Berlin 2014 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 1: Dusty Plasmas I

P 1.1: Hauptvortrag

Montag, 17. März 2014, 10:30–11:00, SPA HS201

Complex Plasmas: Particle-resolved Studies of Classical Liquids and Solids — •Alexei Ivlev — Max-Planck-Institut fuer extraterrestrische Physik, 85741 Garching, Germany

Many fundamental issues in classical condensed matter physics can be addressed experimentally using systems of individually visible mesoscopic particles playing the role of "proxy atoms". The interaction between such "atoms" is determined by the properties of the surrounding medium and/or by external tuning. Complex plasmas, representing the plasma state of soft matter, are one of the best-known examples of such experimental model systems.

In my talk I will illustrate remarkable properties of strongly-coupled complex plasmas by discussing melting transitions in plasma crystals. Results of particle-resolved studies of equilibrium and non-equilibrium melting regimes will be presented, allowing us to identify generic processes accompanying liquid-solid phase transitions. In addition, plasma-specific melting mechanisms (i.e., those operating only in complex plasmas) will be also discussed.