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This article is cited in 6 scientific papers (total in 6 papers)
Magnetism
High-frequency magnetic permeability of single- and multilayered (Co$_{41}$Fe$_{39}$B$_{20}$)$_{x}$(SiO$_{2}$)$_{100-x}$ nanocomposites
O. S. Tarasovaa, A. V. Sitnikova, Yu. E. Kalinina, S. N. Starostenkob, A. B. Granovskiibc a Voronezh State Technical University
b Institute for Theoretical and Applied Electromagnetics, Russian Academy of Sciences, Moscow
c Lomonosov Moscow State University
Abstract:
Thin film single-layered (Co$_{41}$Fe$_{39}$B$_{20}$)$_{x}$(SiO$_{2}$)$_{100-x}$ nanocomposites at $x$ = 30–80 at % and multilayered nanocomposites composed of 176 pairs of [(Co$_{41}$Fe$_{39}$B$_{20}$)$_{60}$ (SiO$_{2}$)$_{40}$]/[(Co$_{41}
$Fe$_{39}$B$_{20}$)$_{60}$(SiO$_{2}$)$_{40}$+O$_{2}$] have been prepared via ion-beam sputtering of the complex target. The concentration dependences of the magnetic permeability of single-layered films at a frequency of 50 MHz are characterized by maximum losses near $x$ = 60 at %, whereas the percolation threshold with respect to the electric conductivity is $x$ = 50 at %. The high-frequency magnetic permeability of films has been measured by the resonator method in the frequency range of 0.1–10 GHz. As is shown, while the single-layer film passes to the multilayered structure, the ferromagnetic resonance frequency shifts from 1.5 to 2.5 GHz, and the imaginary part of the magnetic permeability attains 200 that is presumably due to the inhibition of the perpendicular magnetic anisotropy component.
Received: 26.05.2016 Revised: 08.06.2016
Citation:
O. S. Tarasova, A. V. Sitnikov, Yu. E. Kalinin, S. N. Starostenko, A. B. Granovskii, “High-frequency magnetic permeability of single- and multilayered (Co$_{41}$Fe$_{39}$B$_{20}$)$_{x}$(SiO$_{2}$)$_{100-x}$ nanocomposites”, Fizika Tverdogo Tela, 58:12 (2016), 2365–2368; Phys. Solid State, 58:12 (2016), 2453–2456
Linking options:
https://www.mathnet.ru/eng/ftt9742 https://www.mathnet.ru/eng/ftt/v58/i12/p2365
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