Diffuse neutron scattering study of Cu(2-x)Se.

Diffuse neutron scattering, when applied to the study of solid materials with high ionic conductivities, probes the difference between the instantaneous mobile ion positions and the time and positionally averaged positions obtained via crystallographic techniques. This information is important to the understanding of the microscopics of the conduction mechanisms in these materials, This work describes the diffuse neutron scattering from the copper ion conductor Cu(2-x)Se. The results indicate the presence of short range mobile ion correlations which are dynamic (have a relatively short lifetime). The correlations change as the "density" of the mobile ions changes.