Magnetoelastic coupling mediated by magnetic dipolar interactions is theoretically investigated in ferromagnetic thin films under an in-plane magnetic field. We develop a theoretical description that incorporates dipolar fields derived from Maxwell's equations in the presence of elastic deformations. The resulting coupled equations of motion predict hybridization between magnetostatic and Lamb waves. Numerical calculations for a yttrium iron garnet (YIG) film reveal anti-crossings in the dispersion relations, with hybridization gaps ranging from 0.1 to several MHz.
@article{arxiv.2604.22523,
title = {Magnetoelastic Waves in Ferromagnetic Thin Films Mediated by Dipolar Interactions},
author = {Hiroki Yoshida and Ryohei Kono and Manato Fujimoto and Motoki Asano and Daiki Hatanaka and Kei Yamamoto and Shuichi Murakami},
journal= {arXiv preprint arXiv:2604.22523},
year = {2026}
}