FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2085361569> ?p ?o ?g. }

• W2085361569 endingPage "332" @default.
• W2085361569 startingPage "301" @default.
• W2085361569 abstract "The properties of clusters adsorbed on a crystal made of the same atoms are of interest in understanding crystal growth. Using the field ion microscope, we have therefore examined iridium clusters containing from 2 to 13 atoms held on the close-packed iridium (111) plane. The arrangement of iridium atoms in the clusters in relation to the binding sites for single atoms on Ir(111) has been determined in detailed mapping experiments. In all the clusters examined, atoms sit in nearest-neighbor sites. As the size of the cluster is increased, the likelihood of finding cluster atoms at bulk sites, at which addition of atoms propagates the normal fcc structure, also increases. From tetramers to Ir13, compact arrangements maximizing the number of close neighbors are favored. Measurements of the temperature for the onset of dissociation of these clusters reveal an unusual dependence of cluster cohesion upon size: the binding energy increases sharply from dimers to trimers, drops for tetramers, and then rises again. For clusters containing 5 or more atoms, the binding energy is relatively insensitive to size. The magnitude of the cohesive energy is also surprising; the bond energy amounts to only ∼14 that in a bulk crystal. Diffusion of the clusters over the surface is observed prior to dissociation, and the trends in the barrier to motion are similar to those in dissociation. However, for small clusters the activation energy rises more slowly than in dissociation, and for larger clusters it increases more rapidly. Quantitative determinations of the diffusion characteristics for dimers through pentamers again reveal an anomalously low activation energy for tetramers, but the prefactor is insensitive to cluster size, indicating that the mechanism of diffusion is the same independent of the number of cluster atoms. Detailed observations of cluster motion have been made at low temperatures, to identify the individual atomic events in diffusion. From these it appears that diffusion occurs by a series of single atom jumps. Although surface migration is found to be a reasonably simple process, the cohesive properties of these clusters appear quite sensitive to structure, and are markedly different from expectations based either on bulk properties, or on the behavior of clusters in the gas phase." @default.
• W2085361569 created "2016-06-24" @default.
• W2085361569 creator A5075455047 @default.
• W2085361569 creator A5079347278 @default.
• W2085361569 date "1990-12-01" @default.
• W2085361569 modified "2023-10-09" @default.
• W2085361569 title "Structure, stability, and surface diffusion of clusters: Irx on Ir(111)" @default.
• W2085361569 cites W1492887734 @default.
• W2085361569 cites W1964067330 @default.
• W2085361569 cites W1992611324 @default.
• W2085361569 cites W1998388802 @default.
• W2085361569 cites W2011339124 @default.
• W2085361569 cites W2029122268 @default.
• W2085361569 cites W2058276137 @default.
• W2085361569 cites W2064419646 @default.
• W2085361569 cites W2066971875 @default.
• W2085361569 cites W2071721868 @default.
• W2085361569 cites W2072659330 @default.
• W2085361569 cites W2087253887 @default.
• W2085361569 cites W2093674410 @default.
• W2085361569 cites W2148167225 @default.
• W2085361569 cites W3017068838 @default.
• W2085361569 doi "https://doi.org/10.1016/0039-6028(90)90232-w" @default.
• W2085361569 hasPublicationYear "1990" @default.
• W2085361569 type Work @default.
• W2085361569 sameAs 2085361569 @default.
• W2085361569 citedByCount "203" @default.
• W2085361569 countsByYear W20853615692012 @default.
• W2085361569 countsByYear W20853615692013 @default.
• W2085361569 countsByYear W20853615692014 @default.
• W2085361569 countsByYear W20853615692015 @default.
• W2085361569 countsByYear W20853615692017 @default.
• W2085361569 countsByYear W20853615692018 @default.
• W2085361569 countsByYear W20853615692019 @default.
• W2085361569 countsByYear W20853615692020 @default.
• W2085361569 countsByYear W20853615692021 @default.
• W2085361569 countsByYear W20853615692022 @default.
• W2085361569 countsByYear W20853615692023 @default.
• W2085361569 crossrefType "journal-article" @default.
• W2085361569 hasAuthorship W2085361569A5075455047 @default.
• W2085361569 hasAuthorship W2085361569A5079347278 @default.
• W2085361569 hasConcept C102931765 @default.
• W2085361569 hasConcept C121332964 @default.
• W2085361569 hasConcept C145148216 @default.
• W2085361569 hasConcept C147789679 @default.
• W2085361569 hasConcept C150394285 @default.
• W2085361569 hasConcept C15696416 @default.
• W2085361569 hasConcept C159467904 @default.
• W2085361569 hasConcept C161790260 @default.
• W2085361569 hasConcept C164866538 @default.
• W2085361569 hasConcept C178790620 @default.
• W2085361569 hasConcept C184779094 @default.
• W2085361569 hasConcept C185592680 @default.
• W2085361569 hasConcept C197977467 @default.
• W2085361569 hasConcept C199360897 @default.
• W2085361569 hasConcept C41008148 @default.
• W2085361569 hasConcept C41999313 @default.
• W2085361569 hasConcept C528581852 @default.
• W2085361569 hasConcept C55493867 @default.
• W2085361569 hasConcept C8010536 @default.
• W2085361569 hasConcept C93282013 @default.
• W2085361569 hasConceptScore W2085361569C102931765 @default.
• W2085361569 hasConceptScore W2085361569C121332964 @default.
• W2085361569 hasConceptScore W2085361569C145148216 @default.
• W2085361569 hasConceptScore W2085361569C147789679 @default.
• W2085361569 hasConceptScore W2085361569C150394285 @default.
• W2085361569 hasConceptScore W2085361569C15696416 @default.
• W2085361569 hasConceptScore W2085361569C159467904 @default.
• W2085361569 hasConceptScore W2085361569C161790260 @default.
• W2085361569 hasConceptScore W2085361569C164866538 @default.
• W2085361569 hasConceptScore W2085361569C178790620 @default.
• W2085361569 hasConceptScore W2085361569C184779094 @default.
• W2085361569 hasConceptScore W2085361569C185592680 @default.
• W2085361569 hasConceptScore W2085361569C197977467 @default.
• W2085361569 hasConceptScore W2085361569C199360897 @default.
• W2085361569 hasConceptScore W2085361569C41008148 @default.
• W2085361569 hasConceptScore W2085361569C41999313 @default.
• W2085361569 hasConceptScore W2085361569C528581852 @default.
• W2085361569 hasConceptScore W2085361569C55493867 @default.
• W2085361569 hasConceptScore W2085361569C8010536 @default.
• W2085361569 hasConceptScore W2085361569C93282013 @default.
• W2085361569 hasIssue "3" @default.
• W2085361569 hasLocation W20853615691 @default.
• W2085361569 hasOpenAccess W2085361569 @default.
• W2085361569 hasPrimaryLocation W20853615691 @default.
• W2085361569 hasRelatedWork W1992203098 @default.
• W2085361569 hasRelatedWork W2017047527 @default.
• W2085361569 hasRelatedWork W2017503994 @default.
• W2085361569 hasRelatedWork W2048940486 @default.
• W2085361569 hasRelatedWork W2058198422 @default.
• W2085361569 hasRelatedWork W2078233797 @default.
• W2085361569 hasRelatedWork W2183197316 @default.
• W2085361569 hasRelatedWork W2335126573 @default.
• W2085361569 hasRelatedWork W2998753987 @default.
• W2085361569 hasRelatedWork W4236149679 @default.
• W2085361569 hasVolume "239" @default.
• W2085361569 isParatext "false" @default.
• W2085361569 isRetracted "false" @default.

• next