  We predict a mechanism to controllably manipulate domain walls in kagome
antiferromagnets via a single linearly polarized spin-wave source. We show by
means of atomistic spin dynamics simulations of antiferromagnets with kagome
structure that the speed and direction of the domain wall motion can be
regulated by only tuning the frequency of the applied spin wave. Starting from
microscopics, we establish an effective action and derive the corresponding
equations of motion for the spin-wave-driven domain wall. Our analytical
calculations reveal that the coupling of two spin-wave modes inside the domain
wall explains the frequency-dependent velocity of the spin texture. Such a
highly tunable spin-wave-induced domain wall motion provides a key component
toward next-generation fast, energy-efficient, and Joule-heating-free
antiferromagnetic insulator devices.
