Formation process of skyrmion lattice domain boundaries

The role of grain boundaries

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

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    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

    Fingerprint

    grain boundaries
    intersections
    electron diffraction
    transmission electron microscopy
    configurations
    simulation
    energy

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

    Cite this

    Formation process of skyrmion lattice domain boundaries : The role of grain boundaries. / Nakajima, H.; Kotani, A.; Mochizuki, Masahito; Harada, K.; Mori, S.

    In: Applied Physics Letters, Vol. 111, No. 19, 192401, 06.11.2017.

    Research output: Contribution to journalArticle

    @article{5ac10db3fab14e1087194cb0126aabeb,
    title = "Formation process of skyrmion lattice domain boundaries: The role of grain boundaries",
    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.",
    author = "H. Nakajima and A. Kotani and Masahito Mochizuki and K. Harada and S. Mori",
    year = "2017",
    month = "11",
    day = "6",
    doi = "10.1063/1.4991791",
    language = "English",
    volume = "111",
    journal = "Applied Physics Letters",
    issn = "0003-6951",
    publisher = "American Institute of Physics Publising LLC",
    number = "19",

    }

    TY - JOUR

    T1 - Formation process of skyrmion lattice domain boundaries

    T2 - The role of grain boundaries

    AU - Nakajima, H.

    AU - Kotani, A.

    AU - Mochizuki, Masahito

    AU - Harada, K.

    AU - Mori, S.

    PY - 2017/11/6

    Y1 - 2017/11/6

    N2 - 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.

    AB - 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.

    UR - http://www.scopus.com/inward/record.url?scp=85033560517&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=85033560517&partnerID=8YFLogxK

    U2 - 10.1063/1.4991791

    DO - 10.1063/1.4991791

    M3 - Article

    VL - 111

    JO - Applied Physics Letters

    JF - Applied Physics Letters

    SN - 0003-6951

    IS - 19

    M1 - 192401

    ER -