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Journal Article

Double-Q ground state with topological charge stripes in the centrosymmetric skyrmion candidate GdRu2Si2

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Holt,  S.
Faculty of Engineering and Physical Sciences, University of Southampton;
Computational Science, Scientific Service Units, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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Fulltext (public)

PhysRevB.107.L180402.pdf
(Publisher version), 977KB

Supplementary Material (public)

SI.pdf
(Supplementary material), 256KB

Citation

Wood, G. D. A., Khalyavin, D. D., Mayoh, D. A., Bouaziz, J., Hall, A. E., Holt, S., et al. (2023). Double-Q ground state with topological charge stripes in the centrosymmetric skyrmion candidate GdRu2Si2. Physical Review B, 107(18): L180402. doi:10.1103/PhysRevB.107.L180402.


Cite as: https://hdl.handle.net/21.11116/0000-000D-1766-7
Abstract
GdRu2Si2 is a centrosymmetric magnet in which a skyrmion lattice has recently been discovered. Here, we investigate the magnetic structure of the zero-field ground state using neutron diffraction on single crystal and polycrystalline 160GdRu2Si2. In addition to observing the principal propagation vectors q1 and q2, we discover higher-order magnetic satellites, notably q1+2q2. The appearance of these satellites is explained within the framework of a double-Q constant-moment solution. Using powder diffraction, we implement a quantitative refinement of this model. This structure, which contains vortexlike motifs, is shown to have a one-dimensional topological charge density.