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Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN Imprimir: 0040-2508
ISSN On-line: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v58.i1-2.140
6 pages

High Frequency Properties of Co/Cu Multilayer Structures in Millimeter Wavelengths Band

V. N. Derkach
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12, Academician Proskura St., Kharkov 61085
S. V. Nedukh
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkiv 61085, Ukraine; V. Karazin National University of Kharkiv, 4 Svobody Sq., Kharkiv 61077, Ukraine
A. G. Ravlik
National Technical University "Kharkov Polytechnical Institute", Ukraine
S. T. Roschenko
National Technical University ”Kharkov Polytechnical Institute”, 21 Frunze St., 61002, Kharkov, Ukraine
I. G. Shipkova
National Technical University; Kharkov Polytechnical Institute”, 21 Frunze St., 61002, Kharkov, Ukraine
S. I. Tarapov
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkiv 61085, Ukraine; Kharkiv National University of Radio Electronics 14, Nauka Av, Kharkiv 61166, Ukraine; V. Karazin National University of Kharkiv, 4 Svobody Sq., Kharkiv 61077, Ukraine

RESUMO

The results of investigations (ferromagnetic resonance response and the non-resonance one) of n magnetic Co/Cu multilayers in frequency bands 20-80 GHz and 140 GHz are presented. It is shown that the magnetization saturation of the structure under study depends on the Cu-interlayers thickness. The high-frequency magnetoimpedance behavior in the structures under study at weak external magnetic field has been analyzed. Rather small magnetic hysteresis of transmission coefficient has been revealed. It is shown that the module of high-frequency impedance demonstrates the weak dependence on the frequency at millimeter wavelength band.


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