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A magnetometer of weak quasi-stationary and high-frequency fields on resonator microstrip transducers with thin magnetic fields / A. N. Babitskii [et al.] // Instrum. Exp. Tech. - 2016. - Vol. 59, Is. 3. - P. 425-432, DOI 10.1134/S0020441216030131. - Cited References: 23. - This study was performed within the framework of the State Job of the Ministry of Education and Science of the Russian Federation for the research at the Siberian Federal University in 2014 (project no. 3.528.2014K). . - ISSN 0020-4412

РУБ Engineering, Multidisciplinary + Instruments & Instrumentation
Рубрики:
Ferromagnetic-resonance
   Films
   Susceptibility
   Anisotropy
   Sensors
   Trends
Аннотация: A high-sensitivity magnetometer for simultaneous measurements of three components of a weak quasi-stationary or high-frequency magnetic-field vector was developed and investigated. Microstrip structures that are based on irregular resonators serve as the magnetometer transducers. An anisotropic thin-film magnetic structure is used as the sensing element. This structure consists of two thin magnetic films that are prepared by magnetron sputtering of a Ni75Fe25 permalloy target and separated by a silicon monoxide layer. It is demonstrated that the transducer exhibits the maximum sensitivity, when the easy magnetization axis of the film structure is orthogonal to the polarization direction of the pumping microwave magnetic field in the microstrip resonator and at an optimal value of a constant magnetic bias field and its optimal deflection from the pumping-field polarization direction which is parallel to it. The magnetometer is characterized by a wide dynamic range of measured magnetic fields, 10–10–10–4 Т, and a wide frequency range, 10–1–105 Hz. © 2016, Pleiades Publishing, Inc.

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Публикация на русском языке Магнитометр слабых квазистационарных и высокочастотных полей на резонансных микрополосковых преобразователях с тонкими магнитными пленками [Текст] / А. Н. Бабицкий [и др.] // Приборы и техн. эксперим. : Наука, 2016. - № 3. - С. 96-104

Держатели документа:
Kirensky Institite of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, str. 38, Krasnoyarsk, Russian Federation
Siberian Federal University, pr. Svobodnyi 79, Krasnoyarsk, Russian Federation
Reshetnev Siberian State Aerospace University, pr. Im. Gazety Krasnoyarskii rabochii 31, Krasnoyarsk, Russian Federation
OAO NPP Radiosvyaz’, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Babitskii, A. N.; Belyaev, B. A.; Беляев, Борис Афанасьевич; Boev, N. M.; Боев, Никита Михайлович; Skomorokhov, G. V.; Скоморохов, Георгий Витальевич; Izotov, A. V.; Изотов, Андрей Викторович; Galeev, R. G.
}
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    Automated measuring system for studying ferromagnetic resonance spectra in the radio frequency range / A. V. Burmitskikh, B. A. Belyaev, N. M. Boev, S. A. Kleshnina // Ural symposium on biomedical engineering, radioelectronics and information technology (USBEREIT) : Proceedings / Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology (2021 ; May 13-14 ; Yekaterinburg (Hybrid event)) : IEEE, 2021. - P. 0267-0271DOI 10.1109/USBEREIT51232.2021.9455019. - Cited References: 13
   Перевод заглавия: Автоматизированная измерительная система для исследования спектров ферромагнитного резонанса в радиочастотном диапазоне
Аннотация: The automated system for measuring ferromagnetic resonance spectra in the radio frequency range has been developed for measuring magnetic characteristics of thin films. The system allows measuring the spectrum of ferromagnetic resonance at a frequency of 12 MHz with a field step of 0.01 Oe (constant or variable) and with 0.0125° angle resolution. Automatic determination of the anisotropy field and automatic sensitivity adjustment of the measuring system allows obtaining data from permalloy thin magnetic films samples with thickness less than 50 nm. Measurements can be carried out with different directions of external magnetic fields (in the plane of the TMF sample) and with rotation of the sample in the external magnetic field. This is achieved by the independent automatic rotation of the sample and high-frequency Helmholtz coils. Processing and transmission of the received data in the digital form provides automatic processing and representation of measurement results on the PC screen. The measurement results can be used for TMF study, assessing the quality, rejection and further use in finished devices.

