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Magnetic anisotropy and ferromagnetic resonance in inhomogeneous demagnetizing fields near edges of thin magnetic films / P. N. Solovev, B. A. Belyaev, N. M. Boev [et al.] // J. Phys. Condens. Matter. - 2024. - Vol. 36, Is. 19. - Ст. 195803, DOI 10.1088/1361-648X/ad258c. - Cited References: 38 . - ISSN 0953-8984. - ISSN 1361-648X
Кл.слова (ненормированные):
edge domain -- demagnetizing fields -- demagnetizing fields -- film edges -- magnetic anisotropy -- magnetization dynamics
Аннотация: Using local ferromagnetic resonance spectroscopy, we have studied the magnetic properties near edges of thin tangentially magnetized permalloy films, in which a well-defined uniaxial magnetic anisotropy was induced perpendicular to one of the edges. In the experiment, two samples with thicknesses of 90 and 300 nm and with slightly different compositions were examined. To explain the magnetization dynamics near edges, we propose a simple yet effective model of a film in the form of a rectangular prism, which yields the modified Kittel formula for the resonance frequency. In this formula, the locally averaged distance-dependent demagnetizing field that emerges near the edges is included as an additional uniaxial anisotropy term. The measurements reveal that at a certain distance from the edge, the resulting (apparent) anisotropy, determined from the angular dependencies of the resonance field, almost vanishes. Moreover, its easy axis reorients to become parallel to the edge. The model predictions agree well with these results, proving that the main resonance mode behavior near the film edges can be accurately described by introducing additional effective uniaxial anisotropy, provided the measuring area is relatively large. However, for the thick (300 nm) sample, additional precession modes are also observed. These modes distort the angular dependence of the main mode, thus demonstrating the limitations of the model.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 50/38 Akademgorodok, 660036 Krasnoyarsk, Russia
Siberian Federal University, 79 Svobodny pr., 660041 Krasnoyarsk, Russia

Доп.точки доступа:
Solovev, P. N.; Соловьев, Платон Николаевич; Belyaev, B. A.; Беляев, Борис Афанасьевич; Boev, N. M.; Боев, Никита Михайлович; Skomorokhov, G. V.; Скоморохов, Георгий Витальевич; Izotov, A. V.; Изотов, Андрей Викторович
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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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Studying the ferromagnetic resonance heating of an isotropic superparamagnet by the example of biogenic ferrihydrite nanoparticles / S. V. Stolyar, O. A. Li, A. M. Vorotynov [et al.] // Bull. Russ. Acad. Sci.: Phys. - 2024. - Vol. 88, Is. 4. - P. 536-539, DOI 10.1134/S106287382370627X. - Cited References: 10 . - ISSN 1062-8738. - ISSN 1934-9432
Аннотация: Ferrihydrite nanoparticles are synthesized and characterized. The dependences of heating of powders are studied upon pumping by a high-frequency electromagnetic field on a dc magnetic field. It is shown that the experimental dependence of the temperature of particles on a dc magnetic field is consistent with the theory of ferromagnetic resonance for an isotropic superparamagnet.

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Держатели документа:
Federal Research Center “Krasnoyarsk Science Center,” Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia
Siberian Federal University, 660041, Krasnoyarsk, Russia
Kirensky Institute of Physics, Federal Research Center “Krasnoyarsk Science Center,” Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia

Доп.точки доступа:
Stolyar, S. V.; Столяр, Сергей Викторович; Li, O. A.; Vorotynov, A. M.; Воротынов, Александр Михайлович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Maksimov, N. G.; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Ladygina, V. P.; Shokhrina, A. O.
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    Influence of a thin V2O3 spacer on interlayer interactions in Fe-Ni/V2O3/FeNi film structures / G. S. Patrin, A. V. Kobyakov, V. I. Yushkov [et al.] // Processes. - 2023. - Vol. 11, Is. 7. - Ст. 2084, DOI 10.3390/pr11072084. - Cited References: 25. - The research was conducted according to the state assignment of the Ministry of Science and Higher Education of the Russian Federation and the Federal State Autonomous Educational Institution of Higher Education Siberian Federal University (No. FSRZ-2023-0008) . - ISSN 2227-9717
   Перевод заглавия: Влияние тонкой прослойки V2O3 на межслоевое взаимодействие в пленочной структуре FeNi/V2O3/FeNi
Кл.слова (ненормированные):
ferromagnetic -- vanadium oxide -- interface anisotropy
Аннотация: In this paper, we explore the suggestions of the results of experimental studies on low-dimensional layered systems in FeNi/V2O3/FeNi film structures. The multifunctional material V2O3 is used as an interlayer between the magnetically active FeNi layers. The films were obtained by ultrahigh vacuum magnetron sputtering on a glass substrate with a base size of 10−10 Torr. It has been found that for V2O3 films, the decrease in the metal–semiconductor transition temperature increases significantly. Magnetic characteristics were studied on the MPMS-XL SQUID magnetometer. The exchange effect occurs both in the region where the oxide has a magnetic order and in the paramagnetic region. The latter is due to the effect of the magnetic panel in the oxide package. The phenomenon of oscillation of the exchange field occurs depending on the phenomenon of intermediate observation observed experimentally.

