Magnonic band-pass and band-stop filters with structurally modulated waveguides  

作　　者：冯来和 马莽原 刘智华 解凯乐 马付胜 Lai-He Feng;Mang-Yuan Ma;Zhi-Hua Liu;Kai-Le Xie;Fu-Sheng Ma(Jiangsu Key Laboratory of Opto-Electronic Technology,School of Physics and Technology,Nanjing Normal University,Nanjing 210046,China)

机构地区：[1]Jiangsu Key Laboratory of Opto-Electronic Technology,School of Physics and Technology,Nanjing Normal University,Nanjing 210046,China

出　　处：《Chinese Physics B》2023年第6期583-587,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos. 12074189 and 11704191)。

摘　　要：Magnonics is a fascinating and emerging field, which mainly studies processing information with spin waves.Magnonic devices with in-plane magnetization have recently been realized. Because of the isotropic propagation, magnonic devices based on perpendicular magnetization are attracting extensive interest. Here, we numerically demonstrate two magnonic filters with out-of-plane magnetization using micromagnetic simulations. The band-pass and the band-stop functions have been realized in two structurally modulated waveguides, respectively. The intensity of spin waves is manipulated when they arrive at the uniformly/non-uniformly magnetized modulators, which results in the variation of transmission coefficients. It is found that the proposed filters can work at multiple frequencies, which can be further adjusted by the external magnetic field. Our designed magnonic devices with Néel-type skyrmion could promote the development of spin wave computing using spin textures.

关 键 词：spin waves FILTER micromagnetic simulation SKYRMION 

分 类 号：TN713.5[电子电信—电路与系统]