The two-dimensional cobalt oxide (9x2) phase on Pd(100) (Articolo in rivista)

Type
Label
  • The two-dimensional cobalt oxide (9x2) phase on Pd(100) (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.3578187 (literal)
Alternative label
  • Gragnaniello L., Barcaro G., Sementa L., Allegretti F., Parteder G., Surnev S., Steurer W., Fortunelli A., Netzer F. P. (2011)
    The two-dimensional cobalt oxide (9x2) phase on Pd(100)
    in The Journal of chemical physics; American Institute Of Physics (AIP), Melville (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Gragnaniello L., Barcaro G., Sementa L., Allegretti F., Parteder G., Surnev S., Steurer W., Fortunelli A., Netzer F. P. (literal)
Pagina inizio
  • 184706 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 134 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR-IPCF (literal)
Titolo
  • The two-dimensional cobalt oxide (9x2) phase on Pd(100) (literal)
Abstract
  • The two-dimensional (2D) Co oxide monolayer phase with (9 × 2) structure on Pd(100) has been investigated experimentally by scanning tunneling microscopy (STM) and theoretically by density functional theory (DFT). The high-resolution STM images reveal a complex pattern which on the basis of DFT calculations is interpreted in terms of a coincidence lattice, consisting of a CoO(111)-type bilayer with significant symmetry relaxation and height modulations to reduce the polarity in the overlayer. The most stable structure displays an unusual zig-zag type of antiferromagnetic ordering. The (9x2) Co oxide monolayer is energetically almost degenerate with the c(4x2) monolayer phase, which is derived from a single CoO(100)-type layer with a Co3O4 vacancy structure. Under specific preparation conditions, the (9x2) and c(4x2) structures can be observed in coexistence on the Pd(100) surface and the two phases are separated by a smooth interfacial boundary line, which has been analyzed at the atomic level by STM and DFT. The here described 2D Co oxide nanolayer systems are characterized by a delicate interplay of chemical, electronic, and interfacial strain interactions and the associated complexities in the theoretical description are emphasized and discussed. (literal)
Editore
Prodotto di
Autore CNR

Incoming links:


Prodotto
Autore CNR di
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
Editore di
data.CNR.it