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Доп.точки доступа:
Burmitskikh, A. V.; Бурмитских, Антон Владимирович; Belyaev, B. A.; Беляев, Борис Афанасьевич; Boev, N. M.; Боев, Никита Михайлович; Kleshnina, S. A.; Клешнина, Софья Андреевна; Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology(2021 ; May 13-14 ; Yekaterinburg (Hybrid event)); Уральский симпозиум IEEE по биомедицинской инженерии, радиоэлектронике и информационным технологиям(2021 ; 13-14 мая ; Екатеринбург)
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Automated measuring unit for analysis of thin magnetic film ferroresonance spectrum / A. V. Burmitskikh [et al.] // International Siberian Conference on Control and Communications, SIBCON 2019 : Proceedings : IEEE, 2019. - Ст. 8729594, DOI 10.1109/SIBCON.2019.8729594. - Cited References: 6
Кл.слова (ненормированные):
Ferroresonance -- Magnetic films -- Magnetic sensors -- Magnetometers -- Permeability measurement
Аннотация: This paper considers hardware and software for automated analysis of thin magnetic film ferroresonance spectrum to determine the rate of growth and decrease in ferroresonance spectrum (conversion factor parameter). The measuring element of automated system is the strip line which is short-circuited. The measuring unit is used to study Ni 80 Fe 20 permalloy films, with thickness of more than 300 Å. Conversion factor, magnetic permeability μ, uniaxial magnetic anisotropy, ferromagnetic spectrum resonance line width, saturation magnetization are analyzed from 50 MHz to 2 GHz frequency range. The magnetic films are used to design frequency selective filters, phase shifters and weak-field magnetic sensors. The thin magnetic film sensors are high sensitive magnetometers, with wide frequency range, low dimensions and weight [1]. © 2019 IEEE.

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

Доп.точки доступа:
Burmitskikh, A. V.; Бурмитских, Антон Владимирович; Boev, N. M.; Боев, Никита Михайлович; Izotov, A. V.; Andyuseva, V. G.; International Siberian Conference on Control and Communications(14 ; 2019 ; April 18-20 ; Tomsk)
}
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Burmitskikh, A. V.
Measurement of thin film magnetic characteristics in the radio frequency range / A. V. Burmitskikh, N. M. Boev, S. A. Kleshnina // SIBCON 2021 - International Siberian Conference on Control and Communications : IEEE, 2021. - Ст. 9438908, DOI 10.1109/SIBCON50419.2021.9438908. - Cited References: 21. - The reported study was funded by RFBR, project number 19-32-90066\19
Кл.слова (ненормированные):
ferromagnetic resonance -- thin magnetic film -- autodyne detector
Аннотация: The paper presents a method for measuring the ferromagnetic resonance spectrum in the radio frequency range (4 MHz). A high-frequency generator operating in the autodyne mode was used to measure the magnetic characteristics of thin ferromagnetic films. Theoretical equations for ferromagnetic resonance excitations have been presented. Experimental results for the samples of nanocrystalline thin permalloy magnetic films with low magnetostriction and different values of the anisotropy field were obtained. Ferromagnetic resonance in the radio frequency range proved to be an excellent mean for measuring the value and direction of the magnetic anisotropy field in thin magnetic films.

