Comment on Surface diffusion near the points corresponding to continuous phase transitions

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© 1999 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. http://scitation.aip.org/content/aip/journal/jcp
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Journal Title

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Volume Title

School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

1999

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Mcode

Degree programme

Language

en

Pages

11232-11233

Series

The Journal of Chemical Physics, Volume 111, Issue 24

Abstract

It is well known that unlike static equilibrium properties, kinetic quantities in Monte Carlo simulations are very sensitive to the details of the algorithm used for the microscopic transition rates. This is particularly true near the critical region where fluctuations are pronounced. We demonstrate that when diffusion of oxygen adatoms near the order–disorder transition of a lattice-gas model of the O/W(110) model system is studied, the transition rates must be chosen carefully. In particular, we show that the choice by Uebing and Zhdanov [J. Chem. Phys. 109, 3197 (1998)] is inappropriate for the study of critical effects in diffusion.

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Keywords

diffusion, Monte Carlo methods, quantum phase transitions, static properties

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Citation

Vattulainen, I. & Ying, S. C. & Ala-Nissilä, Tapio & Merikoski, J. 1999. Comment on Surface diffusion near the points corresponding to continuous phase transitions. The Journal of Chemical Physics. Volume 111, Issue 24. P. 11232-11233. ISSN 1089-7690 (electronic). ISSN 0021-9606 (printed). DOI: 10.1063/1.480479.