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Держатели документа:
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, 79 Svobodny Pr., 660041 Krasnoyarsk, Russia
Kirensky Institute of Physics, Federal Research Center KSC Siberian Branch Russian Academy of Sciences, Akademgorodok 50, Building 38, 660036 Krasnoyarsk, Russia

Доп.точки доступа:
Patrin, G. S.; Патрин, Геннадий Семёнович; Kobyakov, A. V.; Кобяков, Александр Васильевич; Yushkov, V. I.; Юшков, Василий Иванович; Anisimov, I. O.; Zharkov, S. M.; Жарков, Сергей Михайлович; Semenov, S. V.; Семёнов, Сергей Васильевич; Moiseenko, Evgeniy T.
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Heating of magnetic powders in the ferromagnetic resonance mode at a frequency of 8.9 GHz / S. V. Stolyar, O. A. Li, E. D. Nikolaeva [et al.] // Phys. Solid State. - 2023. - Vol. 65, Is. 6. - P. 963-970, DOI 10.21883/PSS.2023.06.56109.21H. - Cited References: 25 . - ISSN 1063-7834. - ISSN 1090-6460
Кл.слова (ненормированные):
ferromagnetic resonance -- superparamagnetic powders -- relaxation frequency -- frequency-field dependence -- heating of powders
Аннотация: Nickel ferrite nanoparticles 4 nm in size were synthesized by chemical deposition. Subsequent annealing at T=700°C for 5 h led to an increase in the particle size to 63 nm. The Mossbauer spectra and the frequency-field dependences of ferromagnetic resonance have been measured. It has been shown that freshly prepared powders are superparamagnetic at room temperature. The kinetic dependences of the heating of nanoparticles in the ferromagnetic resonance mode at a frequency of 8.9 GHz were measured. It was found that the maximum rate of temperature increase in this mode for a ferromagnetic powder is an order of magnitude greater than for the superparamagnetic state (1.2 and 0.13 K/s, respectively). The latter is determined by the saturation magnetization of the studied powders.

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Публикация на русском языке Нагрев магнитных порошков в режиме ферромагнитного резонанса на частоте 8.9 GHz [Текст] / С. В. Столяр, О. А. Ли, Е. Д. Николаева [и др.]. - 8 с. // Физ. твердого тела. - 2023. - Т. 65 Вып. 6. - С. 1006-1013

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

Доп.точки доступа:
Stolyar, S. V.; Li, O. A.; Nikolaeva, E. D.; Boev, N. M.; Боев, Никита Михайлович; Vorotynov, A. M.; Воротынов, Александр Михайлович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Pyankov, V. F.; Knyazev, Yu. V.; Князев, Юрий Владимирович; Bayukov, O. A.; Баюков, Олег Артемьевич; Shokhrina, A. O.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Vasiliev, A. D.; Васильев, Александр Дмитриевич; Nanophysics and Nanoelectronics, International Symposium(27 ; 13-16 March 2023 ; Nizhny Novgorod, Russia)
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Study of magnetic iron oxide nanoparticles coated with silicon oxide by ferromagnetic method / I. G. Vazhenina, S. V. Stolyar, A. V. Tyumentsev [et al.] // Phys. Solid State. - 2023. - Vol. 65, Is. 6. - P. 884-888, DOI 10.21883/PSS.2023.06.56095.01H. - Cited References: 20. - The study was supported by grant No. 22-14-20020 provided by the Russian Science Foundation, Krasnoyarsk Regional Science Foundation . - ISSN 1063-7834. - ISSN 1090-6460
Кл.слова (ненормированные):
iron oxide nanoparticles -- ferromagnetic resonance -- superparamagnetism -- blocking temperature
Аннотация: agnetic nanoparticles of magnetite with a size of ~8 nm synthesized with a different type of coating were studied by ferromagnetic resonance in the temperature range from 7 to 300 K. The features of the experimental temperature dependences of the parameters of the ferromagnetic resonance curve (the magnitude of the resonant field, line width and intensity) and their approximation allowed us to estimate the values of characteristic temperatures. Firstly, the value of the Vervey temperature and the dependence of its value on the type of coating were determined. Secondly, the temperature of transition of nanoparticles to the superparamagnetic state (blocking temperature) and the temperature range within which the magnetic structure of the outer shell of the magnetic nanoparticle is in the spin glass state are established.

