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Theoretical analysis reveals how edge magnetization influences interior characteristics, suggesting important implications.
The interfacial Dzyaloshinskii-Moriya interaction (I-DMI) occurs in a ferromagnetic wire on a heavy metal. Magnetic moments (MMs) at the edge of the wire are forcibly canted by the I-DMI. The influence of the canting MM at the wire edge on the wire interior is unclear. Here, we theoretically investigate the MMs under the I-DMI. The effect of the canting of MMs at the edge of the interior is shown to increase with a smaller exchange energy and a larger perpendicular anisotropy. A cosine of the cant angle of the MMs decreases exponentially with distance from the edge.
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Kaiya et al. (2022) studied this question.
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