Spin-Torque Excitation of Perpendicular Standing Spin Waves in Coupled YIG/Co Heterostructures
Klingler S, Amin V, Gepraegs S, Ganzhorn K, Maier-Flaig H, Althammer M, Huebl H, Gross R, Mcmichael RD, Stiles MD, Goennenwein STB, Weiler M (2018)
Publication Type: Journal article
Publication year: 2018
Journal
Book Volume: 120
Article Number: 127201
Journal Issue: 12
DOI: 10.1103/PhysRevLett.120.127201
Abstract
We investigate yttrium iron garnet (YIG)/cobalt (Co) heterostructures using broadband ferromagnetic resonance (FMR). We observe an efficient excitation of perpendicular standing spin waves (PSSWs) in the YIG layer when the resonance frequencies of the YIG PSSWs and the Co FMR line coincide. Avoided crossings of YIG PSSWs and the Co FMR line are found and modeled using mutual spin pumping and exchange torques. The excitation of PSSWs is suppressed by a thin aluminum oxide interlayer but persists with a copper interlayer, in agreement with the proposed model.
Involved external institutions
Bayerische Akademie der Wissenschaften
Germany (DE)
National Institute of Standards and Technology (NIST)
United States (USA) (US)
Technische Universität Dresden
Germany (DE)
Germany (DE)
National Institute of Standards and Technology (NIST)
United States (USA) (US)
Technische Universität Dresden
Germany (DE)
How to cite
APA:
Klingler, S., Amin, V., Gepraegs, S., Ganzhorn, K., Maier-Flaig, H., Althammer, M.,... Weiler, M. (2018). Spin-Torque Excitation of Perpendicular Standing Spin Waves in Coupled YIG/Co Heterostructures. Physical Review Letters, 120(12). https://doi.org/10.1103/PhysRevLett.120.127201
MLA:
Klingler, Stefan, et al. "Spin-Torque Excitation of Perpendicular Standing Spin Waves in Coupled YIG/Co Heterostructures." Physical Review Letters 120.12 (2018).
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