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Публикация на русском языке Исследование магнитных наночастиц оксида железа, покрытых оксидом кремния, методом ферромагнитного резонанса [Текст] / И. Г. Важенина, С. В. Столяр, А. В. Тюменцева [и др.]. - 5 с. // Физ. твердого тела. - 2023. - Т. 65 Вып. 6. - С. 923-927

Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB, Russian Academy of Sciences, Krasnoyarsk, Russia
Siberian Federal University, Krasnoyarsk, Russia
Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russia
Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russia
Krasnoyarsk State Medical University named after Prof. V.F. Voyno-Yasenetsky, Ministry of Health of Russia, Krasnoyarsk, Russia

Доп.точки доступа:
Vazhenina, I. G.; Важенина, Ирина Георгиевна; Stolyar, S. V.; Tyumentsev, A. V.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Pyankov, V. F.; Nikolaeva, E. D.; Nanophysics and Nanoelectronics, International Symposium(27 ; 13-16 March 2023 ; Nizhny Novgorod, Russia)
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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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Ignatchenko, V. A.
High-frequency susceptibility of the ferromagnetic resonance in thin films with random one- and two-dimensional inhomogeneities in the magnetic anisotropy / V. A. Ignatchenko, D. S. Tsikalov, D. S. Polukhin // J. Exp. Theor. Phys. - 2023. - Vol. 136, Is. 1. - P. 39-45, DOI 10.1134/S1063776123010041. - Cited References: 26. - This work was supported in part by the Russian Foundation for Basic Research, by the Government of the Krasnoyarsk region, and by the Krasnoyarsk Regional Science Foundation (project no. 20-42-240010) . - ISSN 1063-7761. - ISSN 1090-6509
Аннотация: The effect of random one- (1D) and two-dimensional (2D) inhomogeneities of the magnetic anisotropy on the shape and width of ferromagnetic resonance line in a thin film has been studied in the standard and new self-consistent approximations. It has been shown that resonance peaks in the case of 2D inhomogeneities are much narrower than those for 1D ones. Peaks are asymmetric in both the 1D and 2D cases, but asymmetry is larger in the latter case. As the correlation wavenumber of inhomogeneities kc increases, the width of a resonance line decreases and its amplitude increases. The amplitude of the FMR peak for 2D inhomogeneities increases much faster than that for 1D inhomogeneities. At the critical dimensionless parameter kcd/π ~ 1, where d is the thickness of the film, the width of the resonance line has an inflection point and the asymmetry of this line and the shift of the ferromagnetic resonance peak are maximal. It has been shown that the new self-consistent approximation reproduces the shape of the resonance line much better than the standard self-consistent approximation.

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Публикация на русском языке Игнатченко, Вальтер Алексеевич. Высокочастотная восприимчивость ферромагнитного резонанса в тонких пленках со случайными 1D- и 2D-неоднородностями величины магнитной анизотропии [Текст] / В. А. Игнатченко, Д. С. Цикалов, Д. С. Полухин // Журн. эксперим. и теор. физ. - 2023. - Т. 163 Вып. 1. - С. 50-57

Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036, Krasnoyarsk, Russia

Доп.точки доступа:
Tsikalov, D. S.; Цикалов, Денис Сергеевич; Polukhin, D. S.; Полухин, Дмитрий Сергеевич; Игнатченко, Вальтер Алексеевич; Eurasian Symposium “Trends in Magnetism”(8 ; 22-26 August 2022 ; Kazan, Russia)
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An effective method of magnetic hyperthermia based on the ferromagnetic resonance phenomenon / S. V. Stolyar, O. A. Li, E. D. Nikolaeva [et al.] // Phys. Met. Metallogr. - 2023. - Vol. 124, Is. 2. - P. 174-180, DOI 10.1134/S0031918X22601834. - 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 . - ISSN 0031-918X. - ISSN 1555-6190
Кл.слова (ненормированные):
ferromagnetic resonance -- cobalt ferrite -- nickel ferrite -- magnetic hyperthermia
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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Публикация на русском языке Эффективный способ магнитной гипертермии, основанный на явлении ферромагнитного резонанса [Текст] / С. В. Столяр, О. А. Ли, Е. Д. Николаева [и др.] // Физ. металлов и металловед. - 2023. - Т. 124 № 2. - С. 182-189

Держатели документа:
Federal Research Center, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia
Siberian Federal University, 660041, Krasnoyarsk, Russia
Institute of Physics, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia

Доп.точки доступа:
Stolyar, S. V.; Li, O. A.; Nikolaeva, E. D.; Vorotynov, A. M.; Воротынов, Александр Михайлович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Knyazev, Yu. V.; Князев, Юрий Владимирович; Bayukov, O. A.; Баюков, Олег Артемьевич; Iskhakov, R. S.; Исхаков, Рауф Садыкович; P’yankov, V. F.; Volochaev, M. N.; Волочаев, Михаил Николаевич
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10.

Features of the magnetic state of an ordered array of ferromagnetic ribbons / V. A. Orlov, R. Yu. Rudenko, A. V. Luk’yanenko [et al.] // Phys. Met. Metallogr. - 2023. - Vol. 124, Is. 2. - P. 109-117, DOI 10.1134/S0031918X22601780. - Cited References: 35. - In the part of sample preparations, this study was supported by the Russian Foundation for Basic Research within research project no. 20-02-00696. The magnetic measurements and theoretical calculations were performed within the framework of State assignment from the Ministry of Science and Higher Education of the Russian Federation (topic no. FSRZ-2020-0011) . - ISSN 0031-918X. - ISSN 1555-6190
Кл.слова (ненормированные):
magnetic domain wall -- magnetic vortex -- ferromagnetic ribbon
Аннотация: The features of the magnetic state of an array of parallel oriented permalloy ribbons are discussed. The arrays are made by explosive lithography. The ribbons have a thickness of 180 nm, a width of 2.8 µm, and a length of about 4 mm. The distance between ribbons in different samples varies in the range from 300 nm to 4 μm. It is found that the ribbons in the regions far from the end faces are in a single-domain state with small-angle ripples, the magnetization distribution of which correlates with inhomogeneities of the ribbon side surfaces. Moreover, there is a distinct relationship in the spatial distribution of the ripples between adjacent ribbons with a relatively small distance between them. This makes it possible to evaluate the role of the magnetostatic coupling of magnetic subsystems of array elements and to estimate the characteristic value of the random stray field that pins the magnetization.

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Публикация на русском языке Особенности магнитного состояния упорядоченного массива ферромагнитных лент [Текст] / В. А. Орлов, Р. Ю. Руденко, А. В. Лукьяненко [и др.] // Физ. металлов и металловед. - 2023. - Т. 124 № 2. - С. 117-125

Держатели документа:
Siberian Federal University, 660041, Krasnoyarsk, Russia
Kirenskii Institute of Physics, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia
Astaf’ev Krasnoyrsk State Pedagogical University, 660049, Krasnoyarsk, Russia

Доп.точки доступа:
Orlov, V. A.; Орлов, Виталий Александрович; Rudenko, R. Yu.; Luk'yanenko, A. V.; Лукьяненко, Анна Витальевна; Yakovchuk, V. Yu.; Яковчук, Виктор Юрьевич; Komarov, V. A.; Комаров, Василий Андреевич; Prokopenko, V. S.; Orlova, I. N.
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11.

