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Interaction of Copper with Single Crystal Sapphire

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Abstract

The effect of small coverages of Cu evaporated in ultra-high vacuum (UHV) on Al2O3 (0001) surfaces has been investigated by X-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy (AES). These surfaces were cleaned either by annealing at 1000°C in O2 or by Ar sputtering. They differ both in their initial state and their interaction with Cu. The XPS spectra from as-deposited Cu on sputtered samples exhibit small shifts in the energy location of the various peaks as compared to those from a Cu standard. Annealing the Cu/sputtered Al2O3 structure at 500°C produces a shoulder on the Cu 3d peak as well as a new Cu (L3 M4.5 M4.5) Auger feature. Neither of these effects are observed after similar treatment of the Cu/annealed Al2O3 structure. An influence of this different bonding situation on the Cu-sapphire interfacial energy is observed.

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References

  1. J.E.E. Baglin, Proc. Mat. Res. Soc. 47, 3 (1985).

    Article  CAS  Google Scholar 

  2. K.H. Johnson and S.V. Pepper, J. Appl. Phys. 53 6634 (1982).

    Article  CAS  Google Scholar 

  3. S. Hofmann and J.H. Thomas III, J.Vac. Sci. Technol. B1, 43 (1983).

    Article  Google Scholar 

  4. N.S. McIntyre, S Sunder, D.W. Shoesmith, and F.W. Stanchell, J. Vac. Sci. Technol. 18, 714, (1981).

    Article  CAS  Google Scholar 

  5. S.P. Kowalczyk, L. Ley, F.R. McFeely, R.A. Pollak, and D.A. Shirley, Phys. Rev. B9, 381 (1974).

    Article  Google Scholar 

  6. S.W. Gaarenstroom, and N. Winograd, J. Chem. Phys. 67, 3500 (1977).

    Article  CAS  Google Scholar 

  7. D.C. Frost, C.A. McDowell and R.L. Tapping, J. Electron spectrosc. Relat. Phenom. 6, 347 (1975).

    Article  CAS  Google Scholar 

  8. A. Rosencwaig, and G.K. Wertheim, J. Electron Spectrosc. Relat. Phenom. 1, 493 (1972).

    Article  Google Scholar 

  9. A.C.D. Chaklader, A.M. Armstrong, and S.K. Misra, J.Amer. Ceram. Soc. 51, 630 (1968).

    Article  CAS  Google Scholar 

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Schrott, A.G., Thompson, R.D. & Tu, K.N. Interaction of Copper with Single Crystal Sapphire. MRS Online Proceedings Library 60, 331–336 (1985). https://doi.org/10.1557/PROC-60-331

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  • DOI: https://doi.org/10.1557/PROC-60-331

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