Regensburg 2010 – scientific programme
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MM: Fachverband Metall- und Materialphysik
MM 8: Intermetallic Phases II
MM 8.4: Talk
Monday, March 22, 2010, 12:15–12:30, H5
Lattice dynamics in complex metallic alloys — •Holger Euchner1, Marc de Boissieu3, and Marek Mihalkovič2 — 1Institut für Theoretische und Angewandte Physik, Universität Stuttgart, Stuttgart, Germany — 2Slovak Academy of Sciences, Bratislava, Slovakia — 3Science et Ingénierie des Matériaux et Procédés, INP Grenoble CNRS UJF, Saint Martin d’Hères Cedex, France
We report on the vibrational properties of a series of complex metallic alloys with different degrees of structural complexity.
Dynamic structure factor and vibrational density of states, obtained from inelastic X-ray and neutron scattering, are compared to both ab initio calculations and molecular dynamics simulations. This comparison is used to discuss the impact of structural complexity, as present in complex metallic alloys, on vibrational dynamics and physical properties, like specific heat and thermal conductivity.