dc.creator | Légaré, P. | |
dc.creator | Castellani, Norberto Jorge | |
dc.creator | Cabeza, Gabriela Fernanda | |
dc.date.accessioned | 2019-03-26T15:51:36Z | |
dc.date.accessioned | 2022-10-15T13:55:29Z | |
dc.date.available | 2019-03-26T15:51:36Z | |
dc.date.available | 2022-10-15T13:55:29Z | |
dc.date.created | 2019-03-26T15:51:36Z | |
dc.date.issued | 2002-01 | |
dc.identifier | Légaré, P.; Castellani, Norberto Jorge; Cabeza, Gabriela Fernanda; Adhesion of metal on metal. The Pt on Co case; Elsevier Science; Surface Science; 496; 3; 1-2002; 51-54 | |
dc.identifier | 0039-6028 | |
dc.identifier | http://hdl.handle.net/11336/72542 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/4393850 | |
dc.description.abstract | The adhesion of Pt overlayers in pseudomorphic epitaxy on hcp Co(0 0 0 1) and fcc Co(1 0 0) was investigated with first-principles calculations. This was compared to the adhesion of the Pt surface layers on Pt(1 1 1) and Pt(1 0 0). We show that adhesion can be analyzed by taking into account the interplay between the chemical and structural properties at the interface. The free Pt planes with the bulk Pt-Pt distance are submitted to tensile stress which can be relaxed by 6.6% and 9.1% contraction for the (1 1 1) and (1 0 0) symmetries respectively. This results in equilibrium interatomic distances which are not far from that of the Co substrate. Consequently the stress energy in a pseudomorphic Pt monolayer on a Co substrate is lower than the stress energy of pure Pt(1 1 1) or Pt(1 0 0) surfaces. However, this is at the expense of the Pt chemical reactivity towards the Co substrate. This is in agreement with the general dependence between chemical reactivity and stress of a metal surface. © 2001 Elsevier Science B.V. All rights reserved. | |
dc.language | eng | |
dc.publisher | Elsevier Science | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0039602801016119 | |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/S0039-6028(01)01611-9 | |
dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/restrictedAccess | |
dc.subject | ADHESION | |
dc.subject | COBALT | |
dc.subject | DENSITY FUNCTIONAL CALCULATIONS | |
dc.subject | EPITAXY | |
dc.subject | LOW INDEX SINGLE CRYSTAL SURFACES | |
dc.subject | PLATINUM | |
dc.subject | SURFACE STRESS | |
dc.title | Adhesion of metal on metal. The Pt on Co case | |
dc.type | info:eu-repo/semantics/article | |
dc.type | info:ar-repo/semantics/artículo | |
dc.type | info:eu-repo/semantics/publishedVersion | |