The interaction between magnetic and acoustic excitations has recently inspired many interdisciplinary studies ranging from fundamental physics to circuit implementation. Specifically, the exploration of their coherent interconversion enabled via the magnetoelastic coupling opens a new playground combining straintronics and spintronics and provides a unique platform for building up on-chip coherent information processing networks with miniaturized magnonic and acoustic devices. In this Perspective, we will focus on the recent progress of magnon–phonon coupled dynamic systems, including materials, circuits, imaging, and new physics. In particular, we highlight the unique features such as nonreciprocal acoustic wave propagation and strong coupling between magnons and phonons in magnetic thin-film systems, which provide a platform for their coherent manipulation and transduction. We will also review the frontiers of surface acoustic wave resonators in coherent quantum transduction and discuss how the novel acoustic circuit design can be applied in microwave spintronics.

中文翻译：

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磁振子与声学声子相干耦合研究进展

磁激励和声激励之间的相互作用最近激发了从基础物理学到电路实现的许多跨学科研究。具体而言，通过磁弹性耦合对其相干互变的探索开辟了一个结合应变电子学和自旋电子学的新领域，并为构建具有微型磁子和声学器件的片上相干信息处理网络提供了独特的平台。在这个视角中，我们将关注磁子-声子耦合动态系统的最新进展，包括材料、电路、成像和新物理。我们特别强调了磁性薄膜系统中声波的非互易传播和磁子与声子之间的强耦合等独特特征，为它们的连贯操作和转导提供了一个平台。我们还将回顾相干量子转换中表面声波谐振器的前沿，并讨论如何将新型声学电路设计应用于微波自旋电子学。