Wave vector dependence of the dynamics in supercooled metallic liquids

28 Aug 2020 Ruta B. Hechler S. Neuber N. Orsi D. Cristofolini L. Gross O. Bochtler B. Frey M. Kuball A. Riegler S. S. Stolpe M. Evenson Z. Gutt C. Westermeier F. Busch R. Gallino I.

We present a detailed investigation of the wave vector dependence of collective atomic motion in Au49Cu26.9Si16.3Ag5.5Pd2.3 and Pd42.5Cu27Ni9.5P21 supercooled liquids close to the glass transition temperature. Using x-ray photon correlation spectroscopy in a precedent uncovered spatial range of only few interatomic distances, we show that the microscopic structural relaxation process follows in phase the structure with a marked slowing down at the main average inter-particle distance... (read more)

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  • SOFT CONDENSED MATTER
  • DISORDERED SYSTEMS AND NEURAL NETWORKS