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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Babitskii A. N., Belyaev B. A., Boev N. M., Skomorokhov G. V., Izotov A. V., Galeev R. G.
Заглавие : A magnetometer of weak quasi-stationary and high-frequency fields on resonator microstrip transducers with thin magnetic fields
Место публикации : Instrum. Exp. Tech.: MAIK Nauka-Interperiodica / Springer, 2016. - Vol. 59, Is. 3. - P.425-432. - ISSN 00204412 (ISSN), DOI 10.1134/S0020441216030131
Примечания : 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).
Предметные 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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Izotov A.V., Belyaev B. A.
Заглавие : A METHOD FOR COMPUTING THE MICROWAVE ABSORPTION SPECTRUM IN A DISCRETE MODEL OF A FERROMAGNETIC
Место публикации : Russ. Phys. J. - NEW YORK: SPRINGER, 2011. - Vol. 53, Is. 9. - С. 900-905. - FEB. - ISSN 1064-8887, DOI 10.1007/s11182-011-9508-4
Примечания : Cited Reference Count: 8. - Гранты: The work was supported in part by the Federal Purpose-Oriented Program "Scientific and Scientific-Pedagogical Staff of the Innovative Russia" for the years 2009-2013, RAS Presidium Project No. 27, and by the State Contract No. 02.740.11.0568.Финансирующая организация: Federal Purpose-Oriented Program; RAS Presidium [27]; State Contract [02.740.11.0568]
Предметные рубрики:
Ключевые слова (''Своб.индексиров.''): magnetization oscillation--landau-lifshitz equation--absorption spectrum--absorption spectrum--landau-lifshitz equation--magnetization oscillation
Аннотация: An effective method based on linearization of the Landau-Lifshitz equation has been developed to determine normal magnetization oscillation modes in a discrete model of a condensed medium. The possibility to calculate microwave absorption spectra for ferromagnetic specimens of any shape is shown.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Izotov A. V., Belyaev B. A.
Заглавие : A METHOD FOR COMPUTING THE MICROWAVE ABSORPTION SPECTRUM IN A DISCRETE MODEL OF A FERROMAGNETIC
Место публикации : Russ. Phys. J.: SPRINGER, 2011. - Vol. 53, Is. 9. - P900-905. - ISSN 1064-8887, DOI 10.1007/s11182-011-9508-4
Примечания : Cited References: 8. - The work was supported in part by the Federal Purpose-Oriented Program "Scientific and Scientific-Pedagogical Staff of the Innovative Russia" for the years 2009-2013, RAS Presidium Project No. 27, and by the State Contract No. 02.740.11.0568.
Предметные рубрики: MAGNETIZATION
Ключевые слова (''Своб.индексиров.''): magnetization oscillation--landau-lifshitz equation--absorption spectrum--absorption spectrum--landau-lifshitz equation--magnetization oscillation
Аннотация: An effective method based on linearization of the Landau-Lifshitz equation has been developed to determine normal magnetization oscillation modes in a discrete model of a condensed medium. The possibility to calculate microwave absorption spectra for ferromagnetic specimens of any shape is shown.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Babitskii A. N., Belyaev B. A., Skomorokhov G. V., Izotov A. V., Galeev R. G.
Заглавие : A weak-field magnetometer based on a resonator microstrip transducer with thin magnetic films
Коллективы : Ministry of Education and Science of the Russian Federation, state order for Siberian Federal University [3.528.2014K]
Место публикации : Tech. Phys. Lett.: MAIK Nauka-Interperiodica / Springer, 2015. - Vol. 41, Is. 4. - P.324-327. - ISSN 1063, DOI 10.1134/S1063785015040021. - ISSN 10906533(eISSN)
Примечания : Cited References:12. - This study was supported by the Ministry of Education and Science of the Russian Federation, state order for Siberian Federal University in 2014, task no. 3.528.2014K.
Аннотация: A high-sensitivity magnetometer of weak quasi-stationary magnetic fields is developed and investigated. The magnetometer transducer is a microstrip resonator with an active medium from thin magnetic films prepared by magnetron sputtering of a Ni75Fe25 permalloy target. It is demonstrated that the transducer exhibits the maximum sensitivity not only in the optimal dc magnetic field, but also at the optimal deviation of this field from the rf pump field polarization direction. The magnetometer operates in a wide dynamic range of measured magnetic fields from 10−4 to 10−2 μT at frequencies of 10−1–105 Hz.
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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Burmitskikh A. V., Boev N. M., Izotov A. V., Andyuseva V. G.
Заглавие : Automated measuring unit for analysis of thin magnetic film ferroresonance spectrum
Коллективы : International Siberian Conference on Control and Communications
Место публикации : International Siberian Conference on Control and Communications, SIBCON 2019: Proceedings: IEEE, 2019. - Ст.8729594. - , DOI 10.1109/SIBCON.2019.8729594
Примечания : Cited References: 6
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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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Belyaev B. A., Babitskii A. N., Boev N. M., Izotov A. V., Sushkov A. A., Korolev E. V., Burmitskikh A. V.
