Spectrum of the Ferromagnetic Resonance of a Lattice of Orthogonal Permalloy Microwaveguides
- Authors: Vysotskii S.L.1, Dudko G.M.1, Dzhumaliev A.S.1, Kozhevnikov A.V.1, Nikulin Y.V.1, Sakharov V.K.1, Khivintsev Y.V.1, Filimonov Y.A.1, Khitun A.G.2, Nikitov S.A.3
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Affiliations:
- Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch)
- Department of Electrical and Computer Engineering
- Kotel’nikov Institute of Radio Engineering and Electronics
- Issue: Vol 63, No 9 (2018)
- Pages: 1047-1052
- Section: Radio Phenomena in Solids and Plasma
- URL: https://journals.rcsi.science/1064-2269/article/view/200159
- DOI: https://doi.org/10.1134/S1064226918090255
- ID: 200159
Cite item
Abstract
The ferromagnetic resonance spectrum at a frequency of ~9.85 GHz for an in-plane magnetized 2D square lattice with the unit cell parameter а ≈ 15 μm consisting of orthogonal microwaveguides with a width of w ≈ 5 μm on the basis of a permalloy film with thickness of d ≈ 90 nm has been experimentally and numerically investigated. It is shown that upon variation in the angle θ between the magnetic field direction and the unit cell axis, the total spectrum of spin-wave excitations of the lattice can be presented as a superposition of the spectra of separate permalloy microstrips magnetized at angles θ and π/2–θ and regions corresponding to the lattice nodes. It has been found that, in the case of magnetization along the lattice diagonal (θ ≈ 45о), excitations localized at the lattice nodes dominate in the spectrum, whereas, at θ ≈ 0 and 90°, the main contribution is made by excitations localized mainly on the microwaveguide segments between the lattice nodes; at θ ≈ 10°–13° and 18–20°, “repulsion” of absorption lines in the spectrum is observed.
About the authors
S. L. Vysotskii
Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch)
Author for correspondence.
Email: vysotsl@gmail.com
Russian Federation, Saratov, 410019
G. M. Dudko
Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch)
Email: vysotsl@gmail.com
Russian Federation, Saratov, 410019
A. S. Dzhumaliev
Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch)
Email: vysotsl@gmail.com
Russian Federation, Saratov, 410019
A. V. Kozhevnikov
Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch)
Email: vysotsl@gmail.com
Russian Federation, Saratov, 410019
Yu. V. Nikulin
Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch)
Email: vysotsl@gmail.com
Russian Federation, Saratov, 410019
V. K. Sakharov
Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch)
Email: vysotsl@gmail.com
Russian Federation, Saratov, 410019
Yu. V. Khivintsev
Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch)
Email: vysotsl@gmail.com
Russian Federation, Saratov, 410019
Yu. A. Filimonov
Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch)
Email: vysotsl@gmail.com
Russian Federation, Saratov, 410019
A. G. Khitun
Department of Electrical and Computer Engineering
Email: vysotsl@gmail.com
United States, Riverside, California, 92521
S. A. Nikitov
Kotel’nikov Institute of Radio Engineering and Electronics
Email: vysotsl@gmail.com
Russian Federation, Moscow, 125009