Vital role of magnetocrystalline anisotropy in cubic chiral skyrmion hosts

Abstract Magnetic anisotropy is anticipated to govern the formation of exotic spin textures reported recently in cubic chiral magnets, like low-temperature tilted conical and skyrmion lattice (SkL) states and metastable SkLs with various lattice geometry. Motivated by these findings, we quantified t...

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Autores principales: M. Preißinger, K. Karube, D. Ehlers, B. Szigeti, H.-A. Krug von Nidda, J. S. White, V. Ukleev, H. M. Rønnow, Y. Tokunaga, A. Kikkawa, Y. Tokura, Y. Taguchi, I. Kézsmárki
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Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/9f49956e1a2a4bb0a66f63085acb4689
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spelling oai:doaj.org-article:9f49956e1a2a4bb0a66f63085acb46892021-12-02T18:34:00ZVital role of magnetocrystalline anisotropy in cubic chiral skyrmion hosts10.1038/s41535-021-00365-y2397-4648https://doaj.org/article/9f49956e1a2a4bb0a66f63085acb46892021-07-01T00:00:00Zhttps://doi.org/10.1038/s41535-021-00365-yhttps://doaj.org/toc/2397-4648Abstract Magnetic anisotropy is anticipated to govern the formation of exotic spin textures reported recently in cubic chiral magnets, like low-temperature tilted conical and skyrmion lattice (SkL) states and metastable SkLs with various lattice geometry. Motivated by these findings, we quantified the cubic anisotropy in a series of CoZnMn-type cubic chiral magnets. We found that the strength of anisotropy is highly enhanced towards low temperatures. Moreover, not only the magnitude but also the character of cubic anisotropy drastically varies upon changing the Co/Mn ratio. We correlate these changes with temperature- and composition-induced variations of the helical modulation vectors, deformations of skyrmions, structural rearrangements of the metastable SkLs and the large enhancement of Gilbert damping. Similar studies on magnetic anisotropy are required for the quantitative, unified description of the known stable and metastable modulated spin textures and for the systematic exploration of novel ones in this large class of skyrmion hosts.M. PreißingerK. KarubeD. EhlersB. SzigetiH.-A. Krug von NiddaJ. S. WhiteV. UkleevH. M. RønnowY. TokunagaA. KikkawaY. TokuraY. TaguchiI. KézsmárkiNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492Atomic physics. Constitution and properties of matterQC170-197ENnpj Quantum Materials, Vol 6, Iss 1, Pp 1-9 (2021)
institution DOAJ
collection DOAJ
language EN
topic Materials of engineering and construction. Mechanics of materials
TA401-492
Atomic physics. Constitution and properties of matter
QC170-197
spellingShingle Materials of engineering and construction. Mechanics of materials
TA401-492
Atomic physics. Constitution and properties of matter
QC170-197
M. Preißinger
K. Karube
D. Ehlers
B. Szigeti
H.-A. Krug von Nidda
J. S. White
V. Ukleev
H. M. Rønnow
Y. Tokunaga
A. Kikkawa
Y. Tokura
Y. Taguchi
I. Kézsmárki
Vital role of magnetocrystalline anisotropy in cubic chiral skyrmion hosts
description Abstract Magnetic anisotropy is anticipated to govern the formation of exotic spin textures reported recently in cubic chiral magnets, like low-temperature tilted conical and skyrmion lattice (SkL) states and metastable SkLs with various lattice geometry. Motivated by these findings, we quantified the cubic anisotropy in a series of CoZnMn-type cubic chiral magnets. We found that the strength of anisotropy is highly enhanced towards low temperatures. Moreover, not only the magnitude but also the character of cubic anisotropy drastically varies upon changing the Co/Mn ratio. We correlate these changes with temperature- and composition-induced variations of the helical modulation vectors, deformations of skyrmions, structural rearrangements of the metastable SkLs and the large enhancement of Gilbert damping. Similar studies on magnetic anisotropy are required for the quantitative, unified description of the known stable and metastable modulated spin textures and for the systematic exploration of novel ones in this large class of skyrmion hosts.
format article
author M. Preißinger
K. Karube
D. Ehlers
B. Szigeti
H.-A. Krug von Nidda
J. S. White
V. Ukleev
H. M. Rønnow
Y. Tokunaga
A. Kikkawa
Y. Tokura
Y. Taguchi
I. Kézsmárki
author_facet M. Preißinger
K. Karube
D. Ehlers
B. Szigeti
H.-A. Krug von Nidda
J. S. White
V. Ukleev
H. M. Rønnow
Y. Tokunaga
A. Kikkawa
Y. Tokura
Y. Taguchi
I. Kézsmárki
author_sort M. Preißinger
title Vital role of magnetocrystalline anisotropy in cubic chiral skyrmion hosts
title_short Vital role of magnetocrystalline anisotropy in cubic chiral skyrmion hosts
title_full Vital role of magnetocrystalline anisotropy in cubic chiral skyrmion hosts
title_fullStr Vital role of magnetocrystalline anisotropy in cubic chiral skyrmion hosts
title_full_unstemmed Vital role of magnetocrystalline anisotropy in cubic chiral skyrmion hosts
title_sort vital role of magnetocrystalline anisotropy in cubic chiral skyrmion hosts
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/9f49956e1a2a4bb0a66f63085acb4689
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