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Article Dans Une Revue Surface Science : A Journal Devoted to the Physics and Chemistry of Interfaces Année : 2021

Stabilization of dense metallic Pb monolayer by decorating step edges with Au atoms on Si(111)

Résumé

Under specific conditions, the sequential growth of Au and Pb on Si(111) results in a huge modification of the surface structure which neither Au/Si nor Pb/Si growths provoke separately. Initially atomically flat 7x7 Si(111) substrate breaks into a terracedhill structure containing up to 10 atomic terraces of a typical width 10-50 nm. Terraces are covered by a dense monolayer of Pb (nominal coverage 1.2 to 1.33 ML); their step edges are decorated by double rows of Au atoms. This could open a route for constructing superconducting Josephson devices on atomic scale.
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Dates et versions

hal-03238376 , version 1 (27-05-2021)

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Jonathan Baptista, Sergio Vlaic, Enrico Cofler, Dimitri Roditchev, Stéphane Pons. Stabilization of dense metallic Pb monolayer by decorating step edges with Au atoms on Si(111). Surface Science : A Journal Devoted to the Physics and Chemistry of Interfaces, 2021, pp.121887. ⟨10.1016/j.susc.2021.121887⟩. ⟨hal-03238376⟩
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