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Advanced characterization of FeNi-based films for the development of magnetic field sensors with tailored functional parameters / S. V. Komogortsev, I. G. Vazhenina, S. A. Kleshnina [et al.] // Sensors. - 2022. - Vol. 22, Is. 9. - Ст. 3324, DOI 10.3390/s22093324. - 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) . - ISSN 1424-8220
Кл.слова (ненормированные):
magnetic field sensors -- thin films -- multilayered structures -- magnetic anisotropy -- anisotropy distribution -- ferromagnetic resonance -- magnetoimpedance -- high frequency applications
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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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Physics, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Department of Magnetism of Solid State, Institute of Natural Sciences and Mathematics, Ural Federal University, Ekaterinburg, 620002, Russian Federation
Laboratory of Advanced Magnetic Materials, Institute of Metal Physics UD RAS, Ekaterinburg, 620108, Russian Federation

Доп.точки доступа:
Komogortsev, S. V.; Комогорцев, Сергей Викторович; Vazhenina, I. G.; Важенина, Ирина Георгиевна; Kleshnina, S. A.; Клешнина, Софья Андреевна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Lepalovskij, V. N.; Pasynkova, A. A.; Svalov, A. V.
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Iskhakov, R. S.
Angular and temperature dependences of ferromagnetic resonance in exchange-coupled FeNi/Dy/FeNi planar structures / R. S. Iskhakov, I. G. Vazhenina, V. Yu. Yakovchuk // 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. - Cited References: 1. - Support by RFBR, Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science, project number 20-42-240010 is acknowledged . - ISBN 978-5-94469-051-7

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia

Доп.точки доступа:
Ovchinnikov, S. G. \program com.\; Овчинников, Сергей Геннадьевич; Vazhenina, I. G.; Важенина, Ирина Георгиевна; Yakovchuk, V. Yu.; Яковчук, Виктор Юрьевич; Исхаков, Рауф Садыкович; 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"(8 ; 2022 ; Aug. ; 22-26 ; Kazan); "Trends in MAGnetism", Euro-Asian Symposium(8 ; 2022 ; Aug. ; 22-26 ; Kazan)
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Vazhenina, I. G.
Angular dependences of uniform and non-uniform ferromagnetic resonance in multilayer films / I. G. Vazhenina, R. S. Iskhakov [et al.] // 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. - 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”. . - ISBN 978-5-9500855-7-4

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
M.N. Miheev Institute of Metal Physics of Ural Branch of Russian Academy of Sciences, Ekaterinburg, Russia

Доп.точки доступа:
Ovchinnikov, S. G. \чл. конс. ком.\; Овчинников, Сергей Геннадьевич; Volkov, N. V. \чл. конс. ком.\; Волков, Никита Валентинович; Dzebisashvili, D. M. \чл. прогр. ком.\; Дзебисашвили, Дмитрий Михайлович; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Rautskii, M. V.; Рауцкий, Михаил Владимирович; Milyaev, M. A.; Naumova, L. I.; Klepikova, A. S.; Важенина, Ирина Георгиевна; 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"(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg); "Trends in MAGnetism", Euro-Asian Symposium(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg)
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Vazhenina, I. G.
Characteristics of angular dependences of parameters of ferromagnetic and spin-wave resonance spectra of magnetic films / I. G. Vazhenina, R. S. Iskhakov, V. Y. Yakovchuk // Phys. Met. Metallogr. - 2022. - Vol. 123, Is. 11. - P. 1084-1090, DOI 10.1134/S0031918X2260124X. - Cited References: 36 . - ISSN 0031-918X. - ISSN 1555-6190
Кл.слова (ненормированные):
spin-wave and ferromagnetic resonance -- surface anisotropy constant -- thin magnetic films -- boundary conditions
Аннотация: This paper presents the results of measuring the main parameters of the ferromagnetic and spin-wave resonance spectra (resonant field, linewidth, and intensity) of single-layer permalloy films at various angles in the out-of-plane orientation. The effect of the type of surface conditions on the angular dependence of the intensity ratio of adjacent modes is studied. A correspondence is established between the angle of the applied constant magnetic field with respect to the normal to the film and the change in the oscillation type from uniform to nonuniform. The revealed features of the angular dependences of the resonant field and the intensity of the spectral peak can be successfully used in the identification of microwave spectra. The fundamental magnetic parameters (effective magnetization, exchange interaction constant, surface anisotropy constant, and perpendicular anisotropy field) were determined.

