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Reconstruction of Pt(111) and domain patterns on close-packed metal surfaces

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dc.contributor.author Pushpa, Raghani
dc.contributor.author Narasimhan, Shobhana
dc.date.accessioned 2011-07-05T11:44:59Z
dc.date.available 2011-07-05T11:44:59Z
dc.date.issued 2003-05-23
dc.identifier.citation Physical Review B 67(20), 205418 (2003) en_US
dc.identifier.uri https://libjncir.jncasr.ac.in/xmlui/10572/129
dc.description.abstract We have studied the reconstruction of Pt(111) theoretically using a two-dimensional Frenkel-Kontorova model for which all parameters have been obtained from ab initio calculations. We find that the unreconstructed surface lies right at the stability boundary, explaining why it is easy to induce the surface to reconstruct into a pattern of fcc and hcp domains. The experimentally observed “rotors” at intersections of domain walls are shown to arise from a slight rotation of the top layer relative to the substrate. The size and shape of domains are very sensitive to the density in the top layer, the angle of rotation, and the chemical potential, with smooth transformations between different patterns that include the honeycomb, wavy triangles, bright stars, and Moiré pattern. This shows that the same physics is operating in the various homoepitaxial and heteroepitaxial systems for which these different patterns have been reported, with the apparent differences arising from very slight changes in parameters en_US
dc.description.uri http://dx.doi.org/10.1103/PhysRevB.67.205418 en_US
dc.language.iso en en_US
dc.publisher The American Physical Society en_US
dc.rights © 2003 The American Physical Society en_US
dc.subject Close-packed metal surfaces en_US
dc.subject Domain patterns -- Reconstruction en_US
dc.subject Pt(111 ) -- Reconstruction en_US
dc.title Reconstruction of Pt(111) and domain patterns on close-packed metal surfaces en_US
dc.type Article en_US


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