The (110) surface of the disordered Pt25Co75 alloy: a sandwich of almost pure monoatomic layers
| Autor: | E.K. Hill, R. Baudoing-Savois, Y. Gauthier, J.M. Bugnard |
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| Přispěvatelé: | Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire de Spectrométrie Physique (LSP), Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 1993 |
| Předmět: |
Monatomic gas
Annealing (metallurgy) Alloy chemistry.chemical_element Mineralogy 02 engineering and technology engineering.material 01 natural sciences 0103 physical sciences Monolayer Materials Chemistry Surface structure 010306 general physics ComputingMilieux_MISCELLANEOUS Argon Condensed matter physics Chemistry Oscillation Surfaces and Interfaces 021001 nanoscience & nanotechnology Condensed Matter Physics Surfaces Coatings and Films engineering [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] 0210 nano-technology Cobalt |
| Zdroj: | Surface Science Surface Science, Elsevier, 1993, 281 (1-2), pp.62-73. ⟨10.1016/0039-6028(93)90855-E⟩ Surface Science : A Journal Devoted to the Physics and Chemistry of Interfaces Surface Science : A Journal Devoted to the Physics and Chemistry of Interfaces, 1993, 281 (1-2), pp.62-73. ⟨10.1016/0039-6028(93)90855-E⟩ |
| ISSN: | 0039-6028 1879-2758 |
| DOI: | 10.1016/0039-6028(93)90855-E⟩ |
| Popis: | The (110) surface structure of the Pt25Co75 alloy in the substitutionally disordered state was studied by quantitative LEED. In a way similar to PtxNi1−x(110) surfaces, on the Ni rich side, the composition profile versus depth is strongly oscillating with a pure cobalt top layer; however, the oscillation is stronger and goes deeper for Pt25Co75(110) than for the previously studied surfaces of Pt10Ni90(110) and Pt50Ni50(110). Actually the selvedge, which can be easily produced by simple standard argon cleaning and annealing UHV techniques, is a sequence of three almost pure layers: CoPtCo. This provides an interesting system to be studied: the monolayer limit of PtCo sandwiches. |
| Databáze: | OpenAIRE |
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