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The dependences of the specific saturation-magnelization n ( C ) , magnetic grdering lemperature Tc(C), average hyperfine field H(C) and average isomer shift 6(C) on Si concentralion are measured in crystalline Fe-Si alloys disordered by mechanical crushing. I t is shown that topological disordering does not determine the magnetic propenies. The peculiarities found are explained in terms of the local atomic SlNClure parameters depending on the number of Si nearer1 neighbours of an Fe atom.

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