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

Доп.точки доступа:
Boev, N. M.; Боев, Никита Михайлович; Kleshnina, S. A.; Клешнина, Софья Андреевна; Бурмитских, Антон Владимирович; International Siberian Conference on Control and Communications(15 ; 2021 ; May 13-15 ; Kazan, Russia)
}
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Compact non-linear power amplifier for wideband underwater and underground near-field magnetic communication systems / B. A. Belyaev [et al.] // International Siberian Conference on Control and Communications, SIBCON 2019 : Proceedings : IEEE, 2019. - Ст. 8729580, DOI 10.1109/SIBCON.2019.8729580. - Cited References: 6. - This work was supported by the Ministry of Education and Science of the Russian Federation, Task no. 3.1031.2017/PCh.
Кл.слова (ненормированные):
Magneto-inductive communications -- Near-field communications -- Power amplifier -- Underground communications -- Underwater communications
Аннотация: The paper describes a non-linear power amplifier developed for mobile wideband transceivers of near-field magnetic communication systems. The power amplifier has following parameters: voltage range - up to 200 V; power consumption - up to 200 W; maximum load current - up to 100 A; maximum frequency - 200 kHz; overall dimensions - 100x100x40 mm and weight - ~200 g (without heat sink). Mobile near-field magnetic communication systems equipped with such amplifier are able to provide a voice communication range up to 150 m. The systems can be employed in constructing of various underwater and underground communication networks, for example, in mines or for divers. Results of near-field communication system field testing with the developed non-linear power amplifier are shown. The authors propose a simple algorithm for the main parameters of the power amplifier and the transmitter antenna selection.

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

Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Babitskii, A. N.; Бабицкий, Александр Николаевич; Boev, N. M.; Боев, Никита Михайлович; Izotov, A. V.; Изотов, Андрей Викторович; Sushkov, A. A.; Korolev, E. V.; Burmitskikh, A. V.; International Siberian Conference on Control and Communications(14 ; 2019 ; April 18-20 ; Tomsk)
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Demountable K/Q band coaxial feed for Cassegrain antenna / K. V. Lemberg, N. M. Boev, A. V. Kantyshev [et al.] // 2022 IEEE International Multi-Conference on Engineering, Computer and Information Sciences, SIBIRCON 2022 : IEEE, 2022. - P. 1150-1153, DOI 10.1109/SIBIRCON56155.2022.10016929. - Cited References: 11
Кл.слова (ненормированные):
coaxial waveguides -- coaxial joint -- reflector antenna feeds -- dual-band feeds -- multiband antennas -- satellite communication
Аннотация: In this paper demountable K/Q bands feed for satellite communication Cassegrain antenna is reported. The feed is based on the combined coaxial-circular waveguide, in which outer wall of a circular waveguide is used as an inner conductor of a coaxial waveguide. This design allows to simultaneously transmit and receive signals in two widely separated frequency bands. A coaxial joint, which is the key part of the feed, is proposed and described in details. The joint performs several functions. First is to transmit the microwave energy through both waveguides. Second is ensuring the waveguides sealing. And third is ensuring the circular and coaxial waveguides alignment. The joint simulation results demonstrated return loss below-20 dB and insertion loss less than 0.06 dB in 20-21 GHz frequency range (K-band) as well as return loss below-30 dB and insertion loss less than 0.15 dB in 43-45.5 GHz frequency range (Q-band). Mechanical prototype of the joint was manufactured and tested.

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Держатели документа:
Scientific Instruments Lab, Kirensky Institute of Physics, Krasnoyarsk, Russian Federation
Space Systems Design Office, JSC Information Satellite Systems, Zheleznogorsk, Russian Federation

Доп.точки доступа:
Lemberg, K. V.; Лемберг, Константин Вячеславович; Boev, N. M.; Боев, Никита Михайлович; Kantyshev, A. V.; Grican, O. B.; Shabanov, D. A.; Шабанов, Дмитрий Александрович; IEEE International Multi-Conference on Engineering, Computer and Information Sciences 2022(1-13 November 2022 ; Yekaterinburg, Russian Federation)
}
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Domain structure and magnetization reversal in multilayer structures consisting of thin permalloy films separated with nonmagnetic interlayers / B. A. Belyaev, N. M. Boev, A. V. Izotov, P. N. Solovev // Russ. Phys. J. - 2021. - Vol. 64, Is. 6. - P. 1160-1167, DOI 10.1007/s11182-021-02436-w. - Cited References: 30. - This work was financially supported by the Ministry of Science and Higher Education under agreement No. 075-11-2019-054 November 22, 2019 . - ISSN 1064-8887. - ISSN 1573-9228

