Regensburg 2010 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 37: Poster: Colloids and Complex Liquids

CPP 37.7: Poster

Wednesday, March 24, 2010, 17:30–19:00, Poster B2

A new experimental setup for microscopic studies of confined colloids in quasi-2d — •Alexander Reinmüller, Thomas Palberg, and Hans Joachim Schöpe — Institut für Physik der Universität Mainz, Staudingerweg 7, D-55099 Mainz, Germany

Both equilibrium and non-equilibrium behaviour of confined many particle systems is of great scientific interest. To investigate confined colloidal model systems we constructed a new experimental high-precision setup. The confinement consisting basically of flat quartz plates can be adjusted precisely by use of special Piezo drives allowing a variable plate to plate distance (contact - 100 micrometers) and the application of compression and shear forces. The experimental setup is designed for observations using common optical scientific microscopes. The goal of our experiments is the investigation of the phase behaviour of mono-disperse and bi-disperse Yukawa systems as well as their non-equilibrium behaviour. We present the new setup as well as first interesting results of fully deionized charged spheres in confinement.