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Studies of non-equilibrium relaxation Heisenberg model with long-range correlations defects
Maria A. Medvedevaab, Pavel V. Prudnikova a Omsk State University,
Mira, 55A, Omsk, 644077, Russia
b Institute of Engineering Physics and Radio Electronics,
Siberian Federal University,
Svobodny, 79, Krasnoyarsk, 660041,
Russia
Abstract:
Monte Carlo simulations of the short-time dynamic behavior are reported for three-dimensional Heisenberg model with long-range correlated disorder at criticality, in the case corresponding to linear defects. Former was carried out both from high-temperature and low-temperature initial states. The static and dynamic critical exponents are determined for systems starting from different initial state. The obtained values of the exponents demonstrated a strong influence of long-range correlated quenched defects on the critical behavior of the systems described by the many-component order parameter.
Keywords:
Monte Carlo methods, disordered systems, short-time dynamic, Heisenberg model, disorder with long-range correlation.
Received: 05.12.2016 Received in revised form: 14.12.2017 Accepted: 20.06.2018
Citation:
Maria A. Medvedeva, Pavel V. Prudnikov, “Studies of non-equilibrium relaxation Heisenberg model with long-range correlations defects”, J. Sib. Fed. Univ. Math. Phys., 11:5 (2018), 622–626
Linking options:
https://www.mathnet.ru/eng/jsfu707 https://www.mathnet.ru/eng/jsfu/v11/i5/p622
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Abstract page: | 141 | Full-text PDF : | 71 | References: | 22 |
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