Anion effect on the structure of Ag2S–AgPO3 superionic glasses

We report on time-of-flight neutron diffraction data measured on superionic-conducting glasses (Ag2S)x(AgPO3)1− x with x=0.5 and 0.7 at room temperature via the High-Intensity Total Scattering (HIT-II) instrument at KENS and we contrast the results with AgPO3, (AgI)0.5(AgPO3)0.5 and (AgI)0.33(Ag2S)0.33(AgPO3)0.34 glasses. The structure factor of (AgI)0.5(AgPO3)0.5 shows a strong prepeak at low Q∼0.8 Å−1 in contrast to the undoped glass AgPO3 …