Описание изобретения к патенту 2797721


    Измерительная ячейка широкополосного спектрометра ферромагнитного резонанса / А. В. Бурмитских, И. В. Подшивалов, Н. М. Боев [и др.]. - № 2022132124 ; Заявл. 08.12.2022 ; Опубл. 08.06.2023 // Изобретения. Полезные модели : офиц. бюл. Фед. службы по интеллектуал. собственности (Роспатент). - 2023. - № 16
   Перевод заглавия: Measuring cell of a broadband ferromagnetic resonance spectrometer
Аннотация: Изобретение относится к измерительной технике и предназначено для неразрушающего контроля качества магнитных пленок и изученияих высокочастотных характеристик путемрегистрации спектров ферромагнитного резонанса тонкопленочных образцов в широкой полосе частот. Технический результат - повышение верхней рабочей частоты ячейки и упрощение процедуры смены исследуемого образца. Измерительная ячейка широкополосного спектрометра ферромагнитного резонанса содержит короткозамкнутую несимметричную полосковую линию, размещенную в электромагнитном экране, и СВЧ-разъем, расположенный перпендикулярно полосковой линии. Электромагнитным экраном является замкнутый металлический корпус ячейки, с верхней стороны которого расположен СВЧразъем, а в нижней части боковой стороны имеется отверстие для установки исследуемого образца тонкой магнитной пленки в зазор между отрезком несимметричной полосковой линии и экраном, причем размеры отверстия больше габаритных размеров исследуемого образца. 5 ил.

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Институт физики им. Л. В. Киренского СО РАН

Доп.точки доступа:
Бурмитских, Антон Владимирович; Burmitskikh, A. V.; Подшивалов, Иван Валерьевич; Podshivalov, I. V.; Боев, Никита Михайлович; Boev, N. M.; Горчаковский, Александр Антонович; Клешнина, Софья Андреевна; Kleshnina, S. A.; Крёков, Сергей Дмитриевич; Соловьев, Платон Николаевич; Solovev, P. N.; Изотов, Андрей Викторович; Izotov, A. V.; Негодеева, Ирина Александровна; Скоморохов, Георгий Витальевич; Skomorokhov, G. V.; Федеральный исследовательский центр "Красноярский научный центр Сибирского отделения Российской академии наук"; Федеральная служба по интеллектуальной собственности (Роспатент); Федеральный институт промышленной собственности
}
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12.

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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13.

Preparation and properties of magnetic composites γ-Fe2O3/SiO2/aptamer(FAS9) for magnetic resonance hyperthermia / S. V. Stolyar, O. A. Li, E. D. Nikolaeva [et al.] // Phys. Met. Metallogr. - 2023. - Vol. 124, Is. 14. - P. 1689-1696, DOI 10.1134/S0031918X23601439. - Cited References: 27 . - ISSN 0031-918X. - ISSN 1555-6190
Кл.слова (ненормированные):
ferromagnetic resonance -- magnetic hyperthermia -- maghemite
Аннотация: Powders of maghemite γ-Fe2O3 with an average diameter of 8 nm, γ-Fe2O3/SiO2 composites with an agglomerate diameter of about 50 nm and a size of interspersed γ-Fe2O3 particles of 6 nm, and γ‑Fe2O3/SiO2/aptamer(FAS9) composites were synthesized by chemical deposition. Mössbauer spectra were measured, the static and dynamic magnetic properties of the powders were studied, and the coercive force was determined, which decreases from 14 Oe for γ-Fe2O3 powders to 3 Oe for the γ-Fe2O3/SiO2 composite. It is shown that the particle blocking temperature is close to room temperature. The increment of temperature of the powders was measured in the ferromagnetic resonance mode; the temperature of the Fe2O3/SiO2 composite (ΔT ≈ 16°C) turned out to be higher than that of the pure γ-Fe2O3 powder (ΔT ≈ 10°C). It has been experimentally shown that temperature increment ΔT is proportional to the square of the microwave field amplitude. It has been shown that the composition γ-Fe2O3/SiO2/aptamer FAS9 is able to effectively bind to tumor cells, and FMR hyperthermia leads to a decrease in the viability of tumor cells.

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Держатели документа:
Federal Research Center, Krasnoyarsk Science Center, Siberian Branch of the Russian Academy of Sciences, 660036, Krasnoyarsk, Russia
Siberian Federal University, 660041, Krasnoyarsk, Russia
Kirensky Institute of Physics, Federal Research Center KSC, Siberian Branch Russian Academy of Sciences, 660036, Krasnoyarsk, Russia

Доп.точки доступа:
Stolyar, S. V.; Столяр, Сергей Викторович; Li, O. A.; Nikolaeva, E. D.; Vorotynov, A. M.; Воротынов, Александр Михайлович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Knyazev, Yu. V.; Князев, Юрий Владимирович; Bayukov, O. A.; Баюков, Олег Артемьевич; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Kryukova, O. V.; Pyankov, V. F.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Mokhov, A. A.
}
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14.

