摘要
We determine the region in which the magnon-mediated spin torques exist.This region can be controlled by the spin waves.In terms of stability analysis of magnetization dynamics based on the spin-wave background,we obtain the instability conditions of spin waves.With these results,we find the relationship between unstable regions and the formation of Akhmediev breather,Kuznetsov-Ma breather and rogue waves.We establish the phase diagram of some novel magnetic excitaions.
作者
Zai-Dong Li
Qi-Qi Guo
Yong Guo
Peng-Bin He
Wu-Ming Liu
李再东;郭奇奇;郭永;贺鹏斌;刘伍明(Department of Applied Physics,Hebei University of Technology,Tianjin 300401,China;State Key Laboratory of Quantum Optics and Quantum Optics Devices,Shanxi University,Taiyuan 030006,China;School of Science,Tianjin University of Technology,Tianjin 300384,China;Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics,Tsinghua University,Beijing 100084,China;School of Physics and Electronics,Hunan University,Changsha 410082,China;Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100080,China)
基金
supported by the National Natural Science Foundation of China(Grant No.61774001)
the Natural Science Foundation of Hebei Province of China(Grant No.F2019202141)
the Program of State Key Laboratory of Quantum Optics and Quantum Optics Devices,Shanxi University,China(Grant No.KF201906).
