Efficient stopping of current-driven domain wall using a local Rashba field

Abstract

We theoretically show that a locally-embedded Rashba interaction acts as a strong pinning center for current-driven domain walls and demonstrate efficient capturing and depinning of the wall using a weak Rashba interaction of the order of 0.01 eVÅ. Our discovery is expected to be useful for the highly reliable control of domain walls in racetrack memories.

References in corpus (3)

• Microscopic approach to current-driven domain wall dynamics
• Current-induced domain wall motion in Rashba spin-orbit system
• Current-driven dynamics of coupled domain walls in a synthetic antiferromagnet