The relation between the melt topology and glass-forming ability for liquid Ge-Se alloys

The topology of liquid Ge y Se 1-y (0<or=y<or=1) alloys, at the compositions y=0.33, 0.4, 0.5 and 1, is studied using neutron diffraction to measure the Bhatia-Thornton number-number partial structure factor S NN (kr 1 ), where k and r 1 are, respectively, the scattering vector and nearest-neighbour distance in real space. S NN (kr 1 ) has, for the range 0