Nonequilibrium aging effects in the critical behavior of structurally disordered planar magnets
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Nonequilibrium critical behavior of structurally disordered planar magnets described by the two-dimensional XY model has been studied by Monte Carlo methods. For systems evolving from a high-temperature nonequilibrium initial state, the influence of defects of the structure on aging effects, as well as the violation of the fluctuation-dissipation theorem for “freezing” temperatures in the low-temperature phase, has been analyzed. Power-law temperature dependences of the limiting values of the fluctuation-dissipation ratio have been revealed for the first time.
KeywordsAutocorrelation Function JETP Letter Monte Carlo Step Nonequilibrium Process Spin Concentration
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- 10.V. L. Berezinskii, Low Temperature Properties of Two-Dimensional Systems (Fizmatlit, Moscow, 2007) [in Russian].Google Scholar
- 12.M. Mezard, G. Parisi, and M. Virasoro, Spin-Glass Theory and Beyond (World Scientific, Singapore, 1987).Google Scholar
- 16.Ageing and the Glass Transition, Ed. by M. Henkel, M. Pleimling, and R. Sanctuary, Vol. 716 of Lecture Notes in Physics (Springer, Berlin, Heidelberg, 2007).Google Scholar
- 21.P. V. Prudnikov and I. S. Popov, J. Phys.: Conf. Ser. 510, 1742 (2014).Google Scholar