Local and long-range order of carbon impurities on Fe(100): Analysis of self-organization at a nanometer scale (Articolo in rivista)

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  • Local and long-range order of carbon impurities on Fe(100): Analysis of self-organization at a nanometer scale (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.73.035431 (literal)
Alternative label
  • Panaccione G., Fujii J., Vobornik I., Trimarchi G., Binggeli N., Goldoni A., Larciprete R., Rossi G. (2006)
    Local and long-range order of carbon impurities on Fe(100): Analysis of self-organization at a nanometer scale
    in Physical review. B, Condensed matter and materials physics (Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Panaccione G., Fujii J., Vobornik I., Trimarchi G., Binggeli N., Goldoni A., Larciprete R., Rossi G. (literal)
Pagina inizio
  • 035431 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://prb.aps.org/abstract/PRB/v73/i3/e035431 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 73(3) (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1) TASC Laboratory INFM-CNR, in Area Science Park, S.S.14, Km 163.5, I-34012 Trieste, Italy 2) INFM-CNR DEMOCRITOS National Simulation Center and Abdus Salam International Center for Theoretical Physics, I-34014 Trieste, Italy 3) Sincrotrone Trieste S.C.p.A., Lab. ELETTRA, in Area Science Park, S.S. 14 Km 163.5, I-34012 Trieste, Italy 4) TASC Laboratory INFM-CNR, in Area Science Park, S.S.14, Km 163.5, I-34012 Trieste, Italy and Dipartimento di Fisica dell’ Universita’ di Modena e Reggio Emilia, I-41100 Modena, Italy *Present address: CNR-Istituto dei Sistemi Complessi, via Salaria, Km.29.3, 00016 Montelibretti (RM), Italy (literal)
Titolo
  • Local and long-range order of carbon impurities on Fe(100): Analysis of self-organization at a nanometer scale (literal)
Abstract
  • Bulk carbon impurities segregate at the Fe(100) surface and, upon thermal annealing, can form metastable surface phases, with local and long-range order, that show peculiar electronic properties. We present a surface science study of C-segregated Fe(100) with scanning tunneling microscopy/spectroscopy (STM/STS), core level spectroscopy, and ab initio calculations of the surface structure. In particular, we investigate a c(3V2xV2) structure, observed for 0.67±0.05 atomic layers of C segregated at the iron surface. This structure is found to be due to self-organized carbon stripes, which form a regular pattern on a nanometer lateral scale and are made of zig-zag chains. The C atoms in the chains lie slightly off center in the fourfold hollow site and are bonded to 5 Fe neighbors. Striking features of this structure are the self-avoiding chains, the passivation effect of the iron surface, and the presence of one-dimensional-like Fe surface states close to the Fermi energy. (literal)
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