Laboratory "Metamaterials," Saratov State University, Saratov 410012, Russia and Kotel'nikov Institute of Radioengineering and Electronics, RAS, Moscow 125009, Russia.
Laboratory "Metamaterials," Saratov State University, Saratov 410012, Russia.
Phys Rev Lett. 2018 Jun 22;120(25):257203. doi: 10.1103/PhysRevLett.120.257203.
We observe and explain theoretically strain-induced spin-wave routing in the bilateral composite multilayer. By means of Brillouin light scattering and microwave spectroscopy, we study the spin-wave transport across three adjacent magnonic stripes, which are strain coupled to a piezoelectric layer. The strain may effectively induce voltage-controlled dipolar spin-wave interactions. We experimentally demonstrate the basic features of the voltage-controlled spin-wave switching. We show that the spin-wave characteristics can be tuned with an electrical field due to piezoelectricity and magnetostriction of the piezolayer and layered composite and mechanical coupling between them. Our experimental observations agree with numerical calculations.
我们观察并从理论上解释了双边复合多层中应变诱导的自旋波路由。通过布里渊光散射和微波光谱学，我们研究了穿过三个相邻的磁性条纹的自旋波输运，这些条纹与压电层应变耦合。应变可以有效地诱导电压控制的偶极自旋波相互作用。我们实验证明了电压控制自旋波开关的基本特征。我们表明，由于压电层和层状复合材料的压电和磁致伸缩以及它们之间的机械耦合，自旋波特性可以通过电场进行调节。我们的实验观察结果与数值计算结果一致。