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Публикация на русском языке Важенина, Ирина Георгиевна. Особенности угловых зависимостей параметров спектров ферромагнитного и спин-волнового резонанса магнитных пленок [Текст] / И. Г. Важенина, Р. С. Исхаков, В. Ю. Яковчук // Физ. металлов и металловед. - 2022. - Т. 123 № 11. - С. 1153-1160

Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Iskhakov, R. S.; Исхаков, Рауф Садыкович; Yakovchuk, V. Yu.; Яковчук, Виктор Юрьевич; Важенина, Ирина Георгиевна
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Fe3O4/Au nanocomposites: Characterization and cytotoxicity effects in vitro / R. N. Yaroslavtsev, A. V. Tyumentseva, D. A. Velikanov [et al.] // Mater. Chem. Phys. - 2024. - Vol. 322. - Ст. 129524, DOI 10.1016/j.matchemphys.2024.129524. - Cited References: 44 . - ISSN 0254-0584. - ISSN 1879-3312
Кл.слова (ненормированные):
Magnetic nanoparticles -- Magnetite -- Gold nanoparticles -- Cytotoxicity
Аннотация: Magnetic nanocomposites containing iron oxide and gold components take great attention last years because of their relative biocompatibility and the ability to combine the magnetic properties of iron and the chemical bonding properties of gold for the possible drug delivery or diagnostics for various diseases. However, such particles have some toxicity to living cells, and the effect depends on many factors, including size, shape, the ratio of components in the composites, and the type of cells affected. And thus, the search for compositions and technologies for producing iron-gold particles with improved properties and reduced cytotoxicity remains relevant. The aim of the study was to synthesize and characterize Fe3O4/Au nanocomposites and evaluate their influence on living cells using the example of cell line HEK293. Fe3O4 nanoparticles (NPs) were synthesized by co-precipitation of Fe2+/Fe3+ water solution in alkaline conditions and then boiled with HAuCl4 in 0.1 M sodium citrate. The NPs properties were estimated by transmission electron microscopy (TEM), vibration magnetometry and ferromagnetic resonance (FMR). According to magnetometric measurements, nanoparticles are mainly in a superparamagnetic state. By fitting magnetization curves, the magnetic characteristics of nanoparticles were determined: saturation magnetization (59.3 emu/g) and magnetic anisotropy constant (K = 0.86·105 erg/cm3). The average particle size estimated from magnetic measurements was 8.7 nm. Considering the presence of a magnetically dead layer, this is in good agreement with the TEM results. The temperature dependence of the FMR linewidth was analyzed using two models. As a result, the parameters MSV and K/MS were determined. The models used showed good agreement. The values of the anisotropy constant (K = 1.06·105 erg/cm3) and the average particle size (6.8 nm) are estimated. The effect of the NPs on the HEK293 cells was studied by MTT-assay, flow cytometry and RT-PCR. The exposure with the NPs lead to a significant decrease of cell metabolic activity in HEK293 cell culture, but this effect was not accompanied by cell death. It was shown that the expression of antioxidant enzymes SOD1 and GPX1 was reduced at the mRNA stage. So the NPs synthesized may affect gene expression and metabolism of HEK293 cells, but this does not have fatal consequences for cell viability.

