Bidirectional propagation of tilting domain walls in perpendicularly magnetized T shaped structure with the interfacial Dzyaloshinskii-Moriya interaction View Full Text


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Article Info

DATE

2018-12

AUTHORS

Jaesuk Kwon, Hee-Kyeong Hwang, Jung-Il Hong, Chun-Yeol You

ABSTRACT

Understanding of domain wall (DW) propagation in a complex structure is an essential first step toward the development of any magnetic-domain based devices including spin-based logic or magnetic memristors. Interfacial Dzyaloshinskii-Moriya interaction (iDMI) in the structure with broken inversion symmetry induces an asymmetrical DW configuration with respect to the direction of in-plane field. Dynamic behaviors of field-driven DW within the film with perpendicular magnetic anisotropy is influenced by DW tilt from the iDMI effect and the corners in the T-shaped structure of the DW path. Images from Kerr microscopy reveal that the iDMI effective field contributes to a tilted structure of DW configuration and evolution along its propagation. With the combination of iDMI and T-shaped structure, we observed two distinguished bidirectional DW propagations in two output branches and distinct arriving times at the destination pads with a uniform external field. Micromagnetic simulation results is compared with the observed dynamics of a DW configuration in the structure providing an additional confirmation of the interpreted results. More... »

PAGES

18035

References to SciGraph publications

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  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1038/s41598-018-36523-9

    DOI

    http://dx.doi.org/10.1038/s41598-018-36523-9

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1110718683

    PUBMED

    https://www.ncbi.nlm.nih.gov/pubmed/30575792


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