Dynamical evidence for sublattice melting in a superionic conductor: NMR on CuI

摘要: Abstract An anomalous increase in the NMR relaxation rates of copper and iodine nuclei CuI has been observed as insulator-to-superionic conductor phase transition is approached. This supports idea a sublattice melting major source high ionic conductivity these materials. From measurements other available data at temperatures, it concluded that superionic indeed molten.