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Theoretical Model for Adsorbate-Induced Surface Reconstructions: A Comparison of Potassium and Oxygen on Copper

Published online by Cambridge University Press:  16 February 2011

K. W. Jacobsen*
Affiliation:
Technical University of Denmark, Lab. of Appl. Physics, DK-2800 Lyngby, Denmark.
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Abstract

A Cu(110) surface can exhibit missing-row type reconstructions if potassium or oxygen atoms are chemisorbed on the surface. In the case of potassium every second of the closepacked rows in the top layer of the copper surface is removed. The reconstruction induced by oxygen on the same surface is of a very different kind where the missing rows are formed by picking out every second atom in the close-packed rows of the copper surface. The energetics and the driving force behind the two different reconstructions are discussed and compared on the basis of effective medium calculations.

Type
Research Article
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

[1] Behm, R. J., Ertl, G., Flynn, D. K., Jamison, K. D., and Thiel, D. A., Phys. Rev. B 36, 9267 (1987); J. W. M. Frenken, R. L. Krans, J. F. van der Veen, E. Holub-Krappe, and K. Horn, Phys. Rev. Lett. 59, 2307 (1987), and references therein.Google Scholar
[2] Bonzel, H. P. and Ferrer, S., Surf. Sci. 118, L263 (1982).Google Scholar
[3] Bronckers, R. P. N. and Wit, A. G. J. de, Surf. Sci. 112, 133 (1981); M. