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Updated: Feb 14, 2026

High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy
Published on: October 9, 2020
Magnetism of coupled spin tetrahedra in ilinskite-type KCu5O2(SeO3)2Cl3
Danis I Badrtdinov1, Elena S Kuznetsova2, Valeriy Yu Verchenko2,3
1Theoretical Physics and Applied Mathematics Department, Ural Federal University, 620002, Ekaterinburg, Russia. reason2205@yandex.ru.
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°.
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