РУБ Physics, Multidisciplinary
Рубрики:
MICROMAGNETIC CALCULATION
   MAGNETOMETER
   SIMULATION
   NOISE
Кл.слова (ненормированные):
micromagnetic modeling -- multilayer magnetic film -- domain structure -- hysteresis loop -- microstrip resonator -- magnetic field sensor
Аннотация: Using numerical micromagnetic modeling, we have investigated the development of domain structure and magnetization reversal in multilayer thin-film structures. The permalloy (Ni80Fe20) magnetic layers had the inplane uniaxial and perpendicular magnetic anisotropy. We found that as the thickness of nonmagnetic interlayers decreases, the in-plane configuration of magnetic moments in the permalloy layers transforms from a single domain state to stripe domains, which is caused by the increase of magnetostatic interaction between layers. In structures with "thick" interlayers, even weak magnetostatic interaction enforces the neighboring single domain permalloy layers to have opposite orientations of magnetic moments. The saturation field of such samples increases linearly with the number of layers. By analyzing the dynamic characteristics of multilayers, we determined the optimum number of layers ensuring the maximum conversion efficiency of wideband microwave microstrip sensors of weak magnetic fields.

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Публикация на русском языке Доменная структура и процессы перемагничивания многослойных систем из тонких пленок пермаллоя с немагнитными прослойками [Текст] / Б. А. Беляев, Н. М. Боев, А. В. Изотов, П. Н. Соловьев // Изв. вузов. Физика. - 2021. - Т. 64 № 6. - С. 170-176

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

Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Boev, N. M.; Боев, Никита Михайлович; Izotov, A. V.; Изотов, Андрей Викторович; Solovev, P. N.; Соловьев, Платон Николаевич; Ministry of Science and Higher EducationMinistry of Science and Higher Education, PolandEuropean Commission
}
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    Ferromagnetic resonance line broadening and shift effect in nanocrystalline thin magnetic films: Relation with crystalline and magnetic structure / A. V. Izotov, B. A. Belyaev, N. M. Boev [et al.] // J. Alloy. Compd. - 2022. - Vol. 900. - Ст. 163416, DOI 10.1016/j.jallcom.2021.163416. - Cited References: 52. - The reported study was funded by RFBR, the Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund and JSC "NPP "Radiosviaz", project number 20-42-242901 and was supported by the Ministry of Science and Higher Education of the Russian Federation, agreement number 075-11-2019-054 dated 22.11.2019.; The electron microscopy investigations were conducted in the SFU Joint Scientific Center whose infrastructure was supported by the State assignment (#FSRZ-2020-0011) of the Ministry of Science and Higher Education of the Russian Federation . - ISSN 0925-8388. - ISSN 1873-4669
   Перевод заглавия: Уширение линии ферромагнитного резонанса и эффект сдвига в нанокристаллических тонких магнитных пленках: Связь с кристаллической и магнитной структурой

РУБ Chemistry, Physical + Materials Science, Multidisciplinary + Metallurgy & Metallurgical
Рубрики:
SUSCEPTIBILITY
   RIPPLE
   ANISOTROPIES
   ALLOYS
Кл.слова (ненормированные):
Nanocrystallite -- Magnetization ripple -- Ferromagnetic resonance (FMR) -- Two-magnon scattering process -- Micromagnetic simulation
Аннотация: With the rapid development of telecommunication technologies and highly integrated electronic devices, researchers show great interest in nanocrystalline soft magnetic thin films with unique characteristics for microwave applications. An important direction of the current research in this field is the study of high-frequency magnetization dynamics that directly depends on the damping processes in a magnetic medium. This paper reports on the effect of sharp broadening and shift of the ferromagnetic resonance (FMR) line revealed experimentally in a 40-nm-thick nanocrystalline permalloy (Fe20Ni80) thin film at a frequency of about 5 GHz. The effect arises only in films with crystallite size exceeding some critical value Dcr. The micromagnetic simulation demonstrates that exchange and dipolar interactions between randomly oriented crystallites form in the film a quasiperiodic magnetic structure with a characteristic wavelength in the range from 36 nm to 3.3 µm. An analysis of the two-magnon scattering model and simulation results shows that the formed magnetic structure provides the energy transfer from uniform magnetization oscillations (uniform FMR) to spin waves, which results in an additional energy dissipation channel and, consequently, sharp FMR line broadening. A theoretical estimate of the critical crystallite size Dcr based on this model yields a value of ~14.3 nm for 40-nm-thick Fe20Ni80 films.

