Regensburg 2007 – wissenschaftliches Programm
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DY: Fachverband Dynamik und Statistische Physik
DY 26: Ferrofluids / Liquid crystals
DY 26.3: Vortrag
Donnerstag, 29. März 2007, 11:00–11:15, H3
Structure formation in ferrofluid monolayers-II: Theory. — •Sofia Kantorovich1,3, Joan Cerda2, and Christian Holm2,3 — 1Ural State University, Ekaterinburg, Russia — 2Frankfurt Institute for Advanced Studies, Frankfurt, Germany — 3Max Planck Institute for Polymer Research, Mainz, Germany
Due to specific interactions inherent to single domain ferroparticles in magnetic fluids complex nanostructures might exist in ferrocolloids. Unfortunately the particle size and the optical properties of carrier liquids make the natural studies of the aggregation processes in 3D samples difficult, but it is possible to use cryo-TEM in 2D (in monolayers) [Klokkenburg et al., PRL 97, 185702, (2006)].
Here we present theoretical investigation of the mono- and bi-disperse ferrofluid monolayers. We allow for the probability of chains and rings coexistence in the thermodynamic equilibrium at room temperatures. Predictions obtained via the theoretical density functional approach are extensively compared to simulation data and experimental results of Klokkenburg et al.