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

ISSN Print: 0040-2508
ISSN Online: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v76.i4.50
pages 327-333

FERROMAGNETIC RESONANCE IN HEXAGONAL ARRAYS OF Ni0.8 Fe0.2 NANOWIRES AT TEMPERATURES 300K AND 4.2K

А. S. Vakula
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
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
S. Yu. Polevoy
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkiv 61085, Ukraine
A. A. Girich
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkiv 61085, 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

ABSTRACT

The array of Ni0.8Fe0.2 (permalloy) nanowires deposited in the alumina nanopores of the aluminum substrate has been studied by the ferromagnetic resonance technique in 30-40 GHz frequency range at T=300 K and in 70-80 GHz frequency range at T= 4.2 K. The dependences of magnetic resonance response on frequency, on wire orientation and on temperature have been measured. The well-known Smith-Beljers equation has been applied for the analysis of the ferromagnetic resonance. The values of gyromagnetic ratio and anisotropy field have been estimated. The results of investigation can be used to design electronic microwave devises with temperature controlled magnetic properties.


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