Journal
PHYSICAL REVIEW B
Volume 95, Issue 22, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.95.220402
Keywords
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Funding
- JSPS KAKENHI [15H05702, 26870300, 26870304, 26103002]
- Japan Society for the Promotion of Science (JSPS)
- Cooperative Research Project Program of the Research Institute of Electrical Communication, Tohoku University
- Japan Society for the Promotion of Science [2604316, P16314]
- National Research Foundation of Korea (NRF) - Korea government (MSIP) [NRF-2015M3D1A1070465, NRF-2017R1A2B2006119, 2017R1C1B2009686]
- National Research Foundation of Korea [2017R1C1B2009686] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Grants-in-Aid for Scientific Research [15H05702, 26870304, 26103002] Funding Source: KAKEN
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We investigate the effect of the Dzyaloshinskii-Moriya interaction (DMI) on magnetic domain nucleation in a ferromagnetic thin film with perpendicular magnetic anisotropy. We propose an extended droplet model to determine the nucleation field as a function of the in-plane field. The model can explain the experimentally observed nucleation in a Co/Ni microstrip with an interfacial DMI. The results are also reproduced by micromagnetic simulation based on the string model. The electrical measurement method proposed here can be widely used to quantitatively determine the DMI energy density.
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