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Density correlation functions in the structural relaxation regime in liquid Ni, , , and at different temperatures. (a) shows an exponential decay at high temperatures (lines). (b) Rescaled of : A time–temperature superposition holds over the entire temperature range. The solid line represents a fit with a stretched exponential function giving a stretching exponent .
Relaxation times of structural relaxation in liquid Ni, NiP, PdNiP, and PdNiCuP. In all systems, exhibits a dependence (lines) also in an intermediate range. The slope represents the Ni self-diffusion coefficient .
Ni self-diffusion coefficients in pure liquid Ni and liquid NiP, PdNiP, and PdNiCuP alloys as obtained by quasielastic neutron scattering. The arrows indicate the corresponding liquidus temperatures.
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