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Skyrmion phase and competing magnetic orders on a breathing kagomé lattice

Author

Listed:
  • Max Hirschberger

    (RIKEN Center for Emergent Matter Science (CEMS))

  • Taro Nakajima

    (RIKEN Center for Emergent Matter Science (CEMS)
    The University of Tokyo)

  • Shang Gao

    (RIKEN Center for Emergent Matter Science (CEMS))

  • Licong Peng

    (RIKEN Center for Emergent Matter Science (CEMS))

  • Akiko Kikkawa

    (RIKEN Center for Emergent Matter Science (CEMS))

  • Takashi Kurumaji

    (RIKEN Center for Emergent Matter Science (CEMS)
    Massachusetts Institute of Technology)

  • Markus Kriener

    (RIKEN Center for Emergent Matter Science (CEMS))

  • Yuichi Yamasaki

    (National Institute for Materials Science (NIMS)
    PRESTO, Japan Science and Technology Agency (JST))

  • Hajime Sagayama

    (Institute of Materials Structure Science, High Energy Accelerator Research Organization)

  • Hironori Nakao

    (Institute of Materials Structure Science, High Energy Accelerator Research Organization)

  • Kazuki Ohishi

    (Comprehensive Research Organization for Science and Society (CROSS))

  • Kazuhisa Kakurai

    (RIKEN Center for Emergent Matter Science (CEMS)
    Comprehensive Research Organization for Science and Society (CROSS))

  • Yasujiro Taguchi

    (RIKEN Center for Emergent Matter Science (CEMS))

  • Xiuzhen Yu

    (RIKEN Center for Emergent Matter Science (CEMS))

  • Taka-hisa Arima

    (RIKEN Center for Emergent Matter Science (CEMS)
    University of Tokyo)

  • Yoshinori Tokura

    (RIKEN Center for Emergent Matter Science (CEMS)
    University of Tokyo)

Abstract

Magnetic skyrmion textures are realized mainly in non-centrosymmetric, e.g. chiral or polar, magnets. Extending the field to centrosymmetric bulk materials is a rewarding challenge, where the released helicity/vorticity degree of freedom and higher skyrmion density result in intriguing new properties and enhanced functionality. We report here on the experimental observation of a skyrmion lattice (SkL) phase with large topological Hall effect and an incommensurate helical pitch as small as 2.8 nm in metallic Gd3Ru4Al12, which materializes a breathing kagomé lattice of Gadolinium moments. The magnetic structure of several ordered phases, including the SkL, is determined by resonant x-ray diffraction as well as small angle neutron scattering. The SkL and helical phases are also observed directly using Lorentz-transmission electron microscopy. Among several competing phases, the SkL is promoted over a low-temperature transverse conical state by thermal fluctuations in an intermediate range of magnetic fields.

Suggested Citation

  • Max Hirschberger & Taro Nakajima & Shang Gao & Licong Peng & Akiko Kikkawa & Takashi Kurumaji & Markus Kriener & Yuichi Yamasaki & Hajime Sagayama & Hironori Nakao & Kazuki Ohishi & Kazuhisa Kakurai &, 2019. "Skyrmion phase and competing magnetic orders on a breathing kagomé lattice," Nature Communications, Nature, vol. 10(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-13675-4
    DOI: 10.1038/s41467-019-13675-4
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    Cited by:

    1. Hao Zhang & Zhentao Wang & David Dahlbom & Kipton Barros & Cristian D. Batista, 2023. "CP2 skyrmions and skyrmion crystals in realistic quantum magnets," Nature Communications, Nature, vol. 14(1), pages 1-7, December.
    2. Rina Takagi & Naofumi Matsuyama & Victor Ukleev & Le Yu & Jonathan S. White & Sonia Francoual & José R. L. Mardegan & Satoru Hayami & Hiraku Saito & Koji Kaneko & Kazuki Ohishi & Yoshichika Ōnuki & Ta, 2022. "Square and rhombic lattices of magnetic skyrmions in a centrosymmetric binary compound," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    3. Satoru Hayami & Tsuyoshi Okubo & Yukitoshi Motome, 2021. "Phase shift in skyrmion crystals," Nature Communications, Nature, vol. 12(1), pages 1-6, December.
    4. Deepak Singh & Yukako Fujishiro & Satoru Hayami & Samuel H. Moody & Takuya Nomoto & Priya R. Baral & Victor Ukleev & Robert Cubitt & Nina-Juliane Steinke & Dariusz J. Gawryluk & Ekaterina Pomjakushina, 2023. "Transition between distinct hybrid skyrmion textures through their hexagonal-to-square crystal transformation in a polar magnet," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    5. Yoshihiro D. Kato & Yoshihiro Okamura & Max Hirschberger & Yoshinori Tokura & Youtarou Takahashi, 2023. "Topological magneto-optical effect from skyrmion lattice," Nature Communications, Nature, vol. 14(1), pages 1-7, December.

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