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Держатели документа:
Krasnoyarsk Science Center, Federal Research Center KSC SB RAS, Akademgorodok 50, Krasnoyarsk, 660036, Russia
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok 50, bld. 38, Krasnoyarsk, 660036, Russia

Доп.точки доступа:
Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Tyumentseva, A.V.; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Vazhenina, I. G.; Важенина, Ирина Георгиевна; Volochaev, M. N.; Волочаев, Михаил Николаевич; Stolyar, S. V.; Столяр, Сергей Викторович
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Ferromagnetic and spin-wave resonance in FexNi1-x (0∠x∠1) films / I. G. Vazhenina [et al.] // Solid State Phenom. : Selected, peer reviewed papers. - 2015. - Vol. 233-234: Achievements in Magnetism. - P. 682-685, DOI 10.4028/www.scientific.net/SSP.233-234.682 . - ISSN 1662-9779. - ISSN 978-3-038
Кл.слова (ненормированные):
Electroless deposited method -- Ferromagnetic and spin-wave resonance -- Heterogeneity structure -- Invar alloy Fe-Ni -- Ferromagnetic materials -- Ferromagnetism -- Magnetism -- Multilayers -- Nickel -- Resonance -- Dispersion relations -- Electroless -- FeNi alloys -- Invar alloy -- Magnetic heterogeneity -- Resonance field -- Spin wave resonances -- Wave spectroscopy -- Spin waves
Аннотация: We report ferromagnetic and spin-wave resonance measurements on the electroless deposited thin films of Fe-Ni alloy including alloy with invar content. From spin-wave resonance spectrum we defined the dependences of resonance fields on the number of mode. Analysis of this spectrum shows that positions of resonance fields are described by the Kittel dispersion relation. The type and the size of magnetic heterogeneity is estimated by the spin-wave spectroscopy technique. © (2015) Trans Tech Publications, Switzerland.

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Доп.точки доступа:
Perov, N. \ed.\; Semisalova, A. \ed.\; Vazhenina, I. G.; Важенина, Ирина Георгиевна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Chekanova, L. A.; Чеканова, Лидия Александровна; Stolyar, S. V.; Столяр, Сергей Викторович; Yakovchuk, V. Yu.; Яковчук, Виктор Юрьевич; Moscow International Symposium on Magnetism(6 ; 2014 ; June-July ; Moscow)
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Ferromagnetic and spin-wave resonance in the [CoFe/Cu]N superlattice thin (30-nm) film / I. G. Vazhenina, R. S. Iskhakov, M. V. Rautskii [et al.] // Phys. Solid State. - 2020. - Vol. 62, Is. 1. - P. 153-159, DOI 10.1134/S1063783420010357. - Cited References: 44. - This study was supported by the Russian Foundation for Basic Research, Government of the Krasnoyarsk Krai, and Krasnoyarsk Territorial Foundation for Support of Scientific and R&D Activities, project no. 18-42-243005 “Synthesis and Study of the Magnetic Properties of Gradient Materials with Different Types of a Specified Magnetic Parameter” and project “Spin” no. AAAA-A18-118020290104-2 . - ISSN 1063-7834
Кл.слова (ненормированные):
ferromagnetic and spin-wave resonance -- surface anisotropy constant -- exchange coupling constant -- superlattice
Аннотация: Angular dependences of the microwave absorption spectra of a (CoFe/Cu)N multilayer film have been studied by the ferromagnetic and spin-wave resonance techniques. The critical angle θc indicating the ranges of excitation of uniform and nonuniform spin modes, type of the boundary conditions, and surface anisotropy and exchange coupling constants have been established. It is shown that the accuracy of identification of individual modes in the spectra plays a key role in the analysis of the detected curves.

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Публикация на русском языке Ферромагнитный и спин-волновой резонанс в тонкой пленке (30 nm) сверхрешетки [CoFe/Cu]N [Текст] / И. Г. Важенина, Р. С. Исхаков, М. В. Рауцкий [и др.] // Физ. тверд. тела. - 2020. - Т. 62 Вып. 1. - С. 110-116

Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, 620108, Russian Federation

Доп.точки доступа:
Vazhenina, I. G.; Важенина, Ирина Георгиевна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Rautskii, M. V.; Рауцкий, Михаил Владимирович; Milyaev, M. A.; Naumova, L. I.
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Ferromagnetic resonance and magnetic anisotropy of 3-d metal rods with gradients of composition / E. A. Denisova, L. A. Chekanova, S. V. Komogortsev [et al.] // V International Baltic Conference on Magnetism. IBCM : Book of abstracts. - 2023. - P. 135

