Magnetic structure study of the sawtooth chain antiferromagnet Fe 2Se 2O 7

Kazuhiro Nawa; Maxim Avdeev; Peter Berdonosov; Alexey Sobolev; Igor Presniakov; Alena Aslandukova; Ekaterina Kozlyakova; Alexander Vasiliev; Igor Shchetinin; Taku J. Sato

doi:10.1038/s41598-021-03058-5

Magnetic structure study of the sawtooth chain antiferromagnet Fe ₂Se ₂O ₇

Kazuhiro Nawa, Maxim Avdeev, Peter Berdonosov, Alexey Sobolev, Igor Presniakov, Alena Aslandukova, Ekaterina Kozlyakova, Alexander Vasiliev, Igor Shchetinin, Taku J. Sato

IMRAM - Division of Inorganic Material Research

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

A magnetic structure of the sawtooth-chain antiferromagnet Fe ₂Se ₂O ₇ 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.

Original language	English
Article number	24049
Journal	Scientific Reports
Volume	11
Issue number	1
DOIs	https://doi.org/10.1038/s41598-021-03058-5
Publication status	Published - 2021 Dec

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title = "Magnetic structure study of the sawtooth chain antiferromagnet Fe 2Se 2O 7",

abstract = "A magnetic structure of the sawtooth-chain antiferromagnet Fe 2Se 2O 7 was investigated by magnetization measurements, single crystalline and powder neutron diffraction experiments, and a further analysis on the M{\"o}ssbauer 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.",

author = "Kazuhiro Nawa and Maxim Avdeev and Peter Berdonosov and Alexey Sobolev and Igor Presniakov and Alena Aslandukova and Ekaterina Kozlyakova and Alexander Vasiliev and Igor Shchetinin and Sato, {Taku J.}",

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doi = "10.1038/s41598-021-03058-5",

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T1 - Magnetic structure study of the sawtooth chain antiferromagnet Fe 2Se 2O 7

AU - Nawa, Kazuhiro

AU - Avdeev, Maxim

AU - Berdonosov, Peter

AU - Sobolev, Alexey

AU - Presniakov, Igor

AU - Aslandukova, Alena

AU - Kozlyakova, Ekaterina

AU - Vasiliev, Alexander

AU - Shchetinin, Igor

AU - Sato, Taku J.

PY - 2021/12

Y1 - 2021/12

N2 - A magnetic structure of the sawtooth-chain antiferromagnet Fe 2Se 2O 7 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.

AB - A magnetic structure of the sawtooth-chain antiferromagnet Fe 2Se 2O 7 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.

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JO - Scientific Reports

JF - Scientific Reports

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Magnetic structure study of the sawtooth chain antiferromagnet Fe ₂Se ₂O ₇

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