Investigation of the new spin-ladder compound MgCu2O3

DOI

Here we propose to investigate the excitation spectrum of the new spin-ladder compound MgCu2O3. Unlike typical spin-ladders this compound has a rung coupling that is much weaker (and possible ferromagnetic) than the leg coupling thus the ladder gap will be small and the excitations will consist of free spinons at high energies and bound spinons at low energies. A cyclic interaction is also expected and would further modify the gaps and could potentially drive the system gapless to the Wess-Zumino-Novikov-Witten quantum critical point. Beyond this QCP lies the unexplored spontaneous dimerised phase. It is unknown where MgCu2O3 lies within this rich phase diagram However by measuring the spectrum over both large and small energy ranges it should be possible to understand more about magnetic correlations in this sytem

Identifier
DOI https://doi.org/10.5286/ISIS.E.24088672
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/24088672
Provenance
Creator Dr Bella Lake; Dr Nazmul Islam; Dr Christian Balz
Publisher ISIS Neutron and Muon Source
Publication Year 2015
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 2012-02-28T08:39:29Z
Temporal Coverage End 2012-02-29T11:44:15Z