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS
Siberian Federal University

Доп.точки доступа:
Denisova, E. A.; Денисова, Елена Александровна; Chekanova, L. A.; Чеканова, Лидия Александровна; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Vazhenina, I. G. (Vashenina, I.); Важенина, Ирина Георгиевна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Nemtsev, I. V.; Немцев, Иван Васильевич; International Baltic Conference on Magnetism(5 ; 2023 ; Aug. 20-24 ; Svetlogorsk, Russia); Балтийский федеральный университет им. И. Канта
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Ferromagnetic resonance and magnetic anisotropy of 3d-metal wires with composition gradients / E. A. Denisova, L. A. Chekanova, S. V. Komogortsev [et al.] // Bull. Russ. Acad. Sci.: Phys. - 2024. - Vol. 88, Is. 4. - P. 531-535, DOI 10.1134/S1062873823706244. - Cited References: 13 . - ISSN 1062-8738. - ISSN 1934-9432
Кл.слова (ненормированные):
wires with gradients of composition -- electroless deposition -- ferromagnetic resonance -- magnetic anisotropy
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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Держатели документа:
Kirensky Institute of Physics, Federal Reserch Center “Krasnoyarsk Science Centre,” Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia
Siberian Federal University, 660041, Krasnoyarsk, Russia
Rechetnev Siberian State University of Science and Technology, 660049, Krasnoyarsk, Russia
Federal Reserch Center “Krasnoyarsk Science Center,” Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia

Доп.точки доступа:
Denisova, E. A.; Денисова, Елена Александровна; Chekanova, L. A.; Чеканова, Лидия Александровна; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Vazhenina, I. G.; Важенина, Ирина Георгиевна; Nemtsev, I. V.; Немцев, Иван Васильевич; Li, O. A.
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Magnetic coatings of transition metals synthesized using arabinogalactan / R. N. Yaroslavtsev, S. V. Stolyar, L. A. Chekanova [et al.] // 4th International Baltic Conference on Magnetism (IBCM 2021) : Book of abstracts. - 2021. - P. 217. - Cited References: 2

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS

Доп.точки доступа:
Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Stolyar, S. V.; Столяр, Сергей Викторович; Chekanova, L. A.; Чеканова, Лидия Александровна; Cheremiskina, E. V.; Vazhenina, I. G.; Важенина, Ирина Георгиевна; International Baltic Conference on Magnetism: focus on nanobiomedicine and smart materials(4 ; 2021 ; Aug. 29-Sept. 2 ; Svetlogorsk, Russia); Балтийский федеральный университет им. И. Канта
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11.

Magnetic composite coatings FeC and NiC synthesized with arabinogalactan / S. Stolyar, I. Vazhenina, R. Yaroslavtsev [et al.] // IEEE Magn. Lett. - 2022. - Vol. 13. - Ст. 2503505, DOI 10.1109/LMAG.2022.3164631. - 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 . - ISSN 1949-307X
Кл.слова (ненормированные):
magnetism in solids -- electroless deposition -- magnetic coatings -- ferromagnetic resonance
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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Держатели документа:
Krasnoyarsk Scientific Center, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
Kirensky Institute Of Physics, Federal Research Center Ksc Sb Ras, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Institute Of Chemistry And Chemical Technology, Federal Research Center Ksc Sb Ras, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Stolyar, S. V.; Столяр, Сергей Викторович; Vazhenina, I. G.; Важенина, Ирина Георгиевна; Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Chekanova, L. A.; Чеканова, Лидия Александровна; Cheremiskina, E.; Mikhlin, Y.
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12.

