dc.contributorVagner Eustaquio de Carvalho
dc.contributorEdmar Avellar Soares
dc.contributorAndre Santarosa Ferlauto
dc.contributorMario Luiz Viana Alvarenga
dc.creatorDiogo Duarte dos Reis
dc.date.accessioned2019-08-13T23:20:46Z
dc.date.accessioned2022-10-04T01:06:06Z
dc.date.available2019-08-13T23:20:46Z
dc.date.available2022-10-04T01:06:06Z
dc.date.created2019-08-13T23:20:46Z
dc.date.issued2010-03-12
dc.identifierhttp://hdl.handle.net/1843/IACO-84RRPD
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3838781
dc.description.abstractIn this work, we present the results of the atomic geometry determination of the clean Au(110)-(1x2) surface and with the adsorption of antimony by Low Energy Electron Diffraction (LEED). The Au(110)-(1x2) clean surface presents a reconstruction called missing row, which consists of an alternated removed atomic rows of the surface. In our LEED analysis, we found a large relaxation of the first layer, and a buckling in the third and fifth layers and also a pairing of atomic rows in the second and fourth layers, confforming the results found in the literature. For the system Au(110)-c(2x2)Sb we found that the surface rearranges in the structure (1x1) with antimony atoms occupying highly simetrical hollow sites, forming an overlayer over the Au(110)-(1x1) surface. These results dier from results of the literature, in which the Sb atoms occupy substitutionals sites in the rst layer forming a surface alloy. Our results are in very good agreement with recently performed ab initio calculations (DFT).
dc.publisherUniversidade Federal de Minas Gerais
dc.publisherUFMG
dc.rightsAcesso Aberto
dc.subjectEspalhamento
dc.subjectCristalografia de superfície
dc.subjectDifração de Elétrons de Baixa Energia
dc.subjectLEED
dc.subjectGeometria atômica
dc.titleEstudo da geometria atômica dos sistemas Au(110) e Au(110)-Sb.
dc.typeDissertação de Mestrado


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