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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. 1
1 Physikalisches Institut (PHI), Karlsruher Institut für Technologie (KIT)

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. Published by AIP Publishing.

DOI: 10.1063/1.5025028
Zitationen: 8
Web of Science
Zitationen: 8
Zitationen: 8
Zugehörige Institution(en) am KIT Physikalisches Institut (PHI)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 05.2018
Sprache Englisch
Identifikator ISSN: 0021-8979, 1089-7550
KITopen-ID: 1000083221
Erschienen in Journal of applied physics
Verlag American Institute of Physics (AIP)
Band 123
Heft 17
Seiten 173904
Nachgewiesen in Scopus
Web of Science
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