# Monte Carlo simulation of subsurface ordering kinetics in an fcc-alloy model

Source: [Monte Carlo simulation of subsurface ordering kinetics in an fcc-alloy model](<https://www.sota2.com/research/paper/68fa25562c2a3760193af2d7>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T10:38:53.977Z

Authors: Michael Kessler, Wolfgang Dieterich, Andrzej Majhofer

Published: 2001-03-13T11:48:17.000Z

## Abstract

Within the atom-vacancy exchange mechanism in a nearest-neighbor interaction model we investigate the kinetics of surface-induced ordering processes close to the (001) surface of an fcc A\_3B-alloy. After a sudden quench into the ordered phase with a final temperature above the ordering spinodal, T\_f \> T\_sp, the early time kinetics is dominated by a segregation front which propagates into the bulk with nearly constant velocity. Below the spinodal, T\_f \< T\_sp, motion of the segregation wave reflects a coarsening process which appears to be slower than predicted by the Lifschitz-Allen-Cahn law. In addition, in the front-penetrated region lateral growth differs distinctly from perpendicular growth, as a result of the special structure of antiphase boundaries near the surface. Our results are compared with recent experiments on the subsurface ordering kinetics at Cu\_3Au (001).

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/cond-mat/0103271>)

[PDF](<https://arxiv.org/pdf/cond-mat/0103271.pdf>)