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

Y. Fujishiro, N. Kanazawa, T. Nakajima, X. Z. Yu, K. Ohishi, Y. Kawamura, K. Kakurai, T. Arima, H. Mitamura, A. Miyake, Kazuto Akiba, M. Tokunaga, A. Matsuo, K. Kindo, T. Koretsune, R. Arita, Y. Tokura

Research output: Contribution to journalArticle

6 Citations (Scopus)

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 MnSi 1−x Ge x , 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.

Original languageEnglish
Article number1059
JournalNature communications
Volume10
Issue number1
DOIs
Publication statusPublished - Dec 1 2019
Externally publishedYes

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Magnets
Electromagnetic Phenomena
Neutrons
Transmission Electron Microscopy
magnets
Textures
Pressure
Equipment and Supplies
textures
Neutron scattering
Lattice constants
Substitution reactions
Topology
manipulators
Transmission electron microscopy
Data storage equipment
neutron scattering
topology
platforms
routes

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

Cite this

Fujishiro, Y., Kanazawa, N., Nakajima, T., Yu, X. Z., Ohishi, K., Kawamura, Y., ... Tokura, Y. (2019). Topological transitions among skyrmion- and hedgehog-lattice states in cubic chiral magnets. Nature communications, 10(1), [1059]. https://doi.org/10.1038/s41467-019-08985-6

Topological transitions among skyrmion- and hedgehog-lattice states in cubic chiral magnets. / Fujishiro, Y.; Kanazawa, N.; Nakajima, T.; Yu, X. Z.; Ohishi, K.; Kawamura, Y.; Kakurai, K.; Arima, T.; Mitamura, H.; Miyake, A.; Akiba, Kazuto; Tokunaga, M.; Matsuo, A.; Kindo, K.; Koretsune, T.; Arita, R.; Tokura, Y.

In: Nature communications, Vol. 10, No. 1, 1059, 01.12.2019.

Research output: Contribution to journalArticle

Fujishiro, Y, Kanazawa, N, Nakajima, T, Yu, XZ, Ohishi, K, Kawamura, Y, Kakurai, K, Arima, T, Mitamura, H, Miyake, A, Akiba, K, Tokunaga, M, Matsuo, A, Kindo, K, Koretsune, T, Arita, R & Tokura, Y 2019, 'Topological transitions among skyrmion- and hedgehog-lattice states in cubic chiral magnets', Nature communications, vol. 10, no. 1, 1059. https://doi.org/10.1038/s41467-019-08985-6
Fujishiro, Y. ; Kanazawa, N. ; Nakajima, T. ; Yu, X. Z. ; Ohishi, K. ; Kawamura, Y. ; Kakurai, K. ; Arima, T. ; Mitamura, H. ; Miyake, A. ; Akiba, Kazuto ; Tokunaga, M. ; Matsuo, A. ; Kindo, K. ; Koretsune, T. ; Arita, R. ; Tokura, Y. / Topological transitions among skyrmion- and hedgehog-lattice states in cubic chiral magnets. In: Nature communications. 2019 ; Vol. 10, No. 1.
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