  In this work, we study the rotating magnetic field driven domain wall (DW)
motion in antiferromagnetic nanowires, using the micromagnetic simulations of
the classical Heisenberg spin model. We show that in low frequency region, the
rotating field alone could efficiently drive the DW motion even in the absence
of Dzyaloshinskii-Moriya interaction (DMI). In this case, the DW rotates
synchronously with the magnetic field, and a stable precession torque is
available and drives the DW motion with a steady velocity. In large frequency
region, the DW only oscillates around its equilibrium position and cannot
propagate. The dependences of the velocity and critical frequency
differentiating the two motion modes on several parameters are investigated in
details, and the direction of the DW motion can be controlled by modulating the
initial phase of the field. Interestingly, a unidirectional DW motion is
predicted attributing to the bulk DMI, and the nonzero velocity for high
frequency is well explained. Thus, this work does provide useful information
for further antiferromagnetic spintronics applications.