Ferromagnetic silicides and germanides epitaxial films and multilayered hybrid structures: Synthesis, magnetic and transport properties / A. S. Tarasov, A. V. Lukyanenko, I. A. Yakovlev [et al.] // Bull. Russ. Acad. Sci.: Phys. - 2023. - Vol. 87, Suppl. 1. - P. S133-S146, DOI 10.1134/S1062873823704518. - Cited References: 54. - The authors thank the laboratory of Magnetic MAX Materials created under Megagrant project (agreement no. 075-15-2019-1886) for providing experimental equipment and the Collective Use Center at the Krasnoyarsk Scientific Center (Siberian Branch, Russian Academy of Sciences) for assistance. The authors also thank Professor B.A. Belyaev for FMR calculations. - Supported by the Russian Science Foundation, grant no. 23-22-10033, https://rscf.ru/project/23-22-10033/, Krasnoyarsk Regional Fund of Science . - ISSN 1062-8738. - ISSN 1934-9432
Кл.слова (ненормированные):
iron silicide -- manganese germanide -- MBE -- FMR -- electronic transport -- spintronics
Аннотация: Planar and vertical hybrid structures, which combine ferromagnetic and semiconductor layers are essential for implementation and study of spin transport phenomena in semiconductors, which is crucial for the advancement and development of spintronics. We have developed approaches for the synthesis of Fe3 + xSi1 – x epitaxial thin films and demonstrated the spin accumulation effect in multiterminal devices based on Fe3 + xSi1 – x/Si. Fe3 + xSi1 – x/Ge/Fe3Si and Fe3 + xSi1 – x/Ge/Mn5Ge3 multilayer hybrid structures were synthesized on a Si(111) substrate, study of their structural, magnetic and transport properties were performed. The effect of synthesis conditions on the growth of epitaxial structures and on their magnetic and transport properties was discussed. The results obtained may prove valuable in the development and fabrication of spintronic devices.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center “Krasnoyarsk Scientific Center”, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, 660041, Krasnoyarsk, Russia
Federal Research Center “Krasnoyarsk Scientific Center”, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia

Доп.точки доступа:
Tarasov, A. S.; Тарасов, Антон Сергеевич; Lukyanenko, A. V.; Лукьяненко, Анна Витальевна; Yakovlev, I. A.; Яковлев, Иван Александрович; Tarasov, I. A.; Тарасов, Иван Анатольевич; Bondarev, I. A.; Бондарев, Илья Александрович; Sukhachev, A. L.; Сухачев, Александр Леонидович; Shanidze, L. V.; Шанидзе, Лев Викторович; Smolyakov, D. A.; Смоляков, Дмитрий Александрович; Varnakov, S. N.; Варнаков, Сергей Николаевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Volkov, N. V.; Волков, Никита Валентинович
}
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15.

    Орлов, Виталий Александрович.
    Ферромагнитный резонанс в многослойных soft/hard/sof пленках / В. А. Орлов, Г. С. Патрин, Я. Г. Шиян // 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. 87-89, DOI 10.26516/978-5-9624-2178-0.2023.1-207. - Библиогр.: 8 . - ISBN 978-5-962402178-0
   Перевод заглавия: Ferromagnetic resonance in multilayer soft/hard/soft films

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Держатели документа:
Институт физики им. Л. В. Киренского СО РАН
Сибирский федеральный университет

Доп.точки доступа:
Аплеснин, Сергей Степанович \чл. прогр. ком.\; Aplesnin, S. S.; Балаев, Дмитрий Александрович \чл. прогр. ком.\; Balaev, D. A.; Овчинников, Сергей Геннадьевич \чл. прогр. ком.\; Ovchinnikov, S. G.; Исхаков, Рауф Садыкович \чл. орг. ком.\; Iskhakov, R. S.; Патрин, Геннадий Семёнович; Patrin, G. S.; Шиян, Ярослав Германович; Shiyan, Ya. G.; Orlov, V. A.; Байкальская международная конференция "Магнитные материалы. Новые технологии"(9 ; 2023 ; сент. ; 11-14 ; Байкальск); "Магнитные материалы. Новые технологии", Байкальская международная конференция(9 ; 2023 ; сент. ; 11-14 ; Байкальск); "Magnetic materials. New tecnologies", Baikal International Conference(9 ; 2023 ; Sept. ; 11-14 ; Baikalsk); Иркутский государственный университет
}
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16.

