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Showing 1–5 of 5 results
Advanced filters: Author: Soong-Geun Je Clear advanced filters

  • Topological transition of a bubble to a skyrmion by the controlled magnetic monopoles injection in Fe/Gd magnetic multilayers. The magnetic monopoles injected from the top and bottom surfaces are topologically characterized by Q = −1 and Q = +1, respectively.

    • Hee-Sung Han
    • Sergio A. Montoya
    • Mi-Young Im
    ResearchOpen Access
    NPG Asia Materials
    Volume: 16, P: 1-10

  • Chiral magnetic domain-wall (DW) speed variation is investigated. We demonstrate that the symmetric contribution in the DW speed attributes to the chiral DW energy density. Next, by deducing this symmetric contribution, the additional asymmetry was extracted. The extracted additional asymmetry exhibits truly antisymmetric nature and is governed by DW chirality. Moreover, this antisymmetry (additional asymmetry) changes overall DW speed more than a factor of 100 to the extent of dominating the symmetric contribution. These findings not only provide the artifact-free Dyzaloshinskii–Moriya interaction measurement scheme, but also contribute to the investigation of the origin of the additional asymmetry.

    • Dae-Yun Kim
    • Min-Ho Park
    • Sug-Bong Choe
    ResearchOpen Access
    NPG Asia Materials
    Volume: 10, P: e464