Non-equilibrium critical behavior of thin Ising films

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:440

Article; Proceedings Paper

Medvedeva, Maria A.¹  Prudnikov, Pavel V.²  Elin, Alexey S.² 

[1] Siberian Fed Univ, Dept Theoret Phys & Wave Phenomena, Krasnoyarsk 660041, Russia

[2] Omsk State Univ, Dept Theoret Phys, Omsk 644077, Russia

关键词: Thin film;    Non-equilibrium critical behavior;    Aging effects;    Monte-Carlo simulation;   

DOI  :  10.1016/j.jmmm.2016.12.094

来源: Elsevier

【 摘 要 】

In this paper we study the non-equilibrium properties of Ising ferromagnetic films using Monte Carlo simulations by short-time dynamic method. We have found thickness dependency of critical exponents z, theta' and beta/nu. Ageing effects were observed in non-equilibrium critical behavior. Former was carried out both from high-temperature and low-temperature initial states. A characteristic time of relaxation, which diverges at a transition temperature in the thermodynamic limit, is obtained as a function of the system size and waiting time.

【 授权许可】

Free