Interplay of magnetization dynamics with a microwave waveguide at cryogenic temperatures

Golovchanskiy, I.A. et al. (2019) Interplay of magnetization dynamics with a microwave waveguide at cryogenic temperatures. Physical Review Applied, 11(4), 044076. (doi:10.1103/PhysRevApplied.11.044076)

Golovchanskiy, I.A. et al. (2019) Interplay of magnetization dynamics with a microwave waveguide at cryogenic temperatures. Physical Review Applied, 11(4), 044076. (doi:10.1103/PhysRevApplied.11.044076)

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Abstract

In this work, magnetization dynamics is studied at low temperatures in a hybrid system that consists of a thin epitaxial magnetic film coupled with a superconducting planar microwave waveguide. The resonance spectrum was observed over a wide magnetic field range, including low fields below the saturation magnetization and both polarities. Analysis of the spectrum via a fitting routine we develop allows the derivation of all magnetic parameters of the film at cryogenic temperatures, the detection of waveguide-induced uniaxial magnetic anisotropies of the first and the second order, and the uncovering of a minor misalignment of the magnetic field. A substantial influence of the superconducting critical state on the resonance spectrum is observed and discussed.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Weides, Professor Martin
Authors: Golovchanskiy, I.A., Abramov, N.N., Pfirrmann, M., Piskor, T., Voss, J.N., Baranov, D.S., Hovhannisyan, R.A., Stolyarov, V.S., Dubs, C., Golubov, A.A., Ryazanov, V.V., Ustinov, A.V., and Weides, M.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Physical Review Applied
Publisher:American Physical Society
ISSN:2331-7019
ISSN (Online):2331-7019
Published Online:23 April 2019
Copyright Holders:Copyright © 2019 American Physical Society
First Published:First published in Physical Review Applied 11(4): 044076
Publisher Policy:Reproduced in accordance with the publisher copyright policy
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