Magnetic properties of FeNi/Cu-based lithographic rectangular multilayered elements for magnetoimpedance applications / G. Yu. Melnikov, I. G. Vazhenina, R. S. Iskhakov [et al.] // Sensors. - 2023. - Vol. 23, Is. 13. - Ст. 6165, DOI 10.3390/s23136165. - Cited References: 72. - This research was funded by the Russian Science Foundation (RSF), project no. 22-29-00980, https://rscf.ru/project/22-29-00980/ (accessed on 1 July 2023). - Authors acknowledge the possibility to use the Krasnoyarsk Regional Center of Research Equipment of the Federal Research Center “Krasnoyarsk Science Center SB RAS” for ferromagnetic resonance studies. We thank A.A. Yuvchenko and V.N. Lepalovskij for special support. The authors wish to thank the anonymous referees for their comments and suggestions . - ISSN 1424-8220
Кл.слова (ненормированные):
magnetic multilayers -- permalloy -- magnetic properties -- ferromagnetic resonance -- spin-wave resonance -- magnetoimpedance -- magnetic field sensors
Аннотация: The rectangular elements in magnetoimpedance (MI) configuration with a specific nanocomposite laminated structure based on FeNi and Cu layers were prepared by lift-off lithographic process. The properties of such elements are controlled by their shape, the anisotropy induced during the deposition, and by effects associated with the composite structure. The characterizations of static and dynamic properties, including MI measurements, show that these elements are promising for sensor applications. We have shown that competition between the shape anisotropy and the in-plane induced anisotropy of the element material is worth taking into account in order to understand the magnetic behavior of multilayered rectangular stripes. A possibility of the dynamic methods (ferromagnetic and spin-wave resonance) to describe laminated planar elements having a non-periodic modulation of both structure and magnetic parameters of a system is demonstrated. We show that the multilayered structure, which was originally designed to prevent the development of a “transcritical” state in magnetic layers and to reach the required thickness, also induces the effects that hinder the achievement of the goal, namely an increase in the perpendicular magnetic anisotropy energy.

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Держатели документа:
Institute of Natural Sciences and Mathematics, Ural Federal University, 620002 Ekaterinburg, Russia
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
School of Space and Information Technology, Siberian Federal University, 660041 Krasnoyarsk, Russia
Applied Physics Department, Reshetnev Siberian State University of Science and Technology, 660037 Krasnoyarsk, Russia

Доп.точки доступа:
Melnikov, Grigory Yu.; Vazhenina, I. G.; Важенина, Ирина Георгиевна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Boev, N. M.; Боев, Никита Михайлович; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Svalov, Andrey V.; Kurlyandskaya, Galina V.
}
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13.

    Microwave giant magnetoresistance and ferromagnetic and spin-wave resonances in (CoFe)/Cu nanostructures / V. V. Ustinov, A. B. Rinkevich, I. G. Vazhenina, M. A. Milyaev // J. Exp. Theor. Phys. - 2020. - Vol. 131, Is. 1. - P. 139-148, DOI 10.1134/S1063776120070171. - Cited References: 51. - This work was performed in terms of project Spin no. AAAA-A18-118020290104-2 and project Function no. AAAA-A19-119012990095-0. Section 3 was supported by the Russian Science Foundation, project no. 17-1201002 . - ISSN 1063-7761. - ISSN 1090-6509
Рубрики:
COFE/CU SUPERLATTICES
   MAGNETIC MULTILAYERS
   CO/CU MULTILAYERS
   FILMS
Аннотация: The microwave phenomena that occur in magnetic multilayer (CoFe)/Cu nanostructures, which have a giant magnetoresistance, are studied. The transmission of waves through a nanostructure is used to investigate the microwave giant magnetoresistance effect. The changes in the transmission coefficient at frequencies of 29–38 GHz are found to exceed the relative magnetoresistance, which distinguishes the system under study from the nanostructures studied earlier. Ferromagnetic and spin-wave resonances are used to study the angular dependences of the microwave absorption spectra of a multilayer (CoFe/Cu)n nanostructure. The following parameters are determined: the critical angle that determines the boundaries of the ranges of excitation of uniform and nonuniform spin modes, the type of boundary conditions describing the pinning of spins on the outer nanostructure surfaces, and the surface anisotropy and exchange interaction constants.

