DAMAGE SPREADING IN NON-FRUSTRATED PHASE OF A TRIANGULAR ANTIFERROMAGNET

We investigate a first-order phase transition from a non-magnetic phas e to a non-frustrated phase of a two-dimensional triangular lattice wi th antiferromagnetic bonds. A cellular automaton is defined, which cho oses a magnetic state of subsequent lattice sites, where an interphase boundary arrives, as to minimise the local energy. The ground state m agnetic state is found to be unstable with respect to the point defect s of magnetic structure.