The segregation of Sn in Cu and the formation of a Sn-Cu surface alloy has been studied by Auger electron spectroscopy (AES), reflection high-energy electron diffraction (RHEED) and scanning tunneling microscopy (STM). By annealing Cu(Sn) samples at T=500°C, we have found a Sn0.33Cu0.66 p(√3 × √3)R30° reconstructed surface layer. By increasing T to 750°C, the tin concentration decreases up to 0.20, while the reconstruction is maintained. Atomic-resolution STM images of this phase show no rippling, but several steps. The surface lattice parameters are 0.47±0.02 and 0.51±0.02 nm, respectively, along and across the steps. © 1998 Elsevier Science B.V. All rights reserved.
Contini G., Di Castro V., Motta N., & Sgarlata A. (1998). Formation of a two-dimensional alloy/surface phase: Auger and STM study of Cu(Sn)(111). SURFACE SCIENCE, 405(2009/03/02 00:00:00.000).
Tipologia: | Articolo su rivista |
Citazione: | Contini G., Di Castro V., Motta N., & Sgarlata A. (1998). Formation of a two-dimensional alloy/surface phase: Auger and STM study of Cu(Sn)(111). SURFACE SCIENCE, 405(2009/03/02 00:00:00.000). |
Lingua: | English |
Settore Scientifico Disciplinare: | Settore FIS/03 - Fisica della Materia |
Revisione (peer review): | Sì, ma tipo non specificato |
Tipo: | Articolo |
Rilevanza: | Rilevanza internazionale |
Stato di pubblicazione: | Pubblicato |
Data di pubblicazione: | 1998 |
Titolo: | Formation of a two-dimensional alloy/surface phase: Auger and STM study of Cu(Sn)(111) |
Autori: | |
Autori: | Contini G.; Di Castro V.; Motta N.; Sgarlata A. |
Appare nelle tipologie: | 01 - Articolo su rivista |