Numerical Computation of Spin-Transfer Torques for Antiferromagnetic Domain walls

Abstract

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

arXiv comment19 pages, 4 figures

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Cited by in corpus (5)

• Non-classical spin transfer effects in an antiferromagnet
• Microscopic Calculation of Spin Torques in Textured Antiferromagnets
• Adiabatic and Nonadiabatic Spin-transfer Torques in Antiferromagnets
• Theory of Domain-Wall Magnetoresistance in Metallic Antiferromagnets
• Current-Induced Spin-Wave Doppler Shift in Antiferromagnets