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dc.contributor.authorDanilkin, SA-
dc.contributor.authorAvdeev, M-
dc.contributor.authorSale, M-
dc.contributor.authorSakuma, T-
dc.identifier.citationDanilkin, S. A., Avdeev, M., Sale, M., & Sakuma, T. (2012). Neutron scattering study of ionic diffusion in Cu–Se superionic compounds. Solid State Ionics, 225, 190-193 (Special Issue SI). doi:10.1016/j.ssi.2012.02.046en_AU
dc.description.abstractPaper reports the results of the neutron scattering study of crystal structure and diffusion of Cu2 − δSe compounds in superionic α-phase. We found that the crystallographic model with Cu atoms in the 8c (0.25, 0.25, 0.25) and 32f (x, x, x) (x = 0.33–0.39) sites in fluorite lattice provides the best description of the average structure. The quasi-elastic neutron scattering data reveal the decrease of the self-diffusion coefficient with the deviation from the stoichiometry due to the longer residence time of Cu atoms between diffusion hops. Combination of neutron diffraction, quasi-elastic scattering experimental data with the Bond-Valence Method simulations strongly suggests that the Cu atoms diffuse between the nearest 8c sites through the 32f sites. © 2012, Elsevier Ltd.en_AU
dc.publisherElsevier Science BVen_AU
dc.subjectIonic conductivityen_AU
dc.titleNeutron scattering study of ionic diffusion in Cu–Se superionic compoundsen_AU
dc.typeJournal Articleen_AU
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