Magnetic structure study of the sawtooth chain antiferromagnet [Formula: see text]

A magnetic structure of the sawtooth-chain antiferromagnet [Formula: see text] was investigated by magnetization measurements, single crystalline and powder neutron diffraction experiments, and a further analysis on the Mössbauer spectra. These experiments revealed a nearly collinear antiferromagnet...

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Bibliographic Details
Published in:Scientific reports 2021-12, Vol.11 (1), p.24049-24049
Main Authors: Nawa, Kazuhiro, Avdeev, Maxim, Berdonosov, Peter, Sobolev, Alexey, Presniakov, Igor, Aslandukova, Alena, Kozlyakova, Ekaterina, Vasiliev, Alexander, Shchetinin, Igor, Sato, Taku J
Format: Article
Language:English
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Summary:A magnetic structure of the sawtooth-chain antiferromagnet [Formula: see text] was investigated by magnetization measurements, single crystalline and powder neutron diffraction experiments, and a further analysis on the Mössbauer spectra. These experiments revealed a nearly collinear antiferromagnetic structure with magnetic moments aligned along the b-axis, indicating dominant antiferromagnetic exchanges between Fe(1)-Fe(2) and Fe(2)-Fe(3) sites. The magnon dispersion relation derived from the linear spin wave approximation suggests the possible flat band nature of magnons.
ISSN:2045-2322
DOI:10.1038/s41598-021-03058-5