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dc.contributor.author | Galiana, Beatriz | - |
dc.contributor.author | Benedicto, Marcos | - |
dc.contributor.author | Díez-Merino, Laura | - |
dc.contributor.author | Lorbek, S. | - |
dc.contributor.author | Hlawacek, G. | - |
dc.contributor.author | Teichert, Christian | - |
dc.contributor.author | Tejedor, Paloma | - |
dc.date.accessioned | 2014-04-03T09:55:14Z | - |
dc.date.available | 2014-04-03T09:55:14Z | - |
dc.date.issued | 2013 | - |
dc.identifier | doi: 10.1063/1.4826452 | - |
dc.identifier | issn: 0021-9606 | - |
dc.identifier | e-issn: 1089-7690 | - |
dc.identifier.citation | Journal of Chemical Physics 139(6): 164712 (2013) | - |
dc.identifier.uri | http://hdl.handle.net/10261/94863 | - |
dc.description.abstract | Atomic hydrogen modification of the surface energy of GaAs (110) epilayers, grown at high temperatures from molecular beams of Ga and As4, has been investigated by friction force microscopy (FFM). The reduction of the friction force observed with longer exposures to the H beam has been correlated with the lowering of the surface energy originated by the progressive de-relaxation of the GaAs (110) surface occurring upon H chemisorption. Our results indicate that the H-terminated GaAs (110) epilayers are more stable than the As-stabilized ones, with the minimum surface energy value of 31 meV/Å2 measured for the fully hydrogenated surface. A significant reduction of the Ga diffusion length on the H-terminated surface irrespective of H coverage has been calculated from the FFM data, consistent with the layer-by-layer growth mode and the greater As incorporation coefficient determined from real-time reflection high-energy electron diffraction studies. Arsenic incorporation through direct dissociative chemisorption of single As4 molecules mediated by H on the GaAs (110) surface has been proposed as the most likely explanation for the changes in surface kinetics observed. © 2013 AIP Publishing LLC. | - |
dc.description.sponsorship | This work was supported by the Spanish MINECO under Grant No. MAT2011-22536. | - |
dc.publisher | American Institute of Physics | - |
dc.relation.isversionof | Publisher's version | - |
dc.rights | openAccess | - |
dc.title | Modified energetics and growth kinetics on H-terminated GaAs (110) | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1063/1.4826452 | - |
dc.relation.publisherversion | http://dx.doi.org/10.1063/1.4826452 | - |
dc.date.updated | 2014-04-03T09:55:14Z | - |
dc.description.version | Peer Reviewed | - |
dc.language.rfc3066 | eng | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.openairetype | artículo | - |
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energetics and growth kinetics.pdf | 999,83 kB | Adobe PDF | Visualizar/Abrir |
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