Abstract
In the present paper, a variation of the widespread model of diffusion-limited aggregation (DLA) is presented. Unlike the traditional DLA model, where particles are attached to the aggregate whenever they touch it, we here restrict attachment by reducing the number of available bonds of the particles. This subtle change in the model changes the topological properties of the resulting aggregate. By using a binary mixture of particles, with different coordination number, the fractal dimension (df), the spectral dimension (ds) and the random walk dimension (dw) are studied as a function of particle-type ratio. The behavior of the system shows non-negligible deviation from the traditional model.
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