Cycloidal Magnetic Order Promoted by Labile Mixed Anionic Paths in M2(SeO3)F2(M = Mn2+, Ni2+)

Zhu, T.; Mentré, O.; Yang, H.; Jin, Y.; Zhang, X.; Arévalo-López, Á.M.; Ritter, C.; Choi, K.-Y.; Lü, M.

doi:10.1021/acs.inorgchem.1c01074

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Cycloidal Magnetic Order Promoted by Labile Mixed Anionic Paths in M2(SeO3)F2(M = Mn2+, Ni2+)

Zhu, T.;
Mentré, O.;
Yang, H.;
Jin, Y.;
Zhang, X.;
외 4명

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초록

Two M2(SeO3)F2 fluoro-selenites (M = Mn2+, Ni2+) have been synthesized using optimized hydrothermal reactions. Their 3D framework consists of 1D-[MO2F2]4-chains of edge-sharing octahedra with a rare topology of alternating O-O and F-F μ2 bridges. The interchain corner-sharing connections are assisted by the mixed O vs F anionic nature and develop a complex set of M-X-M superexchanges as calculated by LDA+U. Their interplay induces prominent in-chain antiferromagnetic frustration, while the interchain exchanges are responsible for the cycloidal magnetic structure observed below TN ≈ 21.5 K in the Ni2+ case. For comparison the Mn2+ compound develops a nearly collinear spin (canted) ordering below TN ≈ 26 K with ferromagnetic chain units. © 2021 American Chemical Society.

키워드

RAY PHOTOELECTRON-SPECTROSCOPY; TOTAL-ENERGY CALCULATIONS; CRYSTAL-STRUCTURE; CO; FLUOROPHOSPHATES; METAL; FE

제목: Cycloidal Magnetic Order Promoted by Labile Mixed Anionic Paths in M2(SeO3)F2(M = Mn2+, Ni2+)

저자: Zhu, T.; Mentré, O.; Yang, H.; Jin, Y.; Zhang, X.; Arévalo-López, Á.M.; Ritter, C.; Choi, K.-Y.; Lü, M.

DOI: 10.1021/acs.inorgchem.1c01074

발행일: 2021-08-16

유형: Article

저널명: Inorganic Chemistry

권: 60

호: 16

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