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Thickness dependence of the interfacial Dzyaloshinskii–Moriya interaction in inversion symmetry broken systems

Author

Listed:
  • Jaehun Cho

    (Inha University)

  • Nam-Hui Kim

    (Inha University)

  • Sukmock Lee

    (Inha University)

  • June-Seo Kim

    (Center for NanoMaterials, Eindhoven University of Technology)

  • Reinoud Lavrijsen

    (Center for NanoMaterials, Eindhoven University of Technology)

  • Aurelie Solignac

    (Center for NanoMaterials, Eindhoven University of Technology)

  • Yuxiang Yin

    (Center for NanoMaterials, Eindhoven University of Technology)

  • Dong-Soo Han

    (Center for NanoMaterials, Eindhoven University of Technology)

  • Niels J. J. van Hoof

    (Inha University
    Center for NanoMaterials, Eindhoven University of Technology)

  • Henk J. M. Swagten

    (Center for NanoMaterials, Eindhoven University of Technology)

  • Bert Koopmans

    (Center for NanoMaterials, Eindhoven University of Technology)

  • Chun-Yeol You

    (Inha University)

Abstract

In magnetic multilayer systems, a large spin-orbit coupling at the interface between heavy metals and ferromagnets can lead to intriguing phenomena such as the perpendicular magnetic anisotropy, the spin Hall effect, the Rashba effect, and especially the interfacial Dzyaloshinskii–Moriya (IDM) interaction. This interfacial nature of the IDM interaction has been recently revisited because of its scientific and technological potential. Here we demonstrate an experimental technique to straightforwardly observe the IDM interaction, namely Brillouin light scattering. The non-reciprocal spin wave dispersions, systematically measured by Brillouin light scattering, allow not only the determination of the IDM energy densities beyond the regime of perpendicular magnetization but also the revelation of the inverse proportionality with the thickness of the magnetic layer, which is a clear signature of the interfacial nature. Altogether, our experimental and theoretical approaches involving double time Green’s function methods open up possibilities for exploring magnetic hybrid structures for engineering the IDM interaction.

Suggested Citation

  • Jaehun Cho & Nam-Hui Kim & Sukmock Lee & June-Seo Kim & Reinoud Lavrijsen & Aurelie Solignac & Yuxiang Yin & Dong-Soo Han & Niels J. J. van Hoof & Henk J. M. Swagten & Bert Koopmans & Chun-Yeol You, 2015. "Thickness dependence of the interfacial Dzyaloshinskii–Moriya interaction in inversion symmetry broken systems," Nature Communications, Nature, vol. 6(1), pages 1-7, November.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms8635
    DOI: 10.1038/ncomms8635
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    Cited by:

    1. Jon Ander Arregi & Patricia Riego & Andreas Berger & Elena Y. Vedmedenko, 2023. "Large interlayer Dzyaloshinskii-Moriya interactions across Ag-layers," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    2. Charles-Elie Fillion & Johanna Fischer & Raj Kumar & Aymen Fassatoui & Stefania Pizzini & Laurent Ranno & Djoudi Ourdani & Mohamed Belmeguenai & Yves Roussigné & Salim-Mourad Chérif & Stéphane Auffret, 2022. "Gate-controlled skyrmion and domain wall chirality," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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