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JETP Letters

, Volume 101, Issue 8, pp 539–544 | Cite as

Nonequilibrium aging effects in the critical behavior of structurally disordered planar magnets

  • P. V. PrudnikovEmail author
  • V. V. Prudnikov
  • I. S. Popov
Condensed Matter

Abstract

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.

Keywords

Autocorrelation Function JETP Letter Monte Carlo Step Nonequilibrium Process Spin Concentration 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Pleiades Publishing, Inc. 2015

Authors and Affiliations

  • P. V. Prudnikov
    • 1
    Email author
  • V. V. Prudnikov
    • 1
  • I. S. Popov
    • 1
  1. 1.Omsk State UniversityOmskRussia

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