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research article
Melting of Two-Dimensional Adatom Superlattices Stabilized by Long-Range Electronic Interactions
The melting transition of Ce adatom superlattices stabilized by long-range substrate-mediated electronic interactions on Cu(111) and Ag(111) noble metal surfaces has been investigated by low-temperature scanning tunneling microscopy, density functional theory calculations, and kinetic Monte Carlo simulations. Intriguingly, owing to the interaction between Ce adatoms and substrate, these superlattices undergo two-dimensional melting to a liquid without transition through the hexatic phase. The crucial parameters for this direct solid to liquid transition are identified.
Type
research article
Web of Science ID
WOS:000267197900050
Authors
Negulyaev, N. N.
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Stepanyuk, V. S.
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Niebergall, L.
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Bruno, P.
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•
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Schneider, W.-D.
Publication date
2009
Published in
Volume
102
Article Number
246102
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
November 30, 2010
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