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Magnetic interactions in the S = 1/2 square-lattice antiferromagnets Ba2CuTeO6 and Ba2CuWO6: parent phases of a possible spin liquid

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Abstract

The isostructural double perovskites Ba2CuTeO6 and Ba2CuWO6 are shown by theory and experiment to be frustrated square-lattice antiferromagnets with opposing dominant magnetic interactions. This is driven by differences in orbital hybridisation of Te6+ and W6+. A spin-liquid-like ground state is predicted for Ba2Cu(Te1−xWx)O6 solid solution similar to recent observations in Sr2Cu(Te1−xWx)O6.

Graphical abstract: Magnetic interactions in the S = 1/2 square-lattice antiferromagnets Ba2CuTeO6 and Ba2CuWO6: parent phases of a possible spin liquid

  • This article is part of the themed collection: Perovskites
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Publication details

The article was received on 28 Nov 2018, accepted on 02 Jan 2019 and first published on 02 Jan 2019


Article type: Communication
DOI: 10.1039/C8CC09479A
Citation: Chem. Commun., 2019, Advance Article
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    Magnetic interactions in the S = 1/2 square-lattice antiferromagnets Ba2CuTeO6 and Ba2CuWO6: parent phases of a possible spin liquid

    O. Mustonen, S. Vasala, H. Mutch, C. I. Thomas, G. B. G. Stenning, E. Baggio-Saitovitch, E. J. Cussen and M. Karppinen, Chem. Commun., 2019, Advance Article , DOI: 10.1039/C8CC09479A

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