Journal
PHYSICAL REVIEW B
Volume 90, Issue 9, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.90.094411
Keywords
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Funding
- Japan Society for the Promotion of Science [25400344, 26390014]
- UK-Japanese Collaboration on Current-Driven Domain Wall Dynamics from JST
- EPSRC [EP/J000337/1]
- Grants-in-Aid for Scientific Research [26390014, 26103006] Funding Source: KAKEN
- EPSRC [EP/I011668/1, EP/J000337/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/J000337/1, EP/I011668/1] Funding Source: researchfish
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We develop the theory of magnetic domain-wall motion in coupled double-layer systems where electrons can hop between the layers, giving rise to an antiferromagnetic coupling. We demonstrate that the force from the interlayer coupling drives the walls and the effect of the extrinsic pinning is greatly reduced if the domain walls are initially separated. The threshold current density for metastable spin-aligned configurations is also much lower. We conclude that the interlayer coupling has a significant effect on domain-wall mobility in double-layer systems.
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