Energetics and many-particle mechanisms of two-dimensional cluster diffusion on Cu(100) surfaces
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© 2000 American Physical Society (APS). http://www.aps.org
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School of Science |
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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2000
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en
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1611-1614
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Physical Review B, Volume 62, Issue 3
Abstract
We study the energetics and stability of small Cu clusters on Cu(100) surfaces using molecular statics combined with systematic saddle-point search methods. We find several previously overlooked concerted many-particle processes that play an important role in cluster energetics. In particular, for smaller clusters there is an internal atom row shear mechanism that in some cases determines the rate-limiting step for center-of-mass motion. Our results suggest specific reaction paths for experimentally observed cluster diffusion events.Description
Keywords
surfaces, diffusion, energetics, stability
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Citation
Trushin, O. S. & Salo, P. & Ala-Nissilä, Tapio. 2000. Energetics and many-particle mechanisms of two-dimensional cluster diffusion on Cu(100) surfaces. Physical Review B. Volume 62, Issue 3. P. 1611-1614. ISSN 1098-0121 (printed). DOI: 10.1103/physrevb.62.1611.