Tunable magnon-magnon coupling mediated by in-plane magnetic anisotropy in synthetic antiferromagnets
Tunable magnon-magnon coupling mediated by in-plane magnetic anisotropy in synthetic antiferromagnets
复制标题
合成反铁磁体中面内磁各向异性介导的可调谐磁振子-磁振子耦合
DOI：
10.1016/j.jmmm.2022.170283
复制
发表时间：
2022-12-12
影响因子：
2.7
通讯作者：
He, Wei
中科院分区：
文献类型：
--
作者：
Hu, Bo;He, Wei
The magnon-magnon coupling is the key issue to exchange information in hybrid magnonic systems. We investigate the magnon-magnon coupling in a synthetic antiferromagnet (SAF) system with the presence of an in -plane uniaxial magnetic anisotropy via micromagnetic simulations. The magnon-magnon coupling arises, and its strength is field-direction dependent. The maximum magnon-magnon coupling occurs when the in-plane mag-netic field along 45 degrees deviates from the easy axis. The magnon-magnon coupling can be regulated by the in-plane magnetic anisotropy field. The dynamical phase between two magnetic layers is neither 0 degrees nor 180 degrees, which indicates the magnon in a hybrid mode. This study provides a simple method for a tunable magnon-magnon coupling in SAFs to realize a practical hybrid quantum system based on magnonics.
