Angle-dependent spin wave spectra of permalloy ring arrays  

作　　者：Shuxuan Wu Zengtai Zhu Yunxu Ma Jinwu Wei Senfu Zhang Jianbo Wang Qingfang Liu 吴书旋;朱增泰;马云旭;魏晋武;张森富;王建波;刘青芳(Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education,Lanzhou University,Lanzhou 730000,China;Songshan Lake Materials Laboratory,Dongguan 523808,China;Key Laboratory for Special Function Materials and Structural Design of the Ministry of the Education,Lanzhou University,Lanzhou 730000,China)

机构地区：[1]Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education,Lanzhou University,Lanzhou 730000,China [2]Songshan Lake Materials Laboratory,Dongguan 523808,China [3]Key Laboratory for Special Function Materials and Structural Design of the Ministry of the Education,Lanzhou University,Lanzhou 730000,China

出　　处：《Chinese Physics B》2022年第11期149-154,共6页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.12074158,12174166,and 12104197)。

摘　　要：We investigated the angle-dependent spin wave spectra of permalloy ring arrays with the fixed outer diameter and various inner diameters by ferromagnetic resonance spectroscopy and micromagnetic simulation.When the field is obliquely applied to the ring,local resonance mode can be observed in different parts of the rings.And the resonance mode will change to perpendicular spin standing waves if the magnetic field is applied along the perpendicular direction.The simulation results demonstrated this evolution and implied more resonance modes that maybe exist.And the mathematical fitting results based on the Kittel equation further proved the existence of local resonance mode.

关 键 词：spin waves magnetic resonance spectra spintronic devices 

分 类 号：O469[理学—凝聚态物理]