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.

Topics
Crystallographic defects, Crystal lattices, Ferromagnetic materials, Magnetic ordering, Electron diffraction, Lorentz microscopy, Lorentz transmission electron microscopy, Landau-Lifshitz-Gilbert equation, Lenses, Hypothetical particles
© 2017 Author(s).
2017
Author(s)

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