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Structural transformations on an oxidized Ag(111) surface

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Abstract

The structure of the Ag(111) surface after the adsorption of molecular oxygen at a temperature of 300 K is studied by low-temperature scanning tunneling microscopy. It is established that local surface oxide is formed at the first stage of adsorption. The subsequent adsorption of O results in the appearance of new objects with a size of 3–8 Å and a height of 1.0–1.5 Å on the Ag(111) surface, which form quasi-ordered structures with increasing degree of coating. The heating of the system obtained up to 500 K leads to a structural transition resulting in the formation of single islands of the p (4×4) phase on the surface. Surface structures are identified by a simulation based on the density functional theory.

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Authors and Affiliations

  1. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow, 119991, Russia

    B. V. Andryushechkin, V. M. Shevlyuga, T. V. Pavlova, G. M. Zhidomirov & K. N. Eltsov

  2. Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia

    G. M. Zhidomirov

Authors
  1. B. V. Andryushechkin
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  2. V. M. Shevlyuga
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  3. T. V. Pavlova
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  4. G. M. Zhidomirov
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  5. K. N. Eltsov
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Correspondence to B. V. Andryushechkin.

Additional information

Original Russian Text © B.V. Andryushechkin, V.M. Shevlyuga, T.V. Pavlova, G.M. Zhidomirov, K.N. Eltsov, 2017, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2017, Vol. 105, No. 5, pp. 270–274.

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Andryushechkin, B.V., Shevlyuga, V.M., Pavlova, T.V. et al. Structural transformations on an oxidized Ag(111) surface. Jetp Lett. 105, 292–296 (2017). https://doi.org/10.1134/S0021364017050046

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  • DOI: https://doi.org/10.1134/S0021364017050046

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