Crossover between mean-field and Ising critical behavior in a lattice-gas reaction-diffusion model

Abstract

Lattice-gas models for CO oxidation can exhibit a discontinuous nonequilibrium transition between reactive and inactive states, which disappears above a critical CO-desorption rate. Using finite-size-scaling analysis, we demonstrate a crossover from Ising to mean-field behavior at the critical point, with increasing surface mobility of adsorbed CO or with decreasing system size. This behavior is elucidated by analogy with that of equilibrium Ising-type systems with long-range interactions.

arXiv comment6 pages, 3 figures

References in corpus (4)

• Nonequilibrium Critical Phenomena and Phase Transitions into Absorbing States
• Driven Diffusive Systems: An Introduction and Recent Developments
• Medium-range interactions and crossover to classical critical behavior
• Crossover scaling in two dimensions

Cited by in corpus (5)

• Universal scaling behavior of non-equilibrium phase transitions
• Monte Carlo Simulations of the Critical Properties of a Ziff-Gulari-Barshad model of Catalytic CO Oxidation with Long-range Reactivity
• A model for the catalytic oxidation of CO that includes CO desorption and diffusion, O repulsion, and impurities in the gas phase
• Scaling behavior of the directed percolation universality class
• Barrier-Controlled Non-Equilibrium Criticality in Reactive Particle Systems