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Berlin 2012 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 16: Poster: Colloids and Complex Liquids

CPP 16.35: Poster

Tuesday, March 27, 2012, 18:15–20:45, Poster A

Structure factor of model polydisperse ferrofluids with relatively weak interparticle interactions — •Ekaterina Krutikova1, Sofia Kantorovich1,2, and Alexey Ivanov11Ural Federal University, Lenin av 51, 620083, Ekaterinburg, Russia — 2Institute for Computational Physics, Pfaffenwaldring 27, 70569 Stuttgart

Scattering measurements allow to obtain the so-called structure factor, which is, actually, the Fourier transform of the pair correlation function of the ferroparticle system. Thus, for correct processing of experimental data it is necessary to develop the theoretical model for the pair correlation function and structure factor. Here, we present a theory based on the diagram expansion of the pair particle potential, and molecular dynamics simulations for various polydisperse systems, and analyse the behaviour of the first peak of the structure factor, namely its height and width as a function of the ferrofluid granulometric composition.

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