ISIS Neutron and Muon Source Data Journal

Ferroelastic transitions in quantum critical tetragonal tungsten bronzes

Abstract: Tetragonal tungsten bronzes have three types of channels for ions with the smallest unusually occupied with Li in potassium lithium tantalate (KLT). This creates complexity within the crystal structure with sintering conditions affecting the final structure of KLT. For the “stoichiometric” KLT sample, there is an orthorhombic structure at room temperature. The original investigations were undertaken to confirm quantum criticality exists around 0 K. This proposal is based above room temperature, where there is a suspected ferroelastic transition, involving losing this orthorhombic distortion, into an unknown tetragonal phase. By other types of measurements attempted, structural characterisation is not possible. Neutron studies are to confirm the structure of these phases and see if they are similar to non-stoichiometric room temperature tetragonal KLT samples previously characterised.

Principal Investigator: Professor James Scott
Experimenter: Mr Hang Liu
Local Contact: Dr Alexandra Gibbs
Experimenter: Miss Rebecca Mary Smith
Experimenter: Mr Grant William Howieson

DOI: 10.5286/ISIS.E.RB1920090

ISIS Experiment Number: RB1920090

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Professor James Scott et al; (2019): Ferroelastic transitions in quantum critical tetragonal tungsten bronzes, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1920090

Data is released under the CC-BY-4.0 license.