    Ферромагнитный резонанс в суперпарамагнитных частицах NiFe2O4 / С. В. Столяр, О. А. Ли, Е. Д. Николаева [и др.] // 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. 47-48. - Библиогр.: 4 . - ISBN 978-5-962402178-0
   Перевод заглавия: Ferromagnetic resonance in superparamagnetic particles NiFe2O4

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Держатели документа:
Сибирский федеральный университет
Красноярский научный центр СО РАН
Институт физики им. Л. В. Киренского СО РАН

Доп.точки доступа:
Аплеснин, Сергей Степанович \чл. прогр. ком.\; Aplesnin, S. S.; Балаев, Дмитрий Александрович \чл. прогр. ком.\; Balaev, D. A.; Овчинников, Сергей Геннадьевич \чл. прогр. ком.\; Ovchinnikov, S. G.; Исхаков, Рауф Садыкович \чл. орг. ком.\; Iskhakov, R. S.; Столяр, Сергей Викторович; Stolyar, S. V.; Ли, О.А.; Николаева, Е. Д.; Исхаков, Рауф Садыкович; Боев, Никита Михайлович; Boev, N. M.; Шохрина, А. О.; Байкальская международная конференция "Магнитные материалы. Новые технологии"(9 ; 2023 ; сент. ; 11-14 ; Байкальск); "Магнитные материалы. Новые технологии", Байкальская международная конференция(9 ; 2023 ; сент. ; 11-14 ; Байкальск); "Magnetic materials. New tecnologies", Baikal International Conference(9 ; 2023 ; Sept. ; 11-14 ; Baikalsk); Иркутский государственный университет
}
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17.

Ferromagnetic resonance: a new method for the implementation of magnetic hyperthermia / S. V. Stolyar, E. D. Nikolaeva, A. M. Vorotynov [et al.] // V International Baltic Conference on Magnetism. IBCM : Book of abstracts. - 2023. - P. 51

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

Доп.точки доступа:
Stolyar, S. V.; Столяр, Сергей Викторович; Nikolaeva, E. D.; Vorotynov, A. M.; Воротынов, Александр Михайлович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Kryukova, O. V.; Pyankov, V. F.; Ladygina, V. P.; Boev, N. M.; Боев, Никита Михайлович; International Baltic Conference on Magnetism(5 ; 2023 ; Aug. 20-24 ; Svetlogorsk, Russia); Балтийский федеральный университет им. И. Канта
}
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18.

    Solid-state synthesis, structural and magnetic characterization of ferromagnetic phases in 24Ga/76Fe(0 0 1), 40Ga/60Fe(0 0 1) and 60Ga/40Fe(0 0 1) bilayers / V. G. Myagkov, L. E. Bykova, V. S. Zhigalov [et al.] // J. Magn. Magn. Mater. - 2022. - Vol. 561. - Ст. 169709, DOI 10.1016/j.jmmm.2022.169709. - Cited References: 77. - 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» . - ISSN 0304-8853
   Перевод заглавия: Твердотельный синтез, структурные и магнитные характеристики ферромагнитных фаз в бислоях 24Ga/76Fe(0 0 1), 40Ga/60Fe(0 0 1) и 60Ga/40Fe(0 0 1)
Кл.слова (ненормированные):
Fe100-xGax alloys -- Thin film -- Annealing -- Solid-state reaction -- Magnetic properties -- Fe - Ga phase diagram
Аннотация: The A2, B2, D03 phases and dispersive nanoprecipitates play key roles in the nature of super-functional properties, such as the large and sensitive magnetostriction, in Fe100-xGax alloys. However, the temperature conditions for the occurrence of the chemical interaction between Fe and Ga, leading to the synthesis of these phases and nanoprecipitates, remain completely unexplored. Herein we first report results of the start of the chemical interaction at the Ga/Fe(0 0 1) interface and the structural and magnetic phase transformations in 24Ga/76Fe(0 0 1), 40Ga/60Fe(0 0 1) and 60Ga/40Fe(0 0 1) bilayers from room temperature to 800 °C. For all bilayers the magnetic ordered D03 phase is the first phase which is formed at the Ga/Fe(0 0 1) interface at ∼ 375 °C. When the annealing temperature is increased above 580 °C in 24Ga/76Fe(0 0 1) samples the epitaxial D03(0 0 1) layer begins to develop into the epitaxial magnetic ordered B2(0 0 1) layer, which remains after annealing to 800 °C. In 40Ga/60Fe(0 0 1) samples the epitaxial D03(0 0 1) layer evolves into the epitaxial B2(0 0 1) layer and a new epitaxial layer with interplanar spacing 0.1484 nm (L60ʹ), which has close reflections with L60 nanoprecipitates. The L60ʹ phase exhibits unique magnetic properties, including a large magnetic fourfold anisotropy constant of ∼ 7·105 erg/cm3 and 8-fold anisotropy. The solid-state reactions in 60Ga/40Fe(0 0 1) samples start with the synthesis of D03 nanograins embedded in amorphous phases, whose peaks are centered on D03(0 0 4) and Fe(0 0 2) reflections. Above 700 °C the amorphous phases partially crystallize and the epitaxial magnetic L60ʹ and ordered B2(0 0 1) phases emerge. Dewetting and unidentified secondary precipitations are observed in all samples and their influence on the magnetic properties is discussed. Our results demonstrate not only the complex nature of initial stage Fe100-xGax alloy synthesis, but also predict the low-temperature transformation at ∼ 375 °C in the Fe - Ga phase diagram.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok 50/38, Krasnoyarsk, 660036, Russian Federation
Reshetnev Siberian State University of Science and Technology, Krasnoyarsky Rabochiy 31, Krasnoyarsk, 660000, Russian Federation
Institute of Chemistry and Chemical Technology, Federal Research Center KSC SB RAS, Akademgorodok 50/24, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Myagkov, V. G.; Мягков, Виктор Григорьевич; Bykova, L. E.; Быкова, Людмила Евгеньевна; Zhigalov, V. S.; Жигалов, Виктор Степанович; Kokh, D.; Кох, Д.; Mikhlin, Y. L.; Matsynin, A. A.; Мацынин, Алексей Александрович; Bondarenko, G. N.
}
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19.

