Hybridized Propagation of Spin Waves and Surface Acoustic Waves in a Multiferroic-Ferromagnetic Heterostructure
Hybridized Propagation of Spin Waves and Surface Acoustic Waves in a Multiferroic-Ferromagnetic Heterostructure
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DOI：
10.1103/physrevapplied.19.024046
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发表时间：
2023-02-16
影响因子：
4.6
通讯作者：
Yu, Haiming
中科院分区：
文献类型：
--
作者：
Chen, Jilei;Yamamoto, Kei;Yu, Haiming
基于磁振子的混合系统中的相干耦合在量子信息处理中有许多潜在的应用。磁子可以在没有电子运动的情况下在磁性有序材料中传播，这为制造无散热的低功耗器件和信息通道提供了一种独特的方法。本文研究了多铁性BiFeO_3和铁磁性La_(0.67)Sr_(0.33)MnO_3基异质结中自旋波和乐夫声表面波杂化模间的相干传播。磁弹性耦合使杂化模的强度比纯自旋波的强度提高了26倍。这种混合模式的波长最小可达250 nm，这对于纳米尺度的声学应用是可取的。我们的实验和理论相结合的分析代表了混合磁振子的相干控制的一步，这可能会启发用于相干信息处理和操纵的磁振子-声子混合系统的研究。
Coherent coupling in magnon-based hybrid systems has many potential applications in quantum information processing. Magnons can propagate in magnetically ordered materials without any motion of electrons, offering a unique method to build low-power-consumption devices and information chan-nels free of heat dissipation. In this paper, we demonstrate the coherent propagation of hybridized modes between spin waves and Love surface acoustic waves in a multiferroic BiFeO3 and ferromag-netic La0.67Sr0.33MnO3-based heterostructure. The magnetoelastic coupling enables a giant enhancement of the strength of the hybridized mode by a factor of 26 compared to that of the pure spin waves. A short wavelength down to 250 nm is demonstrated for the hybridized mode, which is desirable for nanoscale acoustomagnonic applications. Our combined experimental and theoretical analyses represent a step towards the coherent control in hybrid magnonics, which may inspire the study of magnon-phonon hybrid systems for coherent information processing and manipulation.