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Diffusion of Adatoms and Small Clusters on Missing-Row-Reconstructed Surfaces

Montalenti, F. / Ferrando, R.

Abstract The mobility of adatom, dimers, and atomic chains on missing-row reconstructed surfaces is investigated by molecular-dynamics simulations and analytical calculations. Results are reported for Au(110). In the case of adatoms, diffusion can take place either by in-channel jumps or by walks on the channel facets (metastable walks). In the case of dimers and chains, the dominant mechanism is the leapfrog, in which one of the side adatoms of the chain is promoted above the chain itself, diffuses there until it is retrapped at the opposite end of the chain.

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Diffusion of Adatoms and Small Clusters on Missing-Row-Reconstructed Surfaces

Montalenti, F. / Ferrando, R.

Abstract The mobility of adatom, dimers, and atomic chains on missing-row reconstructed surfaces is investigated by molecular-dynamics simulations and analytical calculations. Results are reported for Au(110). In the case of adatoms, diffusion can take place either by in-channel jumps or by walks on the channel facets (metastable walks). In the case of dimers and chains, the dominant mechanism is the leapfrog, in which one of the side adatoms of the chain is promoted above the chain itself, diffuses there until it is retrapped at the opposite end of the chain.

Diffusion of Adatoms and Small Clusters on Missing-Row-Reconstructed Surfaces

Montalenti, F. / Ferrando, R.

Abstract The mobility of adatom, dimers, and atomic chains on missing-row reconstructed surfaces is investigated by molecular-dynamics simulations and analytical calculations. Results are reported for Au(110). In the case of adatoms, diffusion can take place either by in-channel jumps or by walks on the channel facets (metastable walks). In the case of dimers and chains, the dominant mechanism is the leapfrog, in which one of the side adatoms of the chain is promoted above the chain itself, diffuses there until it is retrapped at the opposite end of the chain.

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Titel:

Diffusion of Adatoms and Small Clusters on Missing-Row-Reconstructed Surfaces

Beteiligte:

Montalenti, F. (Autor:in) / Ferrando, R. (Autor:in)

Erschienen in:

Collective Diffusion on Surfaces: Correlation Effects and Adatom Interactions ; 237-245

NATO Science Series II: Mathematics, Physics and Chemistry ; 29

Erscheinungsdatum:

01.01.2001

Format / Umfang:

9 pages

ISBN:

978-0-7923-7116-8 , 978-94-010-0816-7

ISSN:

DOI:

https://doi.org/10.1007/978-94-010-0816-7_21

Medientyp:

Aufsatz/Kapitel (Buch)

Format:

Elektronische Ressource

Sprache:

Englisch

Schlagwörter:

Effective Barrier , Channel Bottom , Multiple Promotion , Adatom Diffusion , Chain Diffusion Physics , Condensed Matter Physics , Surfaces and Interfaces, Thin Films

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