Deposition of magnetic particles: A computer simulation study

Details Deposition of magnetic particles: A computer simulation study Deposition of magnetic particles: A computer simulation study

2003-01-10

arxiv.org/abs/cond-mat/0301150v1

Physics

Condensed Matter

To appear in Journal of Physics: Condensed Matter Special Issue on Magnetic Fluids

Scientific paper

10.1088/0953-8984/15/15/301

We report a Monte Carlo simulation of deposition of magnetic particles on a one-dimensional substrate. Incoming particles interact with those that are already part of the deposit via a dipole-dipole potential. The strength of the dipolar interaction is controlled by an effective temperature $T^*$, the case of pure diffusion-limited deposition being recovered in the limit $T^*\to\infty$. Preliminary results suggest that the fractal dimension of the deposits does not change with temperature but that there is a (temperature-dependent) cross-over from regimes of temperature-dependent to universal behaviour. Furthermore, it was found that dipoles tend to align with the local direction of growth.

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