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  4. Anisotropy-Dependent Decay of Room Temperature Metastable Skyrmions and a Nascent Double-q Spin Texture in Co8Zn9Mn3
 
research article

Anisotropy-Dependent Decay of Room Temperature Metastable Skyrmions and a Nascent Double-q Spin Texture in Co8Zn9Mn3

White, Jonathan S.
•
Ukleev, Victor
•
Yu, Le  
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May 7, 2025
Advanced Materials

Chiral cubic Co‐Zn‐Mn magnets exhibit diverse topological spin textures, including room‐temperature skyrmion phases and robust far‐from‐equilibrium metastable states. Despite recent advances in understanding metastable skyrmions, the interplay between compositional disorder and varying magnetic anisotropy on the stability and decay of metastable textures, particularly near room temperature, remains incompletely understood. In this work, the equilibrium and metastable skyrmion formation in Co 8 Zn 9 Mn 3 is examined, revealing transformations between distinct metastable spin textures induced by temperature and magnetic field. At room temperature, the decay dynamics of metastable skyrmions exhibits a strong dependence on magnetic anisotropy, showcasing a route towards tailoring relaxation behavior. Furthermore, a nascent double‐ q spin texture, characterized by two coexisting magnetic modulation vectors q , is identified as a minority phase alongside the conventional triple‐ q hexagonal skyrmion lattice. This double‐ q texture can be quenched as a metastable state, suggesting both its topological character, and its role as a potential intermediary of metastable skyrmion decay. These findings provide new insights into the tunability of equilibrium and metastable topological spin textures via chemical composition and magnetic anisotropy, offering strategies for designing materials with customizable and dynamic skyrmion properties for advanced technological applications.

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Type
research article
DOI
10.1002/adma.202501146
Author(s)
White, Jonathan S.
Ukleev, Victor
Yu, Le  

École Polytechnique Fédérale de Lausanne

Tokura, Yoshinori
Taguchi, Yasujiro
Karube, Kosuke
Date Issued

2025-05-07

Publisher

Wiley

Published in
Advanced Materials
Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
EPFL  
FunderFunding(s)Grant NumberGrant URL

Swiss National Science Foundation

CRSII5_171003,200021_188707

Japan Science and Technology Agency

JPMJCR20T1,JPMJCR1874,JPMJFR235R

Japan Society for the Promotion of Science London

23K26534

Available on Infoscience
May 9, 2025
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/249988
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