Abstract
(1 − x)AgPO 3 xAg 2SO 4 homogeneous glasses obtained by quenching of a melt of the two salts are pure ionic Ag + conductors. The RT conductivity is increased from 2.5 × 10 −7 to 4 × 10 −6 (Ω cm) −1 when the ratio of Ag 2SO 4 is increased from 0 to 0.3. Raman spectroscopy shows that no modifications of the (PO 3) ∞ chain skeleton occur by adding Ag 2SO 4. The low-frequency Raman band lying at about 55 cm −1 is quantitatively correlated to Ag + oscillations, the hopping distance decreasing from 3.0 to 2.7 Å if a jump process between regular Ag + sites is considered.
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