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Structure ofTiO2Rutile (110) (1 × 1) from Ion Scattering Measurements

Author

Listed:
  • B. Hird

    (Ottawa-Carleton Institute for Physics, University of Ottawa Campus, Ottawa, Ontario, K1N 6N5, Canada)

  • R. A. Armstrong

    (Ottawa-Carleton Institute for Physics, University of Ottawa Campus, Ottawa, Ontario, K1N 6N5, Canada)

  • J. A. Seel

    (Ottawa-Carleton Institute for Physics, University of Ottawa Campus, Ottawa, Ontario, K1N 6N5, Canada)

Abstract

9.22 keV oxygen ion scattering has been used to examine the (110) surface structure ofTiO2rutile. Peaks in the spectrum of the emitted ions at 45° and at 77° are found at the energies expected forO+–TiandO+–Ocollisions by surface atoms. Surface preoparation to optimize the1 × 1structure involved annealing a previously sputtered surface to 600°C, first in10-6Torr ofO2, and then in UHV. Azimuthal and elevation angular variations of the yields for low incidence angles show shadowing effects. Preliminary analysis seems to be consistent with the (1 × 1) model of a complete surface layer, with rows of oxygen atoms above on the titanium bridge sites. The data suggests that our sample preparation produces incomplete rows of above-surface oxygen atoms, or frequent steps.

Suggested Citation

  • B. Hird & R. A. Armstrong & J. A. Seel, 1998. "Structure ofTiO2Rutile (110) (1 × 1) from Ion Scattering Measurements," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 5(01), pages 309-313.
    • Handle: RePEc:wsi:srlxxx:v:05:y:1998:i:01:n:s0218625x98000578
    DOI: 10.1142/S0218625X98000578
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