Cooperative structural effects in relaxation systems of Pd-Er-H and Fe-C

The dynamics of oscillating structural changes in the Fe-C and Pd-Er-H nonequilibrium systems is considered. It is established that for Fe-C the Fourier time dependence spectrum of his Moessbauer spectra is analogous to the Fourier representation of systems in the state of dynamic chaos. The structural-oscillation effects for the Pd-Er-H constitute the totality of oscillatory processes, complying with appearance and partial resorption of the H-D-M complexes, oscillatory changes in the ratio of fractions in the phases rich and poor in erbium and difference in these phases compositions. The oscillations are of multimode character with periods growing in time. Thus, cooperative effects, related to collective interactions of the matrix atoms, defects and perturbation admixtures of the hydrogen and carbon type are obviously observed in the processes considered