Probing dynamics of micro-magnets with multi-mode superconducting resonator

I.A. Golovchanskiy, N.N. Abramov, V.S. Stolyarov, I.V. Shchetinin, P.S. Dzhumaev, A.S. Averkin, S.N. Kozlov, A.A. Golubov, V.V. Ryazanov, A.V. Ustinov

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Abstract

In this work, we propose and explore a sensitive technique for investigation of ferromagnetic resonance and corresponding magnetic properties of individual micro-scaled and/or weak ferromagnetic samples. The technique is based on coupling the investigated sample to a high-Q transmission line superconducting resonator, where the response of the sample is studied at eigen frequencies of the resonator. The high quality factor of the resonator enables sensitive detection of weak absorption losses at multiple frequencies of the ferromagnetic resonance. Studying the microwave response of individual micro-scaled permalloy rectangles, we have confirmed the superiority of fluxometric demagnetizing factor over the commonly accepted magnetometric one and have depicted the demagnetization of the sample, as well as magnetostatic standing wave resonance.

Original languageEnglish
Article number173904
Number of pages9
JournalJournal of applied physics
Volume123
Issue number17
DOIs
Publication statusPublished - 7 May 2018

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magnets
resonators
ferromagnetic resonance
Q factors
rectangles
Permalloys (trademark)
demagnetization
magnetostatics
standing waves
transmission lines
magnetic properties
microwaves

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Golovchanskiy, I. A., Abramov, N. N., Stolyarov, V. S., Shchetinin, I. V., Dzhumaev, P. S., Averkin, A. S., ... Ustinov, A. V. (2018). Probing dynamics of micro-magnets with multi-mode superconducting resonator. Journal of applied physics, 123(17), [173904]. https://doi.org/10.1063/1.5025028
Golovchanskiy, I.A. ; Abramov, N.N. ; Stolyarov, V.S. ; Shchetinin, I.V. ; Dzhumaev, P.S. ; Averkin, A.S. ; Kozlov, S.N. ; Golubov, A.A. ; Ryazanov, V.V. ; Ustinov, A.V. / Probing dynamics of micro-magnets with multi-mode superconducting resonator. In: Journal of applied physics. 2018 ; Vol. 123, No. 17.
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Golovchanskiy, IA, Abramov, NN, Stolyarov, VS, Shchetinin, IV, Dzhumaev, PS, Averkin, AS, Kozlov, SN, Golubov, AA, Ryazanov, VV & Ustinov, AV 2018, 'Probing dynamics of micro-magnets with multi-mode superconducting resonator', Journal of applied physics, vol. 123, no. 17, 173904. https://doi.org/10.1063/1.5025028

Probing dynamics of micro-magnets with multi-mode superconducting resonator. / Golovchanskiy, I.A.; Abramov, N.N.; Stolyarov, V.S.; Shchetinin, I.V.; Dzhumaev, P.S.; Averkin, A.S.; Kozlov, S.N.; Golubov, A.A.; Ryazanov, V.V.; Ustinov, A.V.

In: Journal of applied physics, Vol. 123, No. 17, 173904, 07.05.2018.

Research output: Contribution to journalArticleAcademicpeer-review

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Golovchanskiy IA, Abramov NN, Stolyarov VS, Shchetinin IV, Dzhumaev PS, Averkin AS et al. Probing dynamics of micro-magnets with multi-mode superconducting resonator. Journal of applied physics. 2018 May 7;123(17). 173904. https://doi.org/10.1063/1.5025028