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Публикация на русском языке Микроволновой гигантский магниторезистивный эффект, ферромагнитный и спин-волновой резонансы в наноструктурах (CoFe)/Cu [Текст] / В. В. Устинов, А. Б. Ринкевич, И. Г. Важенина, М. А. Миляев // Журн. эксперим. и теор. физ. - 2020. - Т. 158 Вып. 1. - С. 139-150

Держатели документа:
Russian Acad Sci, Inst Met Phys, Ural Div, Ekaterinburg 620108, Russia.
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Ustinov, V. V.; Rinkevich, A. B.; Vazhenina, I. G.; Важенина, Ирина Георгиевна; Milyaev, M. A.; Russian Science FoundationRussian Science Foundation (RSF) [AAAA-A18-118020290104-2, AAAA-A19-119012990095-0]; [17-1201002]
}
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14.

Spin Wave Resonance in the [(Co0.88Fe0.12)/Cu]N Synthetic Antiferromagnet / I. G. Vazhenina, R. S. Iskhakov, M. A. Milyaev [et al.] // Tech. Phys. Lett. - 2020. - Vol. 46, Is. 11. - P. 1076-1079, DOI 10.1134/S1063785020110140. - Cited References: 19. - This study was carried out under a state order of the Ministry of Science and Higher Education of the Russian Federation (theme "Spin" no. AAAA-A18-118020290104-2) and supported in part by the Russian Foundation for Basic Research (project no. 20-42-660018) . - ISSN 1063-7850. - ISSN 1090-6533

РУБ Physics, Applied
Рубрики:
MAGNETIC-PROPERTIES
   MAGNETORESISTANCE
   SPECTRUM
   FILMS
Кл.слова (ненормированные):
spin wave resonance -- synthetic antiferromagnet -- exchange coupling constant
Аннотация: The [(Co0.88Fe0.12)/Cu]N synthetic antiferromagnet has been investigated by the spin wave resonance method over the entire range of angles of an external dc magnetic field to the film surface normal. The investigations have shown that the superlattice under study consists of two exchange-coupled magnetic subsystems, each manifested in the recorded spectra as a series of spin-wave modes. The dependence of the linear region of propagation of a standing spin-wave mode on the sample orientation in an external magnetic field has been established.

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Публикация на русском языке Спин-волновой резонанс в синтетическом антиферромагнетике [(Co0.88Fe0.12)/Cu]N [Текст] / И. Г. Важенина, Р. С. Исхаков, М. А. Миляев [и др.] // Письма в Журн. техн. физ. - 2020. - T. 46 Вып. 21. - С. 28-31

Держатели документа:
Russian Acad Sci, Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Ural Branch, MN Mikheev Inst Met Phys, Ekaterinburg 620108, Russia.

Доп.точки доступа:
Vazhenina, I. G.; Важенина, Ирина Георгиевна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Milyaev, M. A.; Naumova, L. I.; Rautskii, M. V.; Рауцкий, Михаил Владимирович; Ministry of Science and Higher Education of the Russian Federation [AAAA-A18-118020290104-2]; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [20-42-660018]
}
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15.

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

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

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

Доп.точки доступа:
Chekanova, L. A.; Чеканова, Лидия Александровна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Важенина, Ирина Георгиевна
}
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16.

    Vazhenina, I. G.
    Spin-wave resonance in chemically deposited Fe-Ni films: measuring the spin-wave stiffness and surface anisotropy constant / I. G. Vazhenina, R. S. Iskhakov, L. A. Chekanova // Phys. Solid State. - 2018. - Vol. 60, Is. 2. - P. 292-298, DOI 10.1134/S1063783418020294. - Cited References:39. - This study was supported by the Russian Foundation for Basic Research, projects nos. 16-03-00256 and 16-03-00969. . - ISSN 1063-7834. - ISSN 1090-6460
Рубрики:
FERROMAGNETIC-RESONANCE
   FERRIHYDRITE NANOPARTICLES
   LAYERS
Аннотация: Single-layer Fe x Ni1 - x thin magnetic films have been investigated by the spin-wave resonance technique in the entire concentration range. The surface anisotropy and exchange stiffness constants for the films with a Ni content from 30 to 80 at % have been measured from the experimental standing spin wave spectra. The surface exchange spin wave penetration depth δ C = 20–30 nm has been determined from the dependences of the surface anisotropy and exchange coupling constants on the Fe20Ni80 film thickness in the range of 250–400 nm.

