Numerical computation of spin-transfer torques for antiferromagnetic domain walls
SCIE
SCOPUS
- Title
- Numerical computation of spin-transfer torques for antiferromagnetic domain walls
- Authors
- Park, Hyeon-Jong; Jeong, Yunboo; Oh, Se-Hyeok; Go, Gyungchoon; Oh, Jung Hyun; Kim, Kyoung-Whan; Lee, Hyun-Woo; Lee, Kyung-Jin
- Date Issued
- 2020-04
- Publisher
- AMER PHYSICAL SOC
- 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 nonadiabatic spin-transfer torque is a main driving torque for antiferromagnetic domain-wall motion. Moreover, the nonadiabatic 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.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/107906
- DOI
- 10.1103/PhysRevB.101.144431
- ISSN
- 2469-9950
- Article Type
- Article
- Citation
- PHYSICAL REVIEW B, vol. 101, no. 14, 2020-04
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- There are no files associated with this item.
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