On the intermediate range structure in phosphate glasses

Abstract

Abstract The first prominent peak observed at s 1 in the total X‐ray structure factors, S(s ), of metaphosphate glasses containing the metal ions Li, Na, K, Ag, Ba, Sr, Cd, Pb, and of barium phosphate glasses with BaO mol% concentrations ranging from 2.5 to 56.5 has been studied to extract information on the intermediate range structure. The period, 27π/ s 1 , of the quasi‐periodic real‐space electron density fluctuations is shown to be correlated with the ionic volume fractions of the glasses.