Formation process of skyrmion lattice domain boundaries: The role of grain boundaries

H. Nakajima, A. Kotani, Masahito Mochizuki, K. Harada, S. Mori

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    Abstract

    We report on the formation process of skyrmion lattice (SkL) domain boundaries in FeGe using Lorentz transmission electron microscopy and small-angle electron diffraction. We observed that grain boundaries and edges play an important role in the formation of SkL domain boundaries; The SkL domain boundary is stabilized at the intersection of two grains. A micromagnetic simulation using the Landau-Lifshitz-Gilbert equation revealed that the SkL domains separated by a boundary represent the lowest energy configuration. Conversely, in a wide area, SkL domain boundaries were not formed and SkL domains with different orientations rotated to form a single SkL domain.

    Original languageEnglish
    Article number192401
    JournalApplied Physics Letters
    Volume111
    Issue number19
    DOIs
    Publication statusPublished - 2017 Nov 6

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    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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