Figure 5
From: Structural investigation of borosilicate glasses containing lanthanide ions

Second-neighbor distribution functions obtained by RMC simulations for the Si-Ce (a), B-Ce (b), Si-Nd (c), B-Nd (d), Si-Eu (e) and B-Eu (f) in Matrix-Ce10, Nd10, Eu10 and Matrix-Ce30, Nd30, and Eu30 glasses.