Physical Review B 112, 014428 (2025)
Spin wave reconstruction with ray magnonics
Hongbin Wu1,2,3, Hongbin Wu1,3,* and Jin Lan1,2,3,†
1 Department of Physics, School of Science, Tianjin University, 92 Weijin Road, Tianjin 300072, China.
2 Center for Joint Quantum Studies, School of Science, Tianjin University, 92 Weijin Road, Tianjin 300072, China.
3 Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, Tianjin University, Tianjin 300354, China.
* wangziwu@tju.edu.cn
† lanjin@tju.edu.cn
Abstract
Spin waves, or quantized as magnons, are one of the basic excitations and fundamental spin carriers in magnetic systems. Understanding the propagation and scattering behaviors of spin waves upon inhomogeneous magnetic mediums is indispensable toward its full manipulation and exploitation. Here, we report a spin wave reconstruction scheme that retrieves phase information from magnon rays as an inverse procedure that decomposes the propagating spin wave into separate magnon rays. With the aid of magnon rays, the topological features of the spin wave profile upon a magnetic skyrmion is anatomized in a ray-by-ray fashion. The interplay between particle and wave aspects of spin waves offers another paradigm in designing functional magnetic devices.
