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Magnetically tunable resonant phase shifters for UHF band / B. A. Belyaev [et al.] // IEEE Trans. Magn. - 2015. - Vol. 51, Is. 6. - Ст. 4003205, DOI 10.1109/TMAG.2014.2368513. - Cited References:22. - This work was supported by the Ministry of Education and Science of the Russian Federation, task no. 3.528.2014K. . - ISSN 0018. - ISSN 1941-0069. -

РУБ Engineering, Electrical & Electronic + Physics, Applied
Рубрики:
FERROMAGNETIC-RESONANCE
   COMPACT
   SPECTROMETER
   FERRITE
   FILMS
   LINE
Кл.слова (ненормированные):
Ferrite -- microstrip structure -- microwave -- tunable phase shifter
Аннотация: This paper presents a new type of magnetically tunable phase shifter. The shifter has the structure of microstrip bandpass filter on a substrate containing magnetic material whose magnetic permeability is controlled by magnetic field due to ferromagnetic resonance. The phase shifter's operation is based on the fact that phase shift in a bandpass filter changes with tuning of its central frequency. Two types of devices were designed and fabricated for the UHF band. One of them has a five-layer NiFe film as an active medium and demonstrates a figure of merit of 40°/dB achieved already at 20 Oe of the controlling magnetic field in 10% of the relative operational bandwidth. The second device with YIG ferrite as an active medium gave 360° tunable phase shift in 5% operational bandwidth that corresponds to the figure of merit of 150°/dB (3.1°/dB·Oe).

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Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660074, Russia.

Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Lemberg, K. V.; Serzhantov, Alexey M.; Leksikov, Al. A.; Лексиков, Александр Александрович; Bal'va, Y. F.; Бальва, Ярослав Федорович; Leksikov, An. A.; Лексиков, Андрей Александрович; Ministry of Education and Science of the Russian Federation [3.528.2014K]
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Belyaev, B. A.
FMR study of the anisotropic properties of an epitaxial Fe3Si film on a Si(111) vicinal surface / B. A. Belyaev, A. V. Izotov // JETP Letters. - 2016. - Vol. 103, Is. 1. - P. 41-45, DOI 10.1134/S0021364016010033. - Cited References: 28 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
Thin magnetic-films
   Ferromagnetic-resonance
   Cobalt films
   Metal-films
   Spectrometer
   Spintronics
   Roughness
Аннотация: The anisotropic characteristics of an iron silicide (Fe3Si) epitaxial thin magnetic film grown on a Si(111) silicon vicinal surface with a misorientation angle of 0.14° have been measured by the ferromagnetic resonance method. It has been shown that the polar and azimuth misorientation angles of the crystallographic plane of the substrate can be determined simultaneously from the angular dependences of the ferromagnetic resonance field of the epitaxial film. The effective saturation magnetization of the film M eff = 1105 G and the constant of the cubic magnetocrystalline anisotropy K 4 = 1.15 × 105 erg/cm3 have been determined. The misorientation of the substrate plane leads to the formation of steps on the film surface and, as a result, to the appearance of uniaxial magnetic anisotropy of the magnetic dipole nature with the constant K 2 = 796 erg/cm3. Small unidirectional magnetic anisotropy (K 1 = 163 erg/cm3), which may be associated with symmetry breaking on the steps of the film and is due to the Dzyaloshinskii–Moriya interaction, has been detected.

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Публикация на русском языке Беляев, Борис Афанасьевич. Исследование методом ФМР анизотропных свойств эпитаксиальной пленки Fe3Si на вицинальной поверхности Si(111) [Текст] / Б. А. Беляев, А. В. Изотов // Письма в "Журнал экспериментальной и теоретической физики". - Москва : Наука, 2016. - Т. 103 Вып. 1-2. - С. 44-49

Держатели документа:
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Reshetnev Siberian State Aerospace University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Izotov, A. V.; Изотов, Андрей Викторович; Беляев, Борис Афанасьевич
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Synthesis and study of the magnetic characteristics of nanocrystalline cobalt films / B. A. Belyaev [et al.] // Phys. Solid State. - 2008. - Vol. 50, Is. 4. - P. 676-683, DOI 10.1134/S1063783408040136. - Cited References: 13 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
FERROMAGNETIC-RESONANCE
SPECTROMETER
Аннотация: The effect of various technological factors on the main magnetic characteristics of nanocrystalline cobalt films obtained by chemical deposition is studied. The effective saturation magnetization, uniaxial anisotropy, coercive force, and other characteristics of local spots of films were measured using a scanning FMR spectrometer over the decimeter wavelength range. A technique for preparing substrates is developed, and the optimum technological conditions of thin-film synthesis are found making it possible to significantly decrease magnetic inhomogeneities across the area and thickness of samples. It is shown that one can significantly decrease the FMR linewidth and increase the magnetic permeability of films in a given microwave frequency range.

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Держатели документа:
[Belyaev, B. A.
Kiparisov, S. Ya.
Skomorokhov, G. V.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Izotov, A. V.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Krasnoyarsk 660041, Russian Federation

Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Izotov, A. V.; Изотов, Андрей Викторович; Kiparisov, S. Y.; Skomorokhov, G. V.; Скоморохов, Георгий Витальевич
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Determination of magnetic anisotropies and miscut angles in epitaxial thin films on vicinal (111) substrate by the ferromagnetic resonance / B. A. Belyaev [et al.] // J. Magn. Magn. Mater. - 2017. - Vol. 440: EURO-Asian Symposium on Trends in Magnetism (EASTMAG) (AUG 15-19, 2016, Siberian Fed Univ, Krasnoyarsk, RUSSIA). - P. 181-184, DOI 10.1016/j.jmmm.2016.12.081. - Cited References:16. - This work was supported by the Ministry of Education and Science of the Russian Federation, Task no. 3.528.2014K. . - ISSN 0304-8853. - ISSN 1873-4766

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
SURFACE
SPECTROMETER
SPINTRONICS
Кл.слова (ненормированные):
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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Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Izotov, A. V.; Изотов, Андрей Викторович; Solovev, P. N.; Соловьев, Платон Николаевич; Yakovlev, I. A.; Ministry of Education and Science of the Russian Federation [3.528.2014K]; Euro-Asian Symposium "Trends in MAGnetism"(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); "Trends in MAGnetism", Euro-Asian Symposium(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); Институт физики им. Л.В. Киренского Сибирского отделения РАН
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