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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20.

    Magnetic frequency doubler / I. V. Govorun, A. O. Afonin, A. V. Ugryumov [et al.] // 23rd IEEE International Conference of Young Professionals in Electron Devices and Materials, EDM 2022 : (30 June - 4 July 2022, Altai) : IEEE Computer Society, 2022. - Vol. 2022-June. - P. 135-139, DOI 10.1109/EDM55285.2022.9855072. - Cited References: 10. - This work was supported by the Russian Science Foundation under Grant No. 19-72-10047. The equipment of the Krasnoyarsk Regional Center of Research Equipment of Federal Research Center “Krasnoyarsk Science Center SB RAS” was used during the measurement
   Перевод заглавия: Магнитный умножитель частоты
Кл.слова (ненормированные):
ferromagnetic resonance -- frequency doubling -- microstrip resonator -- thin magnetic film -- Halbach array
Аннотация: This article presents the compact magnetic frequency doubler based on a quarter-wavelength stepped-impedance microstrip resonator with a 125-nm-thick permalloy (Ni 70 Fe 30 ) magnetic film. For the first time, the implementation of a frequency doubler operating at the high-field peak is shown. To produce a uniform magnetic field in the thin magnetic film plane, the magnetic system consisting of individual permanent magnets and based on the circular Halbach array was developed. The uniformity of the magnetic field in the region of 10×10 mm2 was 4.9%. Two bandpass filters were developed. The input filter serves to purify the input signal from parasitic harmonics. The output filter blocks the input signal in the resonator. The resonator, magnetic system, input and output filters are integrated into a single device. The maximum measured conversion efficiency was 0.97% (at 1 GHz) at the input power of 4800 mW. The −3 dB fractional bandwidth of the magnetic frequency doubler was 2.15%.

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Держатели документа:
Kirensky Institute of Physics, Laboratory of Scientific Instrumentation, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Laboratory of Electrodynamics and Microwave Electronics, Krasnoyarsk, Russian Federation
Siberian Federal University, Institute of Engineering Physics and Radio Electronics, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Govorun, I. V.; Говорун, Илья Валерьевич; Afonin, A. O.; Афонин, Алексей Олегович; Ugryumov, A. V.; Угрюмов, Андрей Витальевич; Solovev, P. N.; Соловьев, Платон Николаевич; Leksikov, An. A.; Лексиков, Андрей Александрович; Boev, N. M.; Боев, Никита Михайлович; International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices(23 ; 2022 ; Jun.-Jul. ; Altai)
}
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