Magnetoelastic effects in antiferromagnetic CuMnAs are investigated by applying dynamic strain in the 0.01% range through surface acoustic waves in the GaAs substrate. The magnetic state of the CuMnAs/GaAs is characterized by a multitude of submicron-sized domains which we image by x-ray magnetic linear dichroism combined with photoemission electron microscopy. Within the explored strain range, CuMnAs shows magnetoelastic effects in the form of N\'eel vector waves with micrometer wavelength, which corresponds to an averaged overall spin-axis rotation up to 2.4 deg driven by the time-dependent strain from the surface acoustic wave. Measurements at different temperatures indicate a reduction of the wave amplitude when lowering the temperature. However, no domain wall motion has been detected on the nanosecond timescale
@article{arxiv.2309.08893,
title = {Magneto-Acoustic Waves in antiferromagnetic CuMnAs excited by Surface Acoustic Waves},
author = {M. Waqas Khaliq and Oliver Amin and Alberto Hernández-Mínguez and Marc Rovirola and Blai Casals and Khalid Omari and Sandra Ruiz-Gómez and Simone Finizio and Richard P. Campion and Kevin W. Edmonds and Vıt Novak and Anna Mandziak and Lucia Aballe and Miguel Angel Niño and Joan Manel Hernàndez and Peter Wadley and Ferran Macià and Michael Foerster},
journal= {arXiv preprint arXiv:2309.08893},
year = {2023}
}