\"Temperature behavior of the (?3 x ?3 )R30?-1CO and the (2 x 2)-3CO overlayers on Rh(111): a combined HAS and LEED investigation (Articolo in rivista)

Type
Label
  • \"Temperature behavior of the (?3 x ?3 )R30?-1CO and the (2 x 2)-3CO overlayers on Rh(111): a combined HAS and LEED investigation (Articolo in rivista) (literal)
Anno
  • 1997-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/S0039-6028(96)01335-0 (literal)
Alternative label
  • H. Over, S. Schwegmann, D. Cvetko, V. De Renzi, L. Floreano, R. Gotter, A. Morgante, M. Peloi, and F. Tommasini, S. Zennaro (1997)
    "Temperature behavior of the (?3 x ?3 )R30?-1CO and the (2 x 2)-3CO overlayers on Rh(111): a combined HAS and LEED investigation
    in Surface science; ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, AMSTERDAM (Paesi Bassi)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • H. Over, S. Schwegmann, D. Cvetko, V. De Renzi, L. Floreano, R. Gotter, A. Morgante, M. Peloi, and F. Tommasini, S. Zennaro (literal)
Pagina inizio
  • 177 (literal)
Pagina fine
  • 184 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 376 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 8 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 1-3 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • MAX PLANCK GESELL,FRITZ HABER INST,FARADAYWEG 4-6,D-14195 BERLIN,GERMANY. TASC,INFM LAB,I-34012 TRIESTE,ITALY (literal)
Titolo
  • \"Temperature behavior of the (?3 x ?3 )R30?-1CO and the (2 x 2)-3CO overlayers on Rh(111): a combined HAS and LEED investigation (literal)
Abstract
  • The order-disorder phase transition of the Rh(lll)-(root 3 x root 3)R30 degrees-CO phase was investigated by He scattering. The critical temperature turned out to be 330+/-5 K, while the critical exponents are consistent with a phase transition belonging to the 3-state Potts universality class. The temperature dependence below the critical temperature of both CO phases was studied using elastic He scattering and LEED. These measurements demonstrate that a simple Debye-Waller evaluation of the diffraction data is not appropriate to provide information on the vibrational properties of the CO molecules. From LEED measurements at low temperatures (70 K) and various CO partial pressures there is evidence of the formation of a disordered second CO layer in equilibrium with the gas phase. The isosteric heat of CO adsorption in the second layer is about 6 kJ mol(-1). (literal)
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