It is shown, by molecular-dynamics simulations, that in-channel Au adatom diffusion on missing-row reconstructed Au(110) takes place by two different mechanisms, jumps and metastable walks. In a metastable walk the adatom climbs up one of the (111) facets of the channel, diffuses fast along the network of metastable minima an that facet, and finally is trapped again at the channel bottom. A considerable fraction of the events giving direct mass transport to distant cells occurs by this new mechanism.

Montalenti, F., Ferrando, R. (1998). Competing mechanisms in adatom diffusion on a channeled surface: Jumps versus metastable walks. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 58(7), 3617-3620 [10.1103/PhysRevB.58.3617].

Competing mechanisms in adatom diffusion on a channeled surface: Jumps versus metastable walks

MONTALENTI, FRANCESCO CIMBRO MATTIA;
1998

Abstract

It is shown, by molecular-dynamics simulations, that in-channel Au adatom diffusion on missing-row reconstructed Au(110) takes place by two different mechanisms, jumps and metastable walks. In a metastable walk the adatom climbs up one of the (111) facets of the channel, diffuses fast along the network of metastable minima an that facet, and finally is trapped again at the channel bottom. A considerable fraction of the events giving direct mass transport to distant cells occurs by this new mechanism.
Articolo in rivista - Articolo scientifico
SELF-DIFFUSION; MOLECULAR-DYNAMICS; METALS
English
ago-1998
58
7
3617
3620
none
Montalenti, F., Ferrando, R. (1998). Competing mechanisms in adatom diffusion on a channeled surface: Jumps versus metastable walks. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 58(7), 3617-3620 [10.1103/PhysRevB.58.3617].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/36036
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