Neutron Total Scattering Investigation of Temperature Driven Transitions in LaCoO3

DOI

This proposal is concerned with determining the local structure of LaCoO3 and observing changes within this as the material undergoes some well characterised temperature driven electronic transitions. At low temperature (< 50 K) LaCoO3 is a non-magnetic insulator with the trivalent cobalt in the low spin state configuration t2g6eg0. At ~100 K the material becomes paramagnetic and with increasing temperature the high-spin t2g4eg2 configuration is populated. Above 648 K charge transfer between spin states occurs and disproportionation into Co2+ and Co4+ species is observed.

Identifier
DOI https://doi.org/10.5286/ISIS.E.64322668
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/64322668
Provenance
Creator Dr Helen Playford; Dr Matthew Tucker; Dr Craig Bull
Publisher ISIS Neutron and Muon Source
Publication Year 2018
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 Chemistry; Natural Sciences; Physics
Temporal Coverage Begin 2015-09-29T07:00:00Z
Temporal Coverage End 2015-10-02T07:00:00Z