Magnetic and nuclear structure in a new S=0.5 kagome antiferromagnet, SrCu3V2O8(OD)2

DOI

S=0.5 kagome antiferromagnets (KAFM) provide the most promising model system for realising the Resonating Valence Bond (RVB) state. Several S=0.5 KAFM materials are currently known and under study, but none can be considered structurally perfect. We have succeeded in synthesising the strontium analogue of vesignieite to form a new S=0.5 KAFM, SrCu3V2O8(OH)2. The material crystallises in a P3 related structure, so the kagome planes will possess 3 fold rotational symmetry, unlike vesignieite, but distortions may allow different sizes of equilateral triangle in the same kagome plane. The material undergoes an antiferromagnetic transition at T~11K accompanied by a ZFC-FC splitting. This may represent the mixing of a triplet component into the AFM ground state. We propose a powder diffraction experiment at WISH to characterise the magnetism and resolve questions about the crystal structure.

Identifier
DOI https://doi.org/10.5286/ISIS.E.24090613
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/24090613
Provenance
Creator Dr Pascal Manuel; Professor Andrew Wills; Mr David Boldrin
Publisher ISIS Neutron and Muon Source
Publication Year 2016
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Representation
Resource Type Dataset
Discipline Photon- and Neutron Geosciences
Temporal Coverage Begin 2013-06-09T08:37:14Z
Temporal Coverage End 2013-06-10T09:07:47Z