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We numerically compute current-induced spin-transfer torques forantiferromagnetic domain walls, based on a linear response theory in atight-binding model. We find that, unlike for ferromagnetic domain wall motion,the contribution of adiabatic spin torque to antiferromagnetic domain wallmotion is negligible, consistent with previous theories. As a result, thenon-adiabatic spin-transfer torque is a main driving torque forantiferromagnetic domain wall motion. Moreover, the non-adiabatic spin-transfertorque for narrower antiferromagnetic domain walls increases more rapidly thanthat for ferromagnetic domain walls, which is attributed to the enhanced spinmistracking process for antiferromagnetic domain walls.

Numerical Computation of Spin-Transfer Torques for Antiferromagnetic Domain walls