Structure of GeSe4 glass using neutron diffraction with isotope substitution

DOI

The structure of GeSe4 glass will be measured using the method of isotope substitution in neutron diffraction with both Ge and Se isotopes. This material is representative of a family of network forming glasses for which there is a transition in their physical properties around a mean coordination number n = 2.4. The results will yield unprecedented information on the structure of GeSe4 glass to help distinguish between the various models that have been proposed. These range from a chemically ordered network based on undefective GeSe4 corner-sharing tetrahedra, in which all Ge atoms are connected by Se2 dimers such that the fraction of Ge-Se-Se connections is 100%, to a phase separated model in which the fraction of Ge-Se-Se connections is zero. The diffraction results will be complemented by 77Se MAS NMR experiments and first principles molecular dynamics simulations.

Identifier
DOI https://doi.org/10.5286/ISIS.E.24089911
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/24089911
Provenance
Creator Professor Phil Salmon; Dr Anita Zeidler; Mr Keiron Pizzey; Mr Kamil Wezka; Miss Ruth Rowlands; Mr Angus Furneaux; Mr James Baron
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 2012-11-30T10:00:24Z
Temporal Coverage End 2012-12-05T10:41:05Z