OVERVIEW In theory, any molten material can form a glass when quenched fast enough.
Most natural glasses are based on silicates and for thousands of years only alkali/alkaline …

We investigate the experimental limits of validity of the Stokes–Einstein equation. There is
an important difference between diffusion and self-diffusion. The experimental evidences …

During the last years the interest to study the silvercontaining glass-forming systems has
increased, due to the possibility to obtain materials exhibiting high ion conductivity [1–5]. By …

Superionic materials are a class of materials which possess ionic conduction similar to that
of molten salt. This type of materials has a conductivity up to 1 (Ω cm)− 1, while most solids …

A new superionic Ag+ conductor with a nominal composition Ag17 (CO3) 3I11 (11AgI–
3Ag2CO3) was found in the AgI–Ag2CO3 system. The conductor, which was formed at …

New measurements have been made of a new series of AgI-doped Ag2S+ B2S3+ SiS2 FIC
glasses that exhibit a dramatic non-Arrhenius temperature dependence of the conductivity …

The characterisation of the local structure of disordered materials is one of the major
applications of x‐ray absorption fine structure (XAFS) spectroscopy. XAFS site sensitivity has …

A model of diffusion accounting for a distribution of barriers heights is developed. It is
demonstrated that activation energy of diffusion depends on the maximal height of barrier …