Abstract
The compound Cu 1.10Cr 1.30Sn 0.70S 3.90 has been studied by neutron diffraction. It belongs to the spinel structural type, but the formula indicates a copper excess with respect to the ideal spinel composition. The structural refinements have been performed according to the Rietveld method. Chromium and tin are located on the 16d octahedral sites (B-sublattice of the spinel structure). 0.95 copper occupy the 8a tetrahedral sites (A-sublattice) whereas 0.15 copper is found on the 16c octahedral sites which would be unoccupied in an ideal stoichiometric spinel. The R value is 3.6 %. The excess spinel is found to slowly release the copper excess leading to Cu 2S formation. The question whether short metal-metal distances or epitaxy phenomenon are involved is discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
