In antiferromagnets, the Dzyaloshinskii-Moriya interaction lifts the degeneracy of left- and right-circularly polarized spin waves. This relativistic coupling increases the efficiency of spin-wave-induced domain wall motion and leads to higher drift velocities. We show that in biaxial antiferromagnets, the spin-wave helicity controls both the direction and magnitude of the magnonic force on chiral domain walls. By contrast, in uniaxial antiferromagnets, the magnonic force is propulsive with a helicity dependent strength.
@article{arxiv.1705.01572,
title = {Controlling Chiral Domain Walls in Antiferromagnets Using Spin-Wave Helicity},
author = {Alireza Qaiumzadeh and Lars A. Kristiansen and Arne Brataas},
journal= {arXiv preprint arXiv:1705.01572},
year = {2018}
}