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Держатели документа:
Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, 50-38 Akademgorodok, Akademgorodok 5038, Russia.

Доп.точки доступа:
Izotov, A. V.; Изотов, Андрей Викторович; Belyaev, B. A.; Беляев, Борис Афанасьевич; Boev, N. M.; Боев, Никита Михайлович; Burmitskikh, A. V.; Бурмитских, Антон Владимирович; Skomorokhov, G. V.; Скоморохов, Георгий Витальевич; Zharkov, S. M.; Жарков, Сергей Михайлович; Solovev, P. N.; Соловьев, Платон Николаевич; RFBRRussian Foundation for Basic Research (RFBR); Government of Krasnoyarsk Territory; Krasnoyarsk Regional Fund; JSC "NPP "Radiosviaz" [20-42-242901]; Ministry of Science and Higher Education of the Russian Federation [075-11-2019-054, FSRZ-2020-0011]
}
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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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10.

Frequency-field dependences of FMR in NiFe2O4 superparamagnetic powders / S. V. Stolyar, O. A. Li, E. D. Nikolaeva [et al.] // V International Baltic Conference on Magnetism. IBCM : Book of abstracts. - 2023. - P. 138. - Cited References: 4

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

Доп.точки доступа:
Stolyar, S. V.; Столяр, Сергей Викторович; Li, O. A.; Ли О.А.; Nikolaeva, E. D.; Vorotynov, A. M.; Воротынов, Александр Михайлович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Pyankov, V. F.; Boev, N. M.; Боев, Никита Михайлович; Kryukova, O. V.; International Baltic Conference on Magnetism(5 ; 2023 ; Aug. 20-24 ; Svetlogorsk, Russia); Балтийский федеральный университет им. И. Канта
}
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11.

Grain-size dependence of magnetic microstructure and high-frequency susceptibility of nanocrystalline thin films: A micromagnetic simulation study / A. V. Izotov, B. A. Belyaev, P. N. Solovev, N. M. Boev // J. Magn. Magn. Mater. - 2021. - Vol. 529. - Ст. 167856, DOI 10.1016/j.jmmm.2021.167856. - Cited References: 73. - The reported study was funded by RFBR, the Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund and JSC «NPP «Radiosviaz», project number 20-42-242901 . - ISSN 0304-8853
Кл.слова (ненормированные):
Micromagnetic simulation -- Nanocrystallites -- Local magnetic anisotropy -- Ferromagnetic resonance -- Magnetization ripple -- Two-magnon scattering process
Аннотация: The size of crystallites is one of the most important factors that determine the key characteristics of nanocrystalline thin magnetic films that make them very promising media for various applications. In this paper, using micromagnetic simulation, we study in detail the influence of the grain size on the magnetic microstructure of the films and its relation with high-frequency dynamics of magnetization. When the grain size exceeds some critical value Dcr, a sharp broadening and shift of the ferromagnetic resonance line are observed at certain frequencies of the alternating magnetic field. Using a two-magnon scattering model, it is shown that these effects are caused by the scattering of spin waves on the inhomogeneous stochastic magnetic structure—magnetization ripple. An expression for the determination of the critical size Dcr is obtained. The micromagnetic simulation results agree with the main conclusions of the static and dynamic theories of magnetization ripple and also confirmed by experimental data reported by other authors.

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

Доп.точки доступа:
Izotov, A. V.; Изотов, Андрей Викторович; Belyaev, B. A.; Беляев, Борис Афанасьевич; Solovev, P. N.; Соловьев, Платон Николаевич; Boev, N. M.; Боев, Никита Михайлович
}
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12.

