Superaging and Subaging Phenomena in a Nonequilibrium Critical Behavior of the Structurally Disordered Two-Dimensional XY Model Full article
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Journal of Experimental and Theoretical Physics
ISSN: 1063-7761 , E-ISSN: 1090-6509 |
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| Output data | Year: 2018, Volume: 126, Number: 3, Pages: 368-382 Pages count : 15 DOI: 10.1134/s1063776118020140 | ||
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| Affiliations |
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Funding (2)
| 1 | Russian Foundation for Basic Research | 17-12-00279 |
| 2 | Совет по грантам Президента РФ | МД-6868.2018.2 |
Abstract:
A Monte Carlo numerical simulation of the specific features of nonequilibrium critical behavior is carried out for the two-dimensional structurally disordered XY model during its evolution from a low-temperature initial state. On the basis of the analysis of the two-time dependence of autocorrelation functions and dynamic susceptibility for systems with spin concentrations of p = 1.0, 0.9, and 0.6, aging phenomena characterized by a slowing down of the relaxation system with increasing waiting time and the violation of the fluctuation–dissipation theorem (FDT) are revealed. The values of the universal limiting fluctuation–dissipation ratio (FDR) are obtained for the systems considered. As a result of the analysis of the two-time scaling dependence for spin–spin and connected spin autocorrelation functions, it is found that structural defects lead to subaging phenomena in the behavior of the spin–spin autocorrelation function and superaging phenomena in the behavior of the connected spin autocorrelation function.
Cite:
Prudnikov V.V.
, Prudnikov P.V.
, Popov I.S.
Superaging and Subaging Phenomena in a Nonequilibrium Critical Behavior of the Structurally Disordered Two-Dimensional XY Model
Journal of Experimental and Theoretical Physics. 2018. V.126. N3. P.368-382. DOI: 10.1134/s1063776118020140 Scopus РИНЦ OpenAlex
Superaging and Subaging Phenomena in a Nonequilibrium Critical Behavior of the Structurally Disordered Two-Dimensional XY Model
Journal of Experimental and Theoretical Physics. 2018. V.126. N3. P.368-382. DOI: 10.1134/s1063776118020140 Scopus РИНЦ OpenAlex
Original:
Прудников В.В.
, Прудников П.В.
, Попов И.С.
Эффекты сверхстарения и субстарения в неравновесном критическом поведении структурно-неупорядоченной двумерной XY-модели
Журнал экспериментальной и теоретической физики. 2018. Т.153. №3. С.442-457. DOI: 10.7868/s0044451018030100 РИНЦ OpenAlex
Эффекты сверхстарения и субстарения в неравновесном критическом поведении структурно-неупорядоченной двумерной XY-модели
Журнал экспериментальной и теоретической физики. 2018. Т.153. №3. С.442-457. DOI: 10.7868/s0044451018030100 РИНЦ OpenAlex
Dates:
| Submitted: | Aug 2, 2017 |
Identifiers:
| Scopus: | 2-s2.0-85045508702 |
| Elibrary: | 35519508 |
| OpenAlex: | W2797405572 |