Fe
O
/Pt bilayer diskFeO/Pt二層ディスクにおける並列パラメトリック増幅と減衰の電気的検出Emdi, G.*; 日置 友智*; 星 幸治郎*; 齊藤 英治
Emdi, G.*; Hioki, Tomosato*; Hoshi, Kojiro*; Saito, Eiji
We report a systematic quantitative evaluation of parametric amplification gain of magnetization dynamics in an yttrium iron garnet (YFeO) thin disk via ac spin pumping and the inverse spin Hall effect. We demonstrate its signature phase dependence where amplification and attenuation occur every i phase shift of the input signal. The results also show the pump-power dependence of the gain that is explained well by our theoretical model. Finally, the optimal conditions for amplification are investigated by measuring the magnetic field dependence, where we find the highest gain of 11.4 dB.
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: | English |
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: | 108 |
号 |
: | 14 |
ページ数 |
: | p.L140410_1 - L140410_6 |
発行年月 |
: | 2023/10 |
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パーセンタイル：16.04 分野：Materials Science, Multidisciplinary |
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