Structural evidence for fast-ion conduction in the silver and copper halides at high temperatures and pressures

The results of recent powder neutron diffraction investigations of the high pressure and high temperature phases within the binary Cu and Ag halides are summarised, with emphasis on the relationship between the observed structural disorder and evidence for fast-ion behaviour provided by other techniques such as ionic conductivity measurements, differential thermal analysis and molecular dynamics simulations. Paper presented at the 4th Euroconference on Solid State Ionics, Renvyle, Galway, Ireland, Sept. 13–19, 1997