EVALUATION OF THE MEMORY KERNEL FOR FLUCTUATION DECAY IN SIMULATED GLASS-FORMING NI0.5ZR0.5 LIQUIDS

Molecular dynamics simulations for undercooled glass-forming Ni0.5Zr0. 5 liquids are analyzed to evaluate the memory kernel that governs the decay of structural fluctuations according to the schematic model of t he mode coupling theory. The resulting kernel exhibits significant str uctures which explains the absence of the inverse power law decay in t he early beta regime.