Low-energy excitations of the quantum critical S=1/2 ladder material Ba2CuTeO6

DOI

Ba2CuTeO6 is a newly discovered S=1/2 spin ladder material thought to be uniquely close to the theoretically predicted quantum critical point of the coupled two-leg spin ladder system. We have already extensively characterized the material using NMR, magnetic susceptibility, specific heat, torque magnetometry and powder neutron diffraction. Most recently we have performed inelastic neutron scattering measurements using MERLIN and observed key signatures of coupled ladder physics. The MERLIN data investigated the magnetic excitation spectrum above ~2 meV and here we plan to extend the study of the spin excitations with high-resolution measurements at lower energies to test for the presence or absence of a spin gap, as this is a key ingredient required to parameterize how close the system is to the quantum critical point.

Identifier
DOI https://doi.org/10.5286/ISIS.E.83552909
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/83552909
Provenance
Creator Professor Hidenori Takagi; Dr Franz Demmel; Professor Radu Coldea; Mr David Macdougal; Dr Alexandra Gibbs
Publisher ISIS Neutron and Muon Source
Publication Year 2019
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 Natural Sciences; Physics
Temporal Coverage Begin 2016-11-22T09:00:00Z
Temporal Coverage End 2016-11-25T09:00:00Z