Fig. 1 | Nature Communications

Fig. 1

From: Stretched and compressed exponentials in the relaxation dynamics of a metallic glass-forming melt

Fig. 1

Relaxation dynamics of the system at short times. Short-time behavior of the self-intermediate scattering function of particles with different local connectivity k (symbols). The wave-vector is q = 2.8 Å−1 and T = 1000 K. With increasing k the height of the peak at around 0.2 ps increases showing that the motion becomes less damped. The solid lines are fits to the data with Eq. (2). Also included is Fs(q, t) for the Cu atoms in an icosahedral cluster (dashed red line), the Cu atoms not in an icosahedral cluster (blue dashed line), and all Cu atoms (green). The black dashed line is the correlation function averaged over all atoms. The upper inset shows the same data in a larger time interval. The lower inset illustrates the definition of particles with different connectivities k: Particles in blue are the center of an icosahedral-like cluster

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