Quasi-Elastic Neutron Scattering of Green Dioptase to Unravel the Motion of the Water Molecules

DOI

Green dioptase is a naturally occurring mineral, that has a deep green colour, similar to that of an emerald, and with a chemical formula of CuSiO3.H2O. The Cu lies in quasi-1D chains and has three nearest neighbours, two along the chains and one with the adjacent chain. Since there are only three Cu nearest neighbours, this has led to some speculation for more exotic forms of magnetism; however our current work has shown that the system behaves like a 3D magnet at low temperatures. One unresolved issue is the location and behaviour of the water molecules. We intend to rectify this and have so far conducted neutron diffraction experiments on single crystals to allow us to locate the protons and water molecules. We have found evidence that the water molecules are dynamic this may affect other properties. Using Quasi-elastic neutron scattering we intend to probe this further.

Identifier
DOI https://doi.org/10.5286/ISIS.E.92921937
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/92921937
Provenance
Creator Dr Mark Telling; Dr Ian Terry; Dr Ian Silverwood; Dr Adam Berlie
Publisher ISIS Neutron and Muon Source
Publication Year 2021
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 2018-05-14T08:00:00Z
Temporal Coverage End 2018-06-05T13:17:30Z