TRANSFORMATION OF THE ELECTRONIC STRUCTURE OF Cu INTO Cu2O IN THE ADSORPTION OF OXYGEN

Author:

BELASH V. P.1,KLIMOVA I. N.1,KORMILETS V. I.1,TRUBITSIN V. YU.1,FINKELSTEIN L. D.2

Affiliation:

1. Physico-Technical Institute, Russian Academy of Sciences, Ural Branch, Kirov str. 132, Izhevsk 426001, Russia

2. Institute of Metal Physics, Russian Academy of Sciences, Ural Branch, S. Kovalevskaya str. 18, Ekaterinburg 620219, Russia

Abstract

Systematic photoelectron-spectroscopy studies of the oxygen adsorption on a polycrystalline copper in a wide range of oxygen exposures allowed us to trace the step-by-step transformation of the electronic structure of pure Cu into the electronic structure of Cu 2 O . With the use of the density-of-states calculations implemented by the full-potential linear muffin-tin-orbital method, the interpretation of a number of features in the photoelectron spectra and their behavior with the increase of oxygen exposure was carried out. It was also shown that copper-surface oxidation proceeds in three main steps.

Publisher

World Scientific Pub Co Pte Lt

Subject

Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces,Condensed Matter Physics

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