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

Research output: Contribution to journalArticleScientificpeer-review


  • Otto Mustonen
  • Sami Vasala
  • Heather Mutch
  • Chris I. Thomas
  • Gavin B.G. Stenning
  • Elisa Baggio-Saitovitch
  • Edmund J. Cussen
  • Maarit Karppinen

Research units

  • University of Sheffield
  • Centro Brasileiro de Pesquisas Físicas
  • Technische Universität Darmstadt
  • Rutherford Appleton Laboratory


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.


Original languageEnglish
Pages (from-to)1132-1135
Number of pages4
JournalChemical Communications
Issue number8
Publication statusPublished - 1 Jan 2019
MoE publication typeA1 Journal article-refereed

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