Magnetism of coupled spin tetrahedra in ilinskite-type KCu(5)O(2)(SeO(3))(2)Cl(3)

Synthesis, thermodynamic properties, and microscopic magnetic model of ilinskite-type KCu(5)O(2)(SeO(3))(2)Cl(3) built by corner-sharing Cu(4) tetrahedra are reported, and relevant magnetostructural correlations are discussed. Quasi-one-dimensional magnetic behavior with the short-range order around...

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Detalles Bibliográficos
Autores principales: Badrtdinov, Danis I., Kuznetsova, Elena S., Verchenko, Valeriy Yu., Berdonosov, Peter S., Dolgikh, Valeriy A., Mazurenko, Vladimir V., Tsirlin, Alexander A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5799366/
https://www.ncbi.nlm.nih.gov/pubmed/29402893
http://dx.doi.org/10.1038/s41598-018-20350-z
Descripción
Sumario:Synthesis, thermodynamic properties, and microscopic magnetic model of ilinskite-type KCu(5)O(2)(SeO(3))(2)Cl(3) built by corner-sharing Cu(4) 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 SeO(3) groups that render the Cu–O–Cu superexchange strongly ferromagnetic even at bridging angles exceeding 110°.

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