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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13.

Inspection probes of a ferromagnetic resonance scanning spectrometer / B. A. Belyaev, N. M. Boev, A. A. Gorchakovsky, R. G. Galeev // Instrum. Exp. Tech. - 2021. - Vol. 64, Is. 2. - P. 277-284, DOI 10.1134/S0020441221010218. - Cited References: 24. - This study was supported by the Ministry of Science and Higher Education of the Russian Federation as part of a complex project on the development of high-technology production facilities (agreement no. 075-11-2019-054, November 22, 2019) . - ISSN 0020-4412
Кл.слова (ненормированные):
Electromagnetic waves -- Ferromagnetic materials -- Ferromagnetism -- Iron alloys -- Nickel alloys -- Probes -- Q factor measurement -- Signal to noise ratio -- Spectrometers -- Frequency ranges -- High Q factor -- Hole diameter -- Local areas -- Permalloy films -- Scanning spectrometer -- Thin magnetic films -- Ferromagnetic resonance
Аннотация: The design of inspection probes for a scanning ferromagnetic resonance spectrometer, which are designed for recording the absorption spectra of electromagnetic energy by local areas of thin magnetic films, is described. The degree of locality is determined by the diameter of the measuring hole of the probe in the range of 0.1–1.0 mm. The sensitivity of the device is significantly increased due to the miniaturization of the heterogeneous measuring resonator and its comparatively high Q factor. A set of replaceable probes makes it possible to cover the frequency range of 0.1–6.0 GHz, the signal-to-noise ratio for a probe with a hole diameter of 0.8 mm, which was measured on a permalloy film with a thickness of 5 nm, is at least 20 dB.

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Публикация на русском языке Измерительные головки сканирующего спектрометра ферромагнитного резонанса [Текст] / Б. А. Беляев, Н. М. Боев, A. A. Горчаковский, Р. Г. Галеев // Приборы и техн. эксперим. - 2021. - № 2. - С. 107-114

Держатели документа:
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660074, Russian Federation
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, 660037, Russian Federation
AO NPP Radiosvyaz, Krasnoyarsk, 660021, Russian Federation

Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Boev, N. M.; Боев, Никита Михайлович; Gorchakovsky, A. A.; Горчаковский, Александр Антонович; Galeev, R. G.
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14.

Ivanin, V. V.
The investigation of microstrip diplexer based on 2D electromagnetic crystal / V. V. Ivanin, S. A. Khodenkov, N. M. Boev // 13th Int. Sci.-Technical Conf. on Actual Problems of Electronic Instrum. Engin. (APEIE) : Conference proceedings : IEEE, 2017. - Vol. 1. - P. 476-481, DOI 10.1109/APEIE.2016.7802209. - Cited References:6. - This study was supported by the Ministry of Education and Science of the Russian Federation, grant MK-9119.2016.8 of the President of the Russian Federation for State Support of Young Russian Scientists. . -

РУБ Engineering, Electrical & Electronic + Instruments & Instrumentation

Кл.слова (ненормированные):
microstrip diplexer -- bandwidth
Аннотация: The structure of microwave diplexers based on two-dimensional (2D) electromagnetic crystals of various size has been theoretically and experimentally investigated. In the proposed devices with high-frequency selective properties two rows of microstrip quarter-wave resonators electromagnetically connected with each other and with the input of the strip conductor are used. This allows splitting the signal into two channels.

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Доп.точки доступа:
Khodenkov, S. A.; Boev, N. M.; Боев, Никита Михайлович; Ministry of Education and Science of the Russian Federation [MK-9119.2016.8]; Russian Federation for State Support of Young Russian Scientists; International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering(13 ; 2016 ; 3-6 Oct. ; Novosibirsk, Russia)
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15.