Заглавие : Compact non-linear power amplifier for wideband underwater and underground near-field magnetic communication systems
Коллективы : International Siberian Conference on Control and Communications
Место публикации : International Siberian Conference on Control and Communications, SIBCON 2019: Proceedings: IEEE, 2019. - Ст.8729580. - , DOI 10.1109/SIBCON.2019.8729580
Примечания : Cited References: 6. - This work was supported by the Ministry of Education and Science of the Russian Federation, Task no. 3.1031.2017/PCh.
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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Belyaev B. A., Izotov A. V., Solovev P. N.
Заглавие : Competing magnetic anisotropies in obliquely deposited thin permalloy film
Место публикации : Physica B. - 2016. - Vol. 481. - P.86-90. - ISSN 0921-4526, DOI 10.1016/j.physb.2015.10.036
Примечания : Cited References: 31. - This study was supported by the Ministry of Education and Science of the Russian Federation, task no. 3.528.2014K
Предметные рубрики: FERROMAGNETIC-RESONANCE
MICROMAGNETIC CALCULATION
Ключевые слова (''Своб.индексиров.''): thin film--magnetic anisotropy--oblique deposition--ferromagnetic resonance--micromagnetic simulation
Аннотация: Distribution of the magnetic anisotropy in thin film prepared by thermal vacuum oblique deposition of permalloy with small off-normal angle of incident in the presence of an external magnetic field has been studied by ferromagnetic resonance technique. On local area of the sample, a mutual compensation of near orthogonal in-plane uniaxial magnetic anisotropies induced by oblique deposition and by applied magnetic field has been found. Moreover, in addition to the uniaxial (twofold) magnetic anisotropy, fourfold and sixfold magnetic anisotropies have been observed in the sample. To explain the obtained high-order anisotropies, we assumed that the sample has exchange coupled adjacent regions or phases with different parameters of magnetic anisotropy. The results of the micromagnetic analysis of a two-layer model of the sample confirm the hypothesis. © 2015 Elsevier B.V. All rights reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Belyaev B. A., Izotov A. V., Solovev P. N., Yakovlev I. A.
Заглавие : Determination of magnetic anisotropies and miscut angles in epitaxial thin films on vicinal (111) substrate by the ferromagnetic resonance
Коллективы : Euro-Asian Symposium "Trends in MAGnetism", "Trends in MAGnetism", Euro-Asian Symposium, Институт физики им. Л.В. Киренского Сибирского отделения РАН , Ministry of Education and Science of the Russian Federation [3.528.2014K]
Место публикации : J. Magn. Magn. Mater.: Elsevier Science, 2017. - Vol. 440: EURO-Asian Symposium on Trends in Magnetism (EASTMAG) (AUG 15-19, 2016, Siberian Fed Univ, Krasnoyarsk, RUSSIA). - P.181-184. - ISSN 0304-8853, DOI 10.1016/j.jmmm.2016.12.081. - ISSN 1873-4766(eISSN)
Примечания : Cited References:16. - This work was supported by the Ministry of Education and Science of the Russian Federation, Task no. 3.528.2014K.
Предметные рубрики: SURFACE
SPECTROMETER
SPINTRONICS
Ключевые слова (''Своб.индексиров.''): thin film--ferromagnetic resonance--magnetic anisotropy--vicinal (111)--surface--iron silicide
Аннотация: A method for determining magnetic anisotropy parameters of a thin single-crystal film on vicinal (111) substrate as well as substrate miscut angles from angular dependence of ferromagnetic resonance field has been proposed. The method is based on the following: (i) a new approach for the solution of the system of nonlinear equations for equilibrium and resonance conditions; (ii) a new expression of the objective function for the fitting problem. The study of the iron silicide films grown on vicinal Si(111) substrates with different miscut angles confirmed the efficiency of the method. The proposed method can be easily generalized to determine parameters of single-crystal films grown on substrates with an arbitrary cut.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Izotov A. V., Belyaev B. A.
Заглавие : Determination of magnetic anisotropies and miscut angles in epitaxial thin films on vicinal (111) substrate by the ferromagnetic resonance
Коллективы : Euro-Asian Symposium "Trends in MAGnetism", "Trends in MAGnetism", Euro-Asian Symposium, Институт физики им. Л.В. Киренского Сибирского отделения РАН
Место публикации : VI Euro-Asian Symposium "Trends in MAGnetism" (EASTMAG-2016): abstracts/ ed.: O. A. Maksimova, R. D. Ivantsov. - Krasnoyarsk: KIP RAS SB, 2016. - Ст.O5.2. - P.250. - ISBN 978-5-904603-06-9 (Шифр -478014040)
Примечания : References: 1
Ключевые слова (''Своб.индексиров.''): ferromagnetic resonance, , --magnetic anisotropy--vicinal (111) surface
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10.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Izotov A. V., Belyaev B. A.
Заглавие : Determining in-plane magnetic anisotropy constants of thin films from angular fmr dependence
Коллективы : International scientific conference magnetic measurements
Место публикации : International Scientific Conference "Magnetic Measurements": program. - 2015. - Ст.P4-01
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