http://www.cnr.it/ontology/cnr/individuo/prodotto/ID231886
Unusual disordering processes of oxygen overlayers on Rh(110): a combined HAS and LEED study (Articolo in rivista)
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- Unusual disordering processes of oxygen overlayers on Rh(110): a combined HAS and LEED study (Articolo in rivista) (literal)
- Anno
- 1997-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1103/PhysRevB.55.4717 (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)
Unusual disordering processes of oxygen overlayers on Rh(110): a combined HAS and LEED study
in Physical review. B, Condensed matter; The American Physical Society, College Park, MD 20740-3844 (Stati Uniti d'America)
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- 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)
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- http://biblioproxy.cnr.it:2204/doi/10.1103/PhysRevB.55.4717 (literal)
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- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
Laboratorio Tecnologie Avanzate Superfici e Catalisi, Area di Ricerca, Padriciano 99, I-34012 Trieste, Italy (literal)
- Titolo
- Unusual disordering processes of oxygen overlayers on Rh(110): a combined HAS and LEED study (literal)
- Abstract
- The temperature-dependent behavior of the Rh(111)-(2X2)-10 phase was investigated by He-atom scattering (HAS) and low-energy electron diffraction. The adsorption system undergoes an order-disorder phase transition at T-c=280+/-5 K, with critical exponents found to be consistent with the four-state Potts model. Beyond the phase transition the HAS specular peak intensity exhibits a strong and reversible increase. This finding points toward a reduction of the surface charge-density corrugation induced by the phase transition itself. Around 160 K, hydrogen adsorbed on the Rh(111)-(2X2)-10 surface reacts with oxygen to form water, and drives the overlayer in an out-of-equilibrium condition which is characterized by a dramatic domain-wall proliferation. (literal)
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