标题： 电流控制的动态磁振子晶体 显示英文标题

标题： Current-controlled dynamic magnonic crystal

摘要： 我们展示了一个电流控制的动态磁子晶体。 它由一个内部磁场呈现周期性余弦变化的铁氧体薄膜组成。 场调制是通过在自旋波波导上方放置的一组平行导线中流动的直流电流产生的。 由于自旋波从不均匀磁场散射，形成了自旋波传输特性中的一个明显排斥带。 随着电流的增加，排斥带的深度和宽度显著增加。 该磁子晶体可通过施加的直流电流快速控制其工作特性。 模拟结果证实了实验结果。 显示英文摘要

摘要： We demonstrate a current-controlled, dynamic magnonic crystal. It consists of a ferrite film whose internal magnetic field exhibits a periodic, cosine-like variation. The field modulation is created by a direct current flowing through an array of parallel wires placed on top of a spin-wave waveguide. A single, pronounced rejection band in the spin-wave transmission characteristics is formed due to spin-wave scattering from the inhomogeneous magnetic field. With increasing current the rejection band depth and its width increase strongly. The magnonic crystal allows a fast control of its operational characteristics via the applied direct current. Simulations confirm the experimental results.