Journal article
Creation of an atomic superlattice by immersing metallic adatoms in a two-dimensional electron sea.
- Silly F Institut de Physique des Nanostructures, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
- Pivetta M
- Ternes M
- Patthey F
- Pelz JP
- Schneider WD
- 2004-02-03
Published in:
- Physical review letters. - 2004
English
Cerium adatoms, deposited on a Ag(111) surface, are found by low-temperature scanning tunneling microscopy to self-assemble into large ordered hexagonal arrays covering macroscopically the entire surface. We show that the 32 A periodicity of the superlattice is caused by the interaction of surface-state electrons with Ce adatoms and that the large-scale formation of the superlattice is governed by a subtle balance between the sample temperature, the surface diffusion barrier, and the concentration-dependent adatom interaction potential.
- Language
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- English
- Open access status
- closed
- Identifiers
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- DOI 10.1103/PhysRevLett.92.016101
- PMID 14754004
- Persistent URL
- https://sonar.ch/global/documents/25485
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