Khodenkov, S. A.
Investigation of frequency-selective properties of microwave wideband bandpass filters / S. A. Khodenkov, N. M. Boev // J. Phys. Conf. Ser. - 2017. - Vol. 929, Is. 1. - Ст. 012025, DOI 10.1088/1742-6596/929/1/012025. - Cited References: 8. - This study was supported by the Ministry of Education and Science of the Russian Federation, grant МК-9119.2016.8 of the President of the Russian Federation for State Support of Young Russian Scientists. . - ISSN 1742-6588
Кл.слова (ненормированные):
Resonators -- Frequency-selective properties -- High frequency HF -- Microwave structures -- Multimode resonators -- Quarter wave resonators -- Relative bandwidth -- Single-mode resonators
Аннотация: A new approach allowing to improve frequency-selective properties for a fixed order of N filter is suggested. In all the studies, conducted with the help of numerical electrodynamic analysis of 3D models of microstrip filters based on a multimode resonator, the same substrate with dielectric constant ϵ=2.8 and thickness h=2 mm (material - FLAN) was used in calculations. The central bandpass frequency of microwave structures f 0≈1.4 GHz was registered and as well as relative bandwidth Δf/f o≈80%. The strip conductor of central multimode resonator in six studied filters of the sixth and eighth orders has the shape of an irregular meander being electromagnetically connected with four single-mode resonators, a pair of which is located to the left of it, and the other pair is to the right. It is shown that in single-mode quarter-wave resonators building-up the number of portions of identical parallel strip conductors, connected to a screen at one end and connected with each other by a strip conductor jumper, can increase the power of suppression at low-frequency stop band by more than 15 dB, as well as near high-frequency slope of passband by more than 10 dB. Therefore, the level of maximums of return losses in the passband of wideband bandpass filter ranges within a few dB.

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Доп.точки доступа:
Boev, N. M.; Боев, Никита Михайлович; International Conference PhysicA.SPb 2016(1 - 3 November 2016 ; Saint-Petersburg, Russian Federation)
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16.

Khodenkov, S. A.
The investigation of microstrip bandpass filters with wide stop band / S. A. Khodenkov, N. M. Boev // International Conference on Actual Problems of Electron Devices Engineering, APEDE 2016 : Conference Proceedings. - 2017. - Vol. 1. - Ст. 7878917, DOI 10.1109/APEDE.2016.7878917
Кл.слова (ненормированные):
Bandpass filters -- Bandwidth -- Electron devices -- Microwave devices -- Microwave filters -- Resonators -- 3D models -- Gain suppressions -- High frequency HF -- Microstrip band-pass filter -- Stop-bands -- Wave drags -- Wide stop band -- Microstrip filters
Аннотация: Ten microstrip bandpass filters with wide high-frequency stop band are investigated with the help of the numerical electrodynamic analysis of 3D models. From each resonator bandwidth of the offered filters tuned with a relative width Δf/f0=20% is formed by one lowest oscillations mode only. However at all microwave devices the extended high-frequency stop band is observed due to large leap of lines portions wave drags. Build-up of number of resonators in filters up to 6 order is resulted by growth of the steepness of slopes bandwidth and gain suppression of power at frequencies of stop bands. The width of high-frequency stop band at miniaturization of microstrip devices is reducing.

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Доп.точки доступа:
Boev, N. M.; Боев, Никита Михайлович; International Conference on Actual Problems of Electron Devices Engineering(2016 ; Sept. ; 22 - 23 ; Saratov)
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17.

    Low noise wideband thin-film magnetometer / А. Н. Бабицкий [et al.] // IEEE Int. Conf. "Sensors-2017" : proceedings. - 2017. - P. 316-318
   Перевод заглавия: Малошумящий широкополосный тонкопленочный магнитометр

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

Доп.точки доступа:
Бабицкий, Александр Николаевич; Babitskii, A. N.; Беляев, Борис Афанасьевич; Belyaev, B. A.; Боев, Никита Михайлович; Boev, N. M.; Изотов, Андрей Викторович; Izotov, A. V.; IEEE International Conference "Sensors"(2017 ; Oct. 29 - Nov. 1 ; Glasgow, GB)
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18.

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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19.

    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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20.

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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