Magnetic bimeron traveling on the domain wall
Domain wall bimerons are nanoscale spin textures residing within the magnetic domain walls of in-plane magnets. In this study, we employ both numerical and analytical methods to explore the stabilization of Néel-type domain wall bimerons and their dynamics when excited by spin–orbit torque. Our findings reveal two unique and intriguing dynamic mechanisms, which depend on the polarization direction of the spin current: In the first scenario, the magnetic domain wall serves as a track that confines the motion of the bimeron and effectively suppresses the skyrmion Hall effect. In the second scenario, pushing the magnetic domain wall triggers a rapid sliding of the bimeron along the wall. This process significantly enhances the dynamics of the bimeron, resulting in a velocity increase by approximately 40 times compared to skyrmions and bimeron solitons. Our results highlight the potential advantages of the skyrmion Hall effect in developing energy-efficient spintronic devices based on domain wall bimerons.
Authors
- Haifeng Du (ORCID: https://orcid.org/0000-0003-4263-5023)
- Xichao Zhang (ORCID: https://orcid.org/0000-0001-9656-9696)
- Jinping Chen
- Hongyu An (ORCID: https://orcid.org/0000-0003-3415-7009)
- Laichuan Shen (ORCID: https://orcid.org/0000-0003-2604-8339)
- Yan Zhou (ORCID: https://orcid.org/0000-0001-5641-9191)
- Hua Zhang (ORCID: https://orcid.org/0000-0002-1403-2295)
- Xiaoguang Li (ORCID: https://orcid.org/0000-0001-9562-2635)
Institutions
- Waseda University (JP)
- Chinese Academy of Sciences (CN)
- Beijing Normal University (CN)
- High Magnetic Field Laboratory (CN)
- Chinese University of Hong Kong, Shenzhen (CN)
- Shenzhen Technology University (CN)
Publication Details
- Journal
- Applied Physics Letters
- Published
- 2025-04-01
- DOI
- https://doi.org/10.1063/5.0249927
- Citations
- 6
- Primary Topic
- Magnetic properties of thin films
- Type
- article
- Field-Weighted Citation Impact
- 7.48
Funders
- National Natural Science Foundation of China
- National Key Research and Development Program of China
- Shenzhen Peacock Plan
- Shenzhen Fundamental Research and Discipline Layout project
- Shenzhen Science and Technology Innovation Program
- Basic and Applied Basic Research Foundation of Guangdong Province
- Core Research for Evolutional Science and Technology