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Chirality-inverted Dzyaloshinskii-Moriya interaction
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SYSNO ASEP 0576776 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve SCOPUS Title Chirality-inverted Dzyaloshinskii-Moriya interaction Author(s) Zakeri, Kh. (DE)
Marmodoro, Alberto (FZU-D) ORCID
von Faber, A. (DE)
Mankovsky, S. (DE)
Ebert, H. (DE)Number of authors 5 Article number L100403 Source Title Physical Review B. - : American Physical Society - ISSN 2469-9950
Roč. 108, č. 10 (2023)Number of pages 6 s. Language eng - English Country US - United States Keywords Dzyaloshinskii-Moriya interaction Chiral magnets ; chirality-inverted DMI Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects GA23-04746S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 EID SCOPUS 85172213449 DOI https://doi.org/10.1103/PhysRevB.108.L100403 Annotation The Dzyaloshinskii-Moriya interaction (DMI) is an antisymmetric exchange interaction, which is responsible for the formation of topologically protected spin textures in chiral magnets. Here, by measuring the dispersion relation of the DM energy, we quantify the atomistic DMI in a model system, i.e., a Co double layer on Ir(001). We unambiguously demonstrate the presence of a chirality-inverted DMI, i.e., a sign change in the chirality index of DMI from negative to positive, when comparing the interaction between nearest neighbors to that between neighbors located at longer distances. The effect is in analogy to the change in the character of the Heisenberg exchange interaction from, e.g., ferromagnetic to antiferromagnetic. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2024 Electronic address https://doi.org/10.1103/PhysRevB.108.L100403
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