Neel-type skyrmion lattice with confined orientation in the polar magnetic semiconductor GaV4S8

I. Kezsmarki, S. Bordacs, P. Milde, E. Neuber, L. M. Eng, J. S. White, H. M. Rønnow, C. D. Dewhurst, Masahito Mochizuki, K. Yanai, H. Nakamura, D. Ehlers, V. Tsurkan, A. Loidl

研究成果: Article

195 引用 (Scopus)

抄録

Following the early prediction of the skyrmion lattice (SkL)-a periodic array of spin vortices-it has been observed recently in various magnetic crystals mostly with chiral structure. Although non-chiral but polar crystals with Cnv symmetry were identified as ideal SkL hosts in pioneering theoretical studies, this archetype of SkL has remained experimentally unexplored. Here, we report the discovery of a SkL in the polar magnetic semiconductor GaV4S8 with rhombohedral (C3v) symmetry and easy axis anisotropy. The SkL exists over an unusually broad temperature range compared with other bulk crystals and the orientation of the vortices is not controlled by the external magnetic field, but instead confined to the magnetic easy axis. Supporting theory attributes these unique features to a new Neel-type of SkL describable as a superposition of spin cycloids in contrast to the Bloch-type SkL in chiral magnets described in terms of spin helices.

元の言語English
ページ(範囲)1116-1122
ページ数7
ジャーナルNature Materials
14
発行部数11
DOI
出版物ステータスPublished - 2015 11 1
外部発表Yes

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Magnetic semiconductors
Crystal lattices
Crystal orientation
Crystal symmetry
Crystals
Vortex flow
Magnets
Anisotropy
Magnetic fields
cycloids
vortices
crystals
symmetry
helices
magnets
Temperature
anisotropy
predictions
magnetic fields

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

これを引用

Kezsmarki, I., Bordacs, S., Milde, P., Neuber, E., Eng, L. M., White, J. S., ... Loidl, A. (2015). Neel-type skyrmion lattice with confined orientation in the polar magnetic semiconductor GaV4S8. Nature Materials, 14(11), 1116-1122. https://doi.org/10.1038/nmat4402

Neel-type skyrmion lattice with confined orientation in the polar magnetic semiconductor GaV4S8. / Kezsmarki, I.; Bordacs, S.; Milde, P.; Neuber, E.; Eng, L. M.; White, J. S.; Rønnow, H. M.; Dewhurst, C. D.; Mochizuki, Masahito; Yanai, K.; Nakamura, H.; Ehlers, D.; Tsurkan, V.; Loidl, A.

:: Nature Materials, 巻 14, 番号 11, 01.11.2015, p. 1116-1122.

研究成果: Article

Kezsmarki, I, Bordacs, S, Milde, P, Neuber, E, Eng, LM, White, JS, Rønnow, HM, Dewhurst, CD, Mochizuki, M, Yanai, K, Nakamura, H, Ehlers, D, Tsurkan, V & Loidl, A 2015, 'Neel-type skyrmion lattice with confined orientation in the polar magnetic semiconductor GaV4S8', Nature Materials, 巻. 14, 番号 11, pp. 1116-1122. https://doi.org/10.1038/nmat4402
Kezsmarki I, Bordacs S, Milde P, Neuber E, Eng LM, White JS その他. Neel-type skyrmion lattice with confined orientation in the polar magnetic semiconductor GaV4S8. Nature Materials. 2015 11 1;14(11):1116-1122. https://doi.org/10.1038/nmat4402
Kezsmarki, I. ; Bordacs, S. ; Milde, P. ; Neuber, E. ; Eng, L. M. ; White, J. S. ; Rønnow, H. M. ; Dewhurst, C. D. ; Mochizuki, Masahito ; Yanai, K. ; Nakamura, H. ; Ehlers, D. ; Tsurkan, V. ; Loidl, A. / Neel-type skyrmion lattice with confined orientation in the polar magnetic semiconductor GaV4S8. :: Nature Materials. 2015 ; 巻 14, 番号 11. pp. 1116-1122.
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AU - Bordacs, S.

AU - Milde, P.

AU - Neuber, E.

AU - Eng, L. M.

AU - White, J. S.

AU - Rønnow, H. M.

AU - Dewhurst, C. D.

AU - Mochizuki, Masahito

AU - Yanai, K.

AU - Nakamura, H.

AU - Ehlers, D.

AU - Tsurkan, V.

AU - Loidl, A.

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