Nichtlineare Antwort in stark heterogenen glasbildenden Mischungen und Ionenleitern

• Antragsteller: Professor Dr. Thomas Franosch; Professor Dr. Jürgen Horbach
• Fachliche Zuordnung: Statistische Physik, Nichtlineare Dynamik, Komplexe Systeme, Weiche und fluide Materie, Biologische Physik
• Förderung: Förderung von 2010 bis 2018
• Projektkennung: Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 157463299

The mass transport in strongly heterogeneous mixtures and the disordered Lorentz model is studied using non-equilibrium molecular dynamics simulations, mode-coupling theory, and scaling theory approaches. By investigating the non-linear response to external fields, we aim at revealing the fundamental microscopic processes responsible for anomalous diffusion in such systems, and to understand the connection between fast-ion-conduct ing glass-forming melts, purely entropic binary-mixture model systems, and the Lorentz gas on a theoretical basis. Both the dynamics of the mobile (tracer) particles and that of the slow particle species are considered. In particular, we address the role of collectivity in fast-ion transport and the role of correlations in the heterogeneous glass-forming matrix.

• DFG-Verfahren: Forschungsgruppen
• Teilprojekt zu: FOR 1394: Nonlinear response to probe vitrification
• Internationaler Bezug: Großbritannien, Österreich
• Beteiligte Person: Professor Roel Dullens, Ph.D.