Perspectives on spintronics with surface acoustic waves

Surface acoustic waves (SAWs) are elastic waves propagating on the surface of solids with the amplitude decaying into the solid. The well-established fabrication of compact SAW devices, together with well-defined resonance frequencies, places SAWs as an attractive route to manipulate the magnetization states in spintronics, all of which is made possible by the magnetostriction and magnetoelastic effects. Here, we review the basic characteristics of SAW devices and their interaction out-of-resonance and in-resonance with the magnetization in thin films. We describe our own recent results in this research field and closely related works and provide our perspectives moving forward.

表面声波（SAW）是在固体表面传播的弹性波，其振幅在固体内部衰减。紧凑的表面声波器件的成熟制造工艺，以及明确的共振频率，使得表面声波成为在自旋电子学中操控磁化状态的一种有吸引力的途径，而这一切都因磁致伸缩和磁弹性效应而成为可能。在此，我们综述了表面声波器件的基本特性，以及它们在薄膜中与磁化的非共振和共振相互作用。我们描述了我们自己在该研究领域的最新成果以及密切相关的工作，并提出了我们对未来的展望。