Formation of Argon Cluster with Proton Seeding
| Autor: | V. Kharchenk, Hossein Sadeghpour, Daniel Vrinceanu, O. C. F. Brown |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Proton Biophysics Nucleation Evaporation chemistry.chemical_element FOS: Physical sciences Condensed Matter - Soft Condensed Matter 010402 general chemistry 7. Clean energy 01 natural sciences Ion Molecular dynamics Physics - Chemical Physics 0103 physical sciences Cluster (physics) Physics::Atomic and Molecular Clusters Physical and Theoretical Chemistry Molecular Biology Chemical Physics (physics.chem-ph) Argon 010304 chemical physics Condensed Matter Physics 0104 chemical sciences chemistry Chemical physics Soft Condensed Matter (cond-mat.soft) Seeding |
| DOI: | 10.48550/arxiv.2008.04211 |
| Popis: | We employ force-field molecular dynamics simulations to investigate the kinetics of nucleation to new liquid or solid phases in a dense gas of particles, seeded with ions. We use precise atomic pair interactions, with physically correct long-range behavior, between argon atoms and protons. Time-dependence of molecular cluster formation is analyzed at different proton concentration, temperature and argon gas density. The modified phase transitions with proton seeding of the argon gas are identified and analyzed. The seeding of the gas enhances the formation of nano-size atomic clusters and their aggregation. The strong attraction between protons and bath gas atoms stabilizes large nano-clusters and the critical temperature for evaporation. An analytical model is proposed to describe the stability of argon-proton droplets, and is compared with the molecular dynamics simulations. Comment: 10 pages, 6 figures |
| Databáze: | OpenAIRE |
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