Magnetic droplet nucleation with a homochiral Neel domain wall

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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.
Publisher
AMER PHYSICAL SOC
Issue Date
2017-06
Language
English
Article Type
Article
Keywords

CURRENT-DRIVEN DYNAMICS; SKYRMIONS; SURFACES

Citation

PHYSICAL REVIEW B, v.95, no.22

ISSN
2469-9950
DOI
10.1103/PhysRevB.95.220402
URI
http://hdl.handle.net/10203/224537
Appears in Collection
PH-Journal Papers(저널논문)
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