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Публикация на русском языке Важенина, Ирина Георгиевна. Спин-волновой резонанс в химически осажденных Fe-Ni пленках: измерения спин-волновой жесткости и константы поверхностной анизотропии [Текст] / И. Г. Важенина, Р. С. Исхаков, Л. А. Чеканова // Физ. тверд. тела. - 2018. - Т. 60 Вып. 2. - С. 287–293

Держатели документа:
Институт физики им. Л.В. Киренского СО РАН, Красноярск, Россия

Доп.точки доступа:
Iskhakov, R. S.; Исхаков, Рауф Садыкович; Chekanova, L. A.; Чеканова, Лидия Александровна; Важенина, Ирина Георгиевна; Russian Foundation for Basic Research [16-03-00256, 16-03-00969]
}
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17.

Spin-wave resonance in heterogeneous magnetic Co-Ni films / I. G. Vazhenina, L. A. Chekanova, R. S. Iskhakov // Moscow Int. Symp. on Magnet. (MISM-2017) : 1-7 July 2017 : book of abstracts. - 2017. - Ст. 2PO-K-46. - P. 319. - Cited References: 3. - Support by regional start Autonomous institution “Krasnoyarsk regional Fund of support of scientific and scientific technical activity”also Russian Foundation for Basic Research, Grants № 16-03-00256 and № 16-03-00969 is acknowledged

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Доп.точки доступа:
Vazhenina, I. G.; Важенина, Ирина Георгиевна; Chekanova, L. A.; Чеканова, Лидия Александровна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Moscow International Symposium on Magnetism(7 ; 2017 ; Jul. ; Moscow); Московский государственный университет им. М.В. Ломоносова; Российский фонд фундаментальных исследований
}
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18.

    Spin-wave resonance in multilayer FeNiP/Pd films / R. S. Iskhakov [et al.] // Bull. Russ. Acad. Sci. Phys. - 2014. - Vol. 78, Is. 4. - P. 328-329, DOI 10.3103/S1062873814040145. - Cited References: 6. - This work was performed by order of the RF Ministry of Education and Science. . - ISSN 1062-8738. - ISSN 1934-9432
Рубрики:
Nuclear Physics
   Heavy Ions
   Hadrons
Кл.слова (ненормированные):
Chemical vapor deposition -- Pd film -- Spin wave resonances -- Multilayer films
Аннотация: Ferromagnetic and spin wave resonances are studied in FeNiP/Pd multilayer films obtained via chemical vapor deposition. The partial exchange interaction constant of polarized Pd films is found to be A Pd ≈ 1 × 10-7 erg/cm. © 2014 Allerton Press, Inc.

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Публикация на русском языке Спин-волновой резонанс в мультислойных пленках FeNiP/Pd [Текст] / Р. С. Исхаков, Л. А. Чеканова, С. В. Столяр, И. Г. Важенина // Изв. РАН. Сер. физич. - 2014. - Т. 78 № 4. - С. 502-503

Держатели документа:
L.V. Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk 660033, Russian Federation
Siberian Federal University, Krasnoyarsk 660041, Russian Federation
Krasnoyarsk Institute of Railway Transport, Krasnoyarsk 660028, Russian Federation

Доп.точки доступа:
Iskhakov, R. S.; Исхаков, Рауф Садыкович; Chekanova, L. A.; Чеканова, Лидия Александровна; Stolyar, S. V.; Столяр, Сергей Викторович; Vazhenina, I. G.; Важенина, Ирина Георгиевна
}
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19.

Spin-Wave Resonance in One-Dimensional Magnonic Crystals by an Example of Multilayer Co-P Films / R. S. Iskhakov, S. V. Stolyar, L. A. Chekanova, I. G. Vazhenina // Phys. Solid State. - 2020. - Vol. 62, Is. 10. - P. 1861-1867, DOI 10.1134/S1063783420100121. - Cited References: 47 . - ISSN 1063-7834. - ISSN 1090-6460

РУБ Physics, Condensed Matter
Рубрики:
FERROMAGNETIC-RESONANCE
   SPECTRUM
   MODES
   INHOMOGENEITIES
Кл.слова (ненормированные):
spin-wave resonance -- surface-anisotropy constant -- exchange-interaction constant -- amorphous and nanocrystalline alloys
Аннотация: Layered magnetic films of Co–P alloy, which are sets of laminates with certain atomic and chemical structures, have been investigated by spin-wave resonance. Coatings of two types were synthesized: a magnonic crystal (amorphous Co(P)/fcc Co(P))N and gradient Co(P) films. They exhibit two different modifications of the spin-wave resonance (SWR) spectrum. In the first case, the SWR spectrum is described as Hn(n) ~ n2 with a modification caused by the formation of the first stop band of the magnonic crystal. In the second case, the dependence of resonance fields Hn of the spin-wave modes on mode number n has the form of Hn(n) ~ n2/3. Thermal annealing leads to crystallization (amorphous alloy → fcc) and causes transformation of the layered films to the films of single-phase Co–P alloys, which is accompanied by a change in the shapes of the SWR spectra and occurrence of a “exchange kink” spectral modification.

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Публикация на русском языке Спин-волновой резонанс в одномерных магнонных кристаллах, на примере мультислойных пленок Co-P [Текст] / Р. С. Исхаков, С. В. Столяр, Л. А. Чеканова, И. Г. Важенина // Физ. тверд. тела. - 2020. - Т. 62 Вып. 10. - С. 1658-1664

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

Доп.точки доступа:
Iskhakov, R. S.; Исхаков, Рауф Садыкович; Stolyar, S. V.; Chekanova, L. A.; Чеканова, Лидия Александровна; Vazhenina, I. G.; Важенина, Ирина Георгиевна
}
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20.

Spin-wave resonance of exchange-coupled three-layers FeNi/Cu/FeNi planar structures / I. G. Vazhenina, S. V. Stolyar, V. Y. Yakovchuk, R. S. Iskhakov // Phys. Solid State. - 2022. - Vol. 64, Is. 14. - P. 2334-2343, DOI 10.21883/PSS.2022.14.54336.170. - Cited References: 37. - The work was done with financial support from the Russian Foundation for Basic Research, Government of Krasnoyarsk Krai and the Krasnoyarsk Krai Foundation of Science within the scientific project No. 20-42-240010 . - ISSN 1063-7834. - ISSN 1090-6460
Кл.слова (ненормированные):
spin-wave resonance -- surface anisotropy constant -- exchange interaction constant -- interlayer exchange interaction
Аннотация: The spectrums of standing exchange spin waves into magnetic sandwich Ni80Fe20/Cu(tCu)/Ni80Fe20 were studied by spin-wave resonance method. The layer of diamagnetic Cu depending on its thickness tCu provided both positive and negative exchange interaction between ferromagnetic layers. It was shown that spin waves modes of SWR spectra which are described by well-known relation Hacres(n)~ n2 are standing acoustic exchange spin oscillations of individual ferromagnetic layers, regardless of a sign of interlayer exchange couple. It was detected that spin modes which are optical satellites of acoustic SWR peaks are described by the dependence of the resonance field Hopres(n)~ n5/2 or Hopres(n)~ n2 depending on the boundary conditions established on inner interfaces.

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Публикация на русском языке Спин-волновой резонанс в обменно-связанных трехслойных FeNi/Cu/FeNi планарных структурах [Текст] / И. Г. Важенина, С. В. Столяр, В. Ю. Яковчук, Р. С. Исхаков // Физ. тверд. тела. - 2021. - Т. 63 Вып. 12. - С. 2106-2115

Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB, Russian Academy of Sciences, Krasnoyarsk, Russia
Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russia
Siberian Federal University, Krasnoyarsk, Russia

Доп.точки доступа:
Vazhenina, I. G.; Важенина, Ирина Георгиевна; Stolyar, S. V.; Yakovchuk, V. Yu.; Яковчук, Виктор Юрьевич; Iskhakov, R. S.; Исхаков, Рауф Садыкович
}
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