Structural Studies on New Superionic (AgI) 0.8 –(NaPO 3 ) 0.2 and (AgI) 0.7 –(NaPO 3 ) 0.3 at Room Temperature

Abstract

Room temperature powder neutron diffractions have been performed to investigate the structure of (AgI)_0.8– (NaPO₃)_0.2 and (AgI)_0.7–(NaPO₃)_0.3 composites consisting of AgI crystalline precipitated in a glassy NaPO₃ network. Unlike (AgI)_0.8–(NaPO₃)_0.2 and most silver-based superionic materials, (AgI)_0.7–(NaPO₃)_0.3 contains Ag₅IP₂O₇ instead of βAgI and less γAgI. The diffuse background levels of both composites are similar and largely dominated by NaPO₃ amorphous phase.