Order-Disorder Transition in 2D Conserved Spin System with Cooperative Dynamics

• Authors: K. Hałagan , P. Polanowski
• Languages of publication: EN

Abstracts

EN

In this work Monte Carlo simulations with usage of dynamic lattice liquid model are presented, instead of the widely used direct exchange or vacancy dynamics, to investigate the dynamics of phase separation phenomenon in spin conserved system with all lattice sites occupied. The dynamic behaviour of domain growth and particle diffusion is discussed for the modified conserved order parameter Ising model. The dynamic lattice liquid model dynamics enables non-locally correlated relaxation dynamics and allows to simulate dense systems in absence of vacancies and parallel treatment of all spins. This approach involves cooperative movement of system elements enabling observation of the order-disorder phase transition in a system with highly correlated motions. Simulations were performed on 2D triangular lattice for several investigated temperatures. Presented results include temporal evolution of domain morphology and diffusion of system elements.

Keywords

EN

64.60.De; 05.40.Jc; 64.60.Cn

Discipline

• 64.60.De: Statistical mechanics of model systems (Ising model, Potts model, field-theory models, Monte Carlo techniques, etc.)
• 05.40.Jc: Brownian motion
• 64.60.Cn: Order-disorder transformations(see also 81.30.Hd Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder in materials science; for effects of disorder on superconducting transition temperature, see 74.62.En)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 2
• Pages: 585-587

Dates

published

2015-02

Contributors

author

K. Hałagan

• Department of Molecular Physics, Łódź University of Technology, S. Żeromskiego 116, 90-924 Łódź, Poland

author

P. Polanowski

• Department of Molecular Physics, Łódź University of Technology, S. Żeromskiego 116, 90-924 Łódź, Poland

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Identifiers

DOI

10.12693/APhysPolA.127.585