Magnetization dynamics in the YIG/Au/YIG magnon valve

Zhiyi Li; Xiuye Zhang; Dainan Zhang; Bo Liu; Hao Meng; Jiapeng Xu; Zhiyong Zhong; Xiaoli Tang; Huaiwu Zhang; Lichuan Jin

doi:10.1063/5.0081104

APL Materials (Feb 2022)

Magnetization dynamics in the YIG/Au/YIG magnon valve

Zhiyi Li,
Xiuye Zhang,
Dainan Zhang,
Bo Liu,
Hao Meng,
Jiapeng Xu,
Zhiyong Zhong,
Xiaoli Tang,
Huaiwu Zhang,
Lichuan Jin

Affiliations

Zhiyi Li: State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
Xiuye Zhang: State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
Dainan Zhang: State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
Bo Liu: Key Laboratory of Spintronics Materials, Devices and Systems of Zhejiang Province, Hangzhou 311305, China
Hao Meng: Key Laboratory of Spintronics Materials, Devices and Systems of Zhejiang Province, Hangzhou 311305, China
Jiapeng Xu: State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
Zhiyong Zhong: State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
Xiaoli Tang: State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
Huaiwu Zhang: State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
Lichuan Jin: State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China

DOI: https://doi.org/10.1063/5.0081104
Journal volume & issue: Vol. 10, no. 2
pp. 021101 – 021101-10

Abstract

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The magnetization dynamics of an yttrium iron garnet (YIG)/Au/YIG magnon valve was investigated using broadband ferromagnetic resonance. The material characterizations of YIG/Au/YIG were performed using cross-sectional scanning transmission electron microscopy, x-ray diffraction spectroscopy, x-ray photoemission spectroscopy, Raman spectroscopy, and UV–visible spectroscopy. Asymmetric Fano resonance in the YIG/Au (60 nm)/YIG magnon valve structure was observed experimentally, and the two coupled oscillators model was used to describe the source of the Fano resonance qualitatively. We also provide a quantitative description of the Fano resonance and extract the Fano factor, which is an important feature that can be used to define the interaction sign. This represents the first attempt to apply the Fano resonance to magnetization dynamics. The spin wave resonance modes excited by the Au nanoparticles (NPs) surface plasmons were also observed in a YIG/Au NPs/YIG structure. Our findings confirm the occurrence of magnetic Fano resonance in the YIG/Au/YIG magnon valve and pave the way toward the development of quantum information devices based on magnon valves.

Published in APL Materials

ISSN: 2166-532X (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Technology: Chemical technology: Biotechnology; Science: Physics
Website: http://aplmaterials.aip.org

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