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An ionothermally prepared S=1/2 vanadium oxyfluoride kagome lattice

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Farida Himeur Himeur, David William Aldous, Richard John Goff, Alexandra Martha Zoya Slawin, J. Paul Attfield, Russell Edward Morris, Philip Lightfoot

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Abstract

Frustrated magnetic lattices offer the possibility of many exotic ground states that are of great fundamental importance. Of particular significance is the hunt for frustrated spin-1/2 networks as candidates for quantum spin liquids, which would have exciting and unusual magnetic properties at low temperatures. The few reported candidate materials have all been based on d9 ions. Here, we report the ionothermal synthesis of [NH4]2[C7H14N][V7O6F18], an inorganic-organic hybrid solid that contains a S = 1/2 kagome network of d1 V4+ ions. The compound exhibits a high degree of magnetic frustration, with significant antiferromagnetic interactions but no long-range magnetic order or spin-freezing above 2 K, and appears to be an excellent candidate for realizing a quantum spin liquid ground state in a spin-1/2 kagome network.

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Original languageEnglish
Pages (from-to)801-806
Number of pages6
JournalNature Chemistry
Volume3
Issue number10
DOIs
Publication statusPublished - Oct 2011

    Research areas

  • Frustrated magnets, Coordination polymers, Ionic liquids, Temperature, Pyrochlore, Frameworks, Induction, Chemistry, Zeolites, Template

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