SHORT RANGE ORDER IN SILVER BORATE GLASSES

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Abstract
The coordination of the silver cation in the glasses Ag2 O n B2O3 has been studied by EXAFS. The values of coordination number (N≈2) and Debye-Waller factor denote an high degree of short range order in the bond Ag-O. This differentiates silver borate glasses from sodium borate glasses. When the glasses are doped with AgI, the Ag∼O coordination is found to remain substantially unmodified. The coordination Ag-I is 4-fold

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