Self-organized molecular-sized, hexagonally ordered SnOx nanodot superlattices on Pt(111)

Matthias Batzill; David E. Beck; Bruce E. Koel

doi:10.1063/1.1369613

Self-organized molecular-sized, hexagonally ordered SnO_x nanodot superlattices on Pt(111)

Matthias Batzill, David E. Beck, Bruce E. Koel

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

Complete oxidation of the -( _v3 × _v3)R30° Sn/Pt(111) surface alloy or submonolayer amounts of Sn adatoms on Pt(111) under ultrahigh vacuum conditions, forms a highly ordered, lateral superlattice of SnO_x islands on the Pt(111) substrate. The island superstructure exhibits a sharp (5×5) low energy electron diffraction pattern. Scanning tunneling microscopy images show islands arranged in a hexagonal lattice, uniformly distributed over the whole sample. This island array is thermally stable up to 1050 K. The coincidence of the island periodicity with a multiple of the supporting substrate, and the same hexagonal symmetry of islands and substrate, suggests a strong island-substrate interaction. We propose that the island formation results from the breakup of a strained SnO_x adlayer.

Original language	English (US)
Pages (from-to)	2766-2768
Number of pages	3
Journal	Applied Physics Letters
Volume	78
Issue number	18
DOIs	https://doi.org/10.1063/1.1369613
State	Published - Apr 30 2001
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.1369613

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abstract = "Complete oxidation of the -( v3 × v3)R30° Sn/Pt(111) surface alloy or submonolayer amounts of Sn adatoms on Pt(111) under ultrahigh vacuum conditions, forms a highly ordered, lateral superlattice of SnOx islands on the Pt(111) substrate. The island superstructure exhibits a sharp (5×5) low energy electron diffraction pattern. Scanning tunneling microscopy images show islands arranged in a hexagonal lattice, uniformly distributed over the whole sample. This island array is thermally stable up to 1050 K. The coincidence of the island periodicity with a multiple of the supporting substrate, and the same hexagonal symmetry of islands and substrate, suggests a strong island-substrate interaction. We propose that the island formation results from the breakup of a strained SnOx adlayer.",

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AU - Batzill, Matthias

AU - Beck, David E.

AU - Koel, Bruce E.

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AB - Complete oxidation of the -( v3 × v3)R30° Sn/Pt(111) surface alloy or submonolayer amounts of Sn adatoms on Pt(111) under ultrahigh vacuum conditions, forms a highly ordered, lateral superlattice of SnOx islands on the Pt(111) substrate. The island superstructure exhibits a sharp (5×5) low energy electron diffraction pattern. Scanning tunneling microscopy images show islands arranged in a hexagonal lattice, uniformly distributed over the whole sample. This island array is thermally stable up to 1050 K. The coincidence of the island periodicity with a multiple of the supporting substrate, and the same hexagonal symmetry of islands and substrate, suggests a strong island-substrate interaction. We propose that the island formation results from the breakup of a strained SnOx adlayer.

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Self-organized molecular-sized, hexagonally ordered SnO_x nanodot superlattices on Pt(111)

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