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Topological transitions among skyrmion- and hedgehog-lattice states in cubic chiral magnets

Author

Listed:
  • Y. Fujishiro

    (The University of Tokyo, Bunkyo-ku)

  • N. Kanazawa

    (The University of Tokyo, Bunkyo-ku)

  • T. Nakajima

    (RIKEN Center for Emergent Matter Science (CEMS), Wako)

  • X. Z. Yu

    (RIKEN Center for Emergent Matter Science (CEMS), Wako)

  • K. Ohishi

    (Neutron Science and Technology Center, Comprehensive Research Organization for Science and Society (CROSS), Tokai, Naka)

  • Y. Kawamura

    (Neutron Science and Technology Center, Comprehensive Research Organization for Science and Society (CROSS), Tokai, Naka)

  • K. Kakurai

    (RIKEN Center for Emergent Matter Science (CEMS), Wako
    Neutron Science and Technology Center, Comprehensive Research Organization for Science and Society (CROSS), Tokai, Naka)

  • T. Arima

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

  • H. Mitamura

    (The Institute for Solid State Physics (ISSP), The University of Tokyo)

  • A. Miyake

    (The Institute for Solid State Physics (ISSP), The University of Tokyo)

  • K. Akiba

    (The Institute for Solid State Physics (ISSP), The University of Tokyo)

  • M. Tokunaga

    (The Institute for Solid State Physics (ISSP), The University of Tokyo)

  • A. Matsuo

    (The Institute for Solid State Physics (ISSP), The University of Tokyo)

  • K. Kindo

    (The Institute for Solid State Physics (ISSP), The University of Tokyo)

  • T. Koretsune

    (Tohoku University, Aoba-ku)

  • R. Arita

    (The University of Tokyo, Bunkyo-ku
    RIKEN Center for Emergent Matter Science (CEMS), Wako)

  • Y. Tokura

    (The University of Tokyo, Bunkyo-ku
    RIKEN Center for Emergent Matter Science (CEMS), Wako)

Abstract

Manipulating topological spin textures is a key for exploring unprecedented emergent electromagnetic phenomena. Whereas switching control of magnetic skyrmions, e.g., the transitions between a skyrmion-lattice phase and conventional magnetic orders, is intensively studied towards development of future memory device concepts, transitions among spin textures with different topological orders remain largely unexplored. Here we develop a series of chiral magnets MnSi1−xGex, serving as a platform for transitions among skyrmion- and hedgehog-lattice states. By neutron scattering, Lorentz transmission electron microscopy and high-field transport measurements, we observe three different topological spin textures with variation of the lattice constant controlled by Si/Ge substitution: two-dimensional skyrmion lattice in x = 0–0.25 and two distinct three-dimensional hedgehog lattices in x = 0.3–0.6 and x = 0.7–1. The emergence of various topological spin states in the chemical-pressure-controlled materials suggests a new route for direct manipulation of the spin-texture topology by facile mechanical methods.

Suggested Citation

  • Y. Fujishiro & N. Kanazawa & T. Nakajima & X. Z. Yu & K. Ohishi & Y. Kawamura & K. Kakurai & T. Arima & H. Mitamura & A. Miyake & K. Akiba & M. Tokunaga & A. Matsuo & K. Kindo & T. Koretsune & R. Arit, 2019. "Topological transitions among skyrmion- and hedgehog-lattice states in cubic chiral magnets," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
  • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-08985-6
    DOI: 10.1038/s41467-019-08985-6
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    Cited by:

    1. Erjian Cheng & Limin Yan & Xianbiao Shi & Rui Lou & Alexander Fedorov & Mahdi Behnami & Jian Yuan & Pengtao Yang & Bosen Wang & Jin-Guang Cheng & Yuanji Xu & Yang Xu & Wei Xia & Nikolai Pavlovskii & D, 2024. "Tunable positions of Weyl nodes via magnetism and pressure in the ferromagnetic Weyl semimetal CeAlSi," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    2. Cheng Hu & Jiajun Chen & Xianliang Zhou & Yufeng Xie & Xinyue Huang & Zhenghan Wu & Saiqun Ma & Zhichun Zhang & Kunqi Xu & Neng Wan & Yueheng Zhang & Qi Liang & Zhiwen Shi, 2024. "Collapse of carbon nanotubes due to local high-pressure from van der Waals encapsulation," Nature Communications, Nature, vol. 15(1), pages 1-8, December.

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