E. V., Kolenchukova O. A., Chizhova I. A.
Заглавие : Bacterial ferrihydrite nanoparticles: preparation, magnetic properties, and application in medicine
Место публикации : J. Supercond. Novel Magn. - 2018. - Vol. 31, Is. 8. - P.2297-2304. - ISSN 15571939 (ISSN), DOI 10.1007/s10948-018-4700-1
Примечания : Cited References: 37. - The electron microscopy examination was carried out at the Center for Collective Use of the Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences (Krasnoyarsk, Russia).
Ключевые слова (''Своб.индексиров.''): nanoparticles--ferrihydrite--magnetic properties--drug delivery
Аннотация: Nanoparticles of antiferromagnetically ordered materials acquire the uncompensated magnetic moment caused by defects and surface effects. A bright example of such a nano-antiferromagnet is nanoferrihydrite consisting of particles 2–5 nm in size, the magnetic moment of which amounts to hundreds of Bohr magnetons per particle. We present a brief review of the studies on magnetic properties of ferrihydrite produced by bacteria. Special attention is focused on the aspects of possible biomedical applications of this material, i.e., the particle elimination, toxicity, and possible use for targeted drug delivery.
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