Abstract
AbstractA binary ferromagnetic alloy, in which the magnetic moments depend on their local chemical environment in a step‐like manner (the Jaccarino‐Walker model), is considered. It is assumed that Heisenberg exchange interactions of the nearest neighbours are responsible for the ferromagnetic ordering of these magnetic moments. Both, the Curie temperatures versus concentration and the percolation thresholds of the existence of the long‐range magnetic order are investigated for different variants of dependences of both the magnetic components on their local environments. The spin‐wave spectrum is analyzed as well.
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