Room-temperature self-assembly of equilateral triangular clusters via Friedel oscillations

Room-temperature self-assembly of equilateral triangular clusters via Friedel oscillations

We report on the formation of equilateral triangular clusters hollow inside with 5-6 atoms per side, self-assembled on Ni adislands grown on Rh(111). The observation of standing wave patterns on the Ni adislands and the Rh(111) indicates that the self-assembly is mediated by Friedel oscillations. In...

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Veröffentlicht in:Physical review letters 2008-10, Vol.101 (16), p.165701-165701, Article 165701
Hauptverfasser: Manai, G, Radican, K, Delogu, F, Shvets, I V
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creator Manai, G
Radican, K
Delogu, F
Shvets, I V
description We report on the formation of equilateral triangular clusters hollow inside with 5-6 atoms per side, self-assembled on Ni adislands grown on Rh(111). The observation of standing wave patterns on the Ni adislands and the Rh(111) indicates that the self-assembly is mediated by Friedel oscillations. In this context, we propose a model based on the energy of interaction between adsorbates, which explains the formation of the clusters as a result of the assembly of rows of 5-6 adatoms.
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title Room-temperature self-assembly of equilateral triangular clusters via Friedel oscillations
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