A study of the competitive growth model due to random deposition mixed with a small fraction of ballistic deposition

Indrajit Ghose () and Debabrata Ghose
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Indrajit Ghose: S. N. Bose National Science Centre for Basic Sciences, JD Block, Sector III, Salt Lake, Kolkata 700106, India
Debabrata Ghose: Saha Institute of Nuclear Physics, Sector-1, Block-AF, Bidhan Nagar, Kolkata 700064, India

International Journal of Modern Physics C (IJMPC), 2025, vol. 36, issue 05, 1-13

Abstract: We study the scaling properties of a hybrid deposition model that considers random deposition (RD) and ballistic deposition (BD) with next-nearest-neighbor aggregation. The BD occurs with probability p and competes with RD with probability (1−p). It is found that the dynamics of the growing interface follows the same universality class as that of the correlated BD and obeys the generalized scaling ansatz of Family–Vicsek, as proposed by Horowitz and Albano. The deposition process leads to porous structure in the bulk. We have shown that the saturated porosity scales as a power law with the probability of mixing p, which can be described well by extending the scaling arguments as that for the surface.

Keywords: Mixed growth; scaling exponents; porosity; universality class (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1142/S0129183124502188

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