Journal Article

PUBDB-2025-03736

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Local Dzyaloshinskii-Moriya Interactions Driving Quasi-2D Magnetism in a Centrosymmetric Nanoskyrmion Material

Moody, S. (Corresponding author)Extern* ; Bereciartua Perez, P. J.DESY* ; Francoual, S.DESY* ; Littlehales, M. ; Wilson, M. ; Gomilšek, M. ; Birch, M. T. ; Mayoh, D. ; Balakrishnan, G. ; Hatton, P.

2025
APS College Park, Md.

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Please use a persistent id in citations: doi:10.1103/td2c-dxgj  doi:10.3204/PUBDB-2025-03736

Abstract: The unabating discovery of nanoskyrmions in centrosymmetric magnets challenges the conventional Dzyaloshinskii-Moriya (DM) skyrmion stabilization mechanism. We investigate Gd$_2$⁢PdSi$_3$ using polarized resonant x-ray scattering and find that the low-field incommensurate modulations are elliptical helices, evolving into spin-density waves at higher fields. Quasi-2D magnetism arises via local DM interactions generated by inversion symmetry breaking around Gd-Gd bonds, which we characterize using atomistic simulations. Our findings suggest a prominent “hidden” role of DM interactions even in centrosymmetric skyrmionic hosts.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)
2. PETRA-S (FS-PETRA-S)

Research Program(s):

1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)
2. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
3. FS-Proposal: I-20191239 EC (I-20191239-EC) (I-20191239-EC)

Experiment(s):

1. PETRA Beamline P09 (PETRA III)

Appears in the scientific report 2025

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; Nationallizenz ; SCOAP3 sponsored Journal ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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