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ADSORPTION KINETICS OF POTASSIUM ONSrTiO3(100)

Author

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  • E. E. MORI

    (Department of Physics, University of Ioannina, 451 10 Ioannina, Greece)

  • M. KAMARATOS

    (Department of Physics, University of Ioannina, 451 10 Ioannina, Greece)

Abstract

In this paper, we study the kinetics of potassium adsorption onSrTiO3(100)surface at room temperature. The study took place in UHV using AES, EELS, LEED, TPD, and WF measurements. Potassium grows in two-dimensional islands with maximum coverage of 3.9 × 1014at/cm2. During adsorption charge transfer from theK-4s toTi-3d energy level has been observed. NoK–Ocompound has been measured. After heating at 1050Kmost of the adsorbed potassium desorbs and theSrTiO3(100)(1 × 1) LEED pattern reappears. There is not any indication of potassium intercalation into the substrate, either at room or at elevated temperature.

Suggested Citation

  • E. E. Mori & M. Kamaratos, 2006. "ADSORPTION KINETICS OF POTASSIUM ONSrTiO3(100)," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 13(05), pages 681-686.
    • Handle: RePEc:wsi:srlxxx:v:13:y:2006:i:05:n:s0218625x06008657
    DOI: 10.1142/S0218625X06008657
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