Magnetism of coupled spin tetrahedra in ilinskite-type KCu5O2(SeO3)2Cl3

Magnetism of coupled spin tetrahedra in ilinskite-type KCu5O2(SeO3)2Cl3

Abstract Synthesis, thermodynamic properties, and microscopic magnetic model of ilinskite-type KCu5O2(SeO3)2Cl3 built by corner-sharing Cu4 tetrahedra are reported, and relevant magnetostructural correlations are discussed. Quasi-one-dimensional magnetic behavior with the short-range order around 50...

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Bibliographic Details
Main Authors: Danis I. Badrtdinov, Elena S. Kuznetsova, Valeriy Yu. Verchenko, Peter S. Berdonosov, Valeriy A. Dolgikh, Vladimir V. Mazurenko, Alexander A. Tsirlin
Format: Article
Language:English
Published: Nature Publishing Group 2018-02-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-018-20350-z
Description
Summary:Abstract Synthesis, thermodynamic properties, and microscopic magnetic model of ilinskite-type KCu5O2(SeO3)2Cl3 built by corner-sharing Cu4 tetrahedra are reported, and relevant magnetostructural correlations are discussed. Quasi-one-dimensional magnetic behavior with the short-range order around 50 K is rationalized in terms of weakly coupled spin ladders (tubes) having a complex topology formed upon fragmentation of the tetrahedral network. This fragmentation is rooted in the non-trivial effect of the SeO3 groups that render the Cu–O–Cu superexchange strongly ferromagnetic even at bridging angles exceeding 110°.
ISSN:2045-2322

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