Abstract: Abstract The interatomic distance, R , coordination number, CN, and degree of disorder, Δσ 2 , around the mobile (Rb,Ag) as well as the network-forming (Ge) cations are obtained using EXAFS (extended X-ray absorption fine structure) of x Rb 2 O·(1− x )GeO 2 and mixed rubidium-silver germanate 0.2[ y Ag·(1− y )Rb] 2 O·0.8GeO 2 glasses with x = 0.01, 0.02, 0.05, 0.10, 0.15, 0.20, 0.30, 0.40 and y = 0, 0.25, 0.50, 0.75, 1.00. The non-bridging oxygen (NBO) and bridging oxygen (BO) concentrations are determined by X-ray photoelectron spectr...
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Topics: 
Crystallography