Consistency between domain wall oscillation modes and spin wave modes in nanostrips

作     者：董新伟 吴振江 Xinwei Dong;Zhenjiang Wu

作者机构：Department of Physics and Institute of Theoretical Physics and AstrophysicsXiamen UniversityXiamen 361005China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2024年第33卷第6期

页      面：511-516页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 0702[理学-物理学] 

基　　金：Project supported by the Fundamental Research Funds for the Central Universities (Grant No. 20720210030) the National Natural Science Foundation of China (Grant No. 11204255) 

主　　题：micromagnetic simulation domain wall spin wave 

摘      要：Investigations on domain wall(DW) and spin wave(SW) modes in a series of nanostrips with different widths and thicknesses have been carried out using micromagnetic simulation. The simulation results show that the frequencies of SW modes and the corresponding DW modes are consistent with each other if they have the same node number along the width direction. This consistency is more pronounced in wide and thin nanostrips, favoring the DW motion driven by *** analysis of the moving behavior of a DW driven by SWs is also carried out. The average DW speed can reach a larger value of ~ 140 m/s under two different SW sources. We argue that this study is very meaningful for the potential application of DW motion driven by SWs.