Abstract
The propagation of soliton excitations in a system of two magnetic chains with impurities is studied. The inhomogeneous chains coupled through ferromagnetic interaction between the opposite spins are described by a Heisenberg model in the nearest-neighbor approximation. The presence of the impurities leads to linear perturbing terms in the evolutionary equations. We investigated numerically the influence of the soliton parameters, the interchain coupling and the defect strength on the soliton dynamics. The conditions of perfect soliton switching are obtained.
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