Magnon-phonon coupling in magnetic materials

Abstract

The control of magnetism via acoustic waves has led to significant research activity, with the aim of paving the way for novel electronic and spintronic applications that are ultrafast, compact, and energy-efficient. This growing interest has stimulated the development of both experimental approaches and theoretical models to better understand and optimize the underlying magnetoelastic coupling. Here, we develop a theoretical model to investigate the coupling between spin waves and acoustic waves, focusing on their dispersion relations and mode shapes. In addition to its efficiency, the model incorporates electrical conductivity, damping, and magnetic anisotropy.