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JOURNALS // Journal of Siberian Federal University. Mathematics & Physics // Archive

J. Sib. Fed. Univ. Math. Phys., 2018 Volume 11, Issue 5, Pages 622–626 (Mi jsfu707)

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.

UDC: 538.9

Received: 05.12.2016
Received in revised form: 14.12.2017
Accepted: 20.06.2018

Language: English

DOI: 10.17516/1997-1397-2018-11-5-622-626



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