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Regensburg 2010 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 36: Poster: Nanoparticles and Composite Materials

CPP 36.20: Poster

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

The influence of particle size distribution on the groundstate structures in ferrofluid monolayers — •Victor Danilov1, Taisia Prokopieva1, Sofia Kantorovich1,2, and Christian Holm21Ural State University, Ekaterinburg, Russia — 2ICP, University of Stuttgart, Stuttgart, Germany

The study of ground state structures in magnetic fluids is of fundamental interest, as it provides the insight into the complex microstructer of the systems.

The analysis of the microstructure of ferrofluid monolayers at low temperatures with single defect particle, which we have carried out recently, is now extended to the generic bidisperse system. Earlier we showed that a single large defect tends to align "regular" particles along its magnetic field lines, the critical parameters at which the transition from a single ferroparticle ring into a complex structure occurs were found. The dependence of the system ground state structures on the number and size of numerous defects are studied by using of Monte Carlo simulations technique in combination with analytical approach and compared to the case of a single defect.

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