# Kinetics and Nucleation Dynamics in Ion-Seeded Atomic Clusters

Source: [Kinetics and Nucleation Dynamics in Ion-Seeded Atomic Clusters](<https://www.sota2.com/research/paper/68fa411c1e209131ce8f8467>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-25T03:08:06.506Z

Authors: M. G. Rozman, M. Bredice, J. Smucker, H. R. Sadeghpour, D. Vrinceanu, R. Cote, V. Kharchenko

Published: 2021-09-19T15:07:46.000Z

## Abstract

The time-dependent kinetics of formation and evolution of nano-size atomic clusters is investigated and illustrated with the nucleation dynamics of ion-seed Ar$\_n$H$^+$ particles. The rates of growth and degradation of Ar-atomic shells around the seed ion are inferred from Molecular Dynamics (MD) simulations. Simulations of cluster formation have been performed with accurate quantum-mechanical binary interaction potentials. Both the nonequilibrium and equilibrium growth of Ar$\_n$H$^+$ are investigated at different temperature and densities of the atomic gas and seed ions. Formation of Ar$\_{n\\leq 40}$ shells is the main mechanism which regulates the kinetics of nano-cluster growth and the diffusive fluctuations of the cluster size distribution. The time-evolution of the cluster intrinsic energy and cluster size distributions are analyzed at the non-thermal, quasi-equilibrium, and thermal equilibrium stages of Ar$\_n$H$^+$ formation. We've determined the self-consistent model parameters for the temporal fluctuations of the cluster size and found coefficients of the diffusive growth mechanism describing the equilibrium distribution of nano-clusters. Nucleation of haze and nano-dust particles in astrophysical and atmospheric ionized gases are discussed.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/2109.09141>)

[PDF](<https://arxiv.org/pdf/2109.09141.pdf>)