Local study on the MoO4 units in AgI-doped silver molybdate glasses

Abstract The short-range order around molybdenum has been investigated in AgI-doped silver molybdate glasses (AgI) x (Ag 2 MoO 4 ) 1− x (with x  = 0.67 and 0.75) by Mo–K edge EXAFS measurements as a function of temperature. The difference from crystalline Ag 2 MoO 4 is weak. A softening of the Mo–O nearest-neighbours bond has been detected, but the MoO 4 units still exhibit high rigidity. Above the T g temperature, no meaningful evidence of local structural and dynamical modifications has been observed around molybdenum.