Monte Carlo simulations of the L10 long-range order relaxation in dimensionally reduced systems

TL;DR

This study uses Monte Carlo simulations to explore how the L10 long-range order relaxes in thin film systems, revealing that film thickness significantly affects vacancy migration energies and aligning with experimental findings.

Contribution

It provides new insights into the relaxation kinetics of L10 order in reduced dimensions, emphasizing the impact of film thickness and interaction energies.

Findings

Migration energy increases as film thickness decreases.

Simulation results agree with experimental data.

Relaxation kinetics depend on layer number and pair interactions.

Abstract

Monte Carlo simulations have been performed to investigate the relaxation of the L10 long-range order in dimensionally reduced systems. The effect of the number of (001)-type monatomic layers and of the pair interaction energies on these kinetics has been examined. The vacancy migration energies have been deduced from the Arrhenius plots of the relaxation times. A substantial increase in the migration energy for small film thickness is observed. The results agree with previous Monte Carlo simulations and with recent experimental results in L1_0 thin films and multilayers.