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    • Keywords


      X-ray photoelectron spectroscopy; Auger electron spectroscopy; surface oxidation; Auger ratio; oxidation state

    • Abstract


      Surface oxidation of Co has been investigated at different temperatures in the 300–600 K range at oxygen exposures upto 106 L by XPES and AES techniques. In the XPES, both the valence band and core level bands have been employed to monitor the oxidation while in the AES, metal Auger intensity ratios as well as O(KLL)/Co(L23M45M45) ratios have been examined. Only CoO is formed on the surface at high oxygen exposures at and above 500 K.

    • Author Affiliations


      M S Hegde1 A Srinivasan1 K Jagannathan1 G C Chaturvedi2

      1. Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore - 560 012, India
      2. Department of Chemistry, R. B. Singh College, Agra
    • Dates

  • Journal of Chemical Sciences | News

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