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Glass crystallization dynamics

Time-resolved study of the crystallization dynamics in a metallic glass

In this paper we report on the first published investigation of atomic-scale dynamics in a metallic glass. By applying our newly demonstrated technique of atomic-scale X-ray Photon Correlation Spectroscopy we have been able to measure the dynamics on the atomic scale in real time. We show that within on the order of 100 atomic rearrangements the sample evolves from the pristine glassy state to a partly crystalline state, with a continuous slowing-down of dynamics, and we fit this behaviour with a phenomenological theory, giving an activation energy of 1.95 ± 0.10 eV.

It is published in Physical Review B, volume 86, 064202. It is freely accessible here, note that the copyright is held by the American Physical Society.
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