6533b7dafe1ef96bd126ea1a
RESEARCH PRODUCT
Global Synchronization via Homogeneous Nucleation in Oscillating Surface Reactions
W. Von NiessenV. N. KuzovkovV. N. KuzovkovO. Kortlükesubject
Surface (mathematics)PhysicsSynchronization (alternating current)Stochastic resonanceQuantum mechanicsPhase (matter)Monte Carlo methodNucleationGeneral Physics and AstronomyCoupling (probability)Molecular physicsNoise (electronics)description
The mechanism leading to globally synchronized oscillations in the $\mathrm{CO}+{\mathrm{O}}_{2}/\mathrm{Pt}\left(110\right)$ reaction system is investigated by means of Monte Carlo simulations. The model considers the reconstruction of the surface via phase border propagation and spontaneous phase nucleation. The reason for global oscillations turns out to be the spontaneous phase nucleation. This nucleation, which is modeled as a weak noise process, results in a random creation of dynamic defects and leads to global synchronization via stochastic resonance. The mechanism of global coupling via the gas phase, as it is proposed to date, does not occur.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-10-11 | Physical Review Letters |