首页 | 中心概况 | 人员构成 | 科学研究 | 学术活动 | 招贤纳士 | 资源下载 | 联系我们 | English Version 
 

Phys. Rev. B 106, L020404 (2022)

Spin wave driven domain wall motion in easy-plane ferromagnets: A particle perspective

Jin Lan1,* and Jiang Xiao2,3,4,5,6,†

1 Center for Joint Quantum Studies and Department of Physics, School of Science, Tianjin University, 92 Weijin Road, Tianjin 300072, China

2 Department of Physics and State Key Laboratory of Surface Physics, Fudan University, Shanghai 200433, China

3 Institute for Nanoelectronics Devices and Quantum Computing, Fudan University, Shanghai 200433, China

4 Shanghai Research Center for Quantum Sciences, Shanghai 201315, China

5 Shanghai Qi Zhi Institute, 200232 Shanghai, China

6 Zhangjiang Fudan International Innovation Center, Fudan University, Shanghai 201210, China

* Corresponding author: lanjin@tju.edu.cn

† Corresponding author: xiaojiang@fudan.edu.cn

Abstract

In easy-plane ferromagnets, we show that the interplay between a domain wall and a spin wave packet can be formulated as the collision of two massive particles with a gravitylike attraction. In the presence of magnetic dissipation, the domain wall mimics a particle subject to viscous friction, while the spin wave packet resembles a particle of variable mass. Due to the attractive nature of the interaction, the domain wall acquires a backward displacement as a spin wave packet penetrating the domain wall, even though there is no change in momentum of the wave packet before and after penetration.

关闭窗口

天津大学理学院 量子交叉研究中心   地址:天津津南区 雅观路135号 天津大学北洋园校区32楼146 
Center for Joint Quantum Studies, School of Science, Tianjin University     Address : Yaguan Road 135, Jinnan District, 300350 Tianjin, P. R. China