paper

Nonequilibrium Critical Dynamics of a Three Species Monomer-Monomer Model

arXiv:cond-mat/9609191 · doi:10.1103/PhysRevLett.77.4094

Abstract

We study a three species monomer-monomer catalytic surface reaction model with a reactive steady state bordered by three equivalent unreactive phases where the surface is saturated with one species. The transition from the reactive to a saturated phase shows directed percolation critical behavior. Each pair of these reactive-saturated phase boundaries join at a bicritical point where the universal behavior is in the even branching annihilating random walk class. We find the crossover exponent from bicritical to critical behavior and a new exponent associated with the bicritical interface dynamics.

4 pages RevTex. 4 eps figures included with psfig.sty. Uses multicol.sty. Accepted for publication in PRL

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