Dresden 2009 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 12: POSTERS Magnetic Soft Matter

CPP 12.11: Poster

Dienstag, 24. März 2009, 14:00–16:30, P3

Structure factor of the ferrofluid with chain aggregates. — •Elena Pyanzina1, Sofia Kantorovich1,2, Juan Cerda2, and Christian Holm21Ural State University, Ekaterinburg, Russia — 2University of Stuttgart, Stuttgart, Germany

We analyze the structure factor of a ferrofluid with strong interparticle magnetic dipole-dipole interaction. Results on bidisperse model systems in the absence of an external magnetic field are presented. The theoretical calculations are based on the explicit construction of radial distribution functions from the chain distributions obtained via density functional minimization. Data obtained via molecular dynamics simulations for the same model are provided for the verification of our analytical calculations. The results of our study are compared to the experimental data from [L.M. Pop, S. Odenbach, J. Phys.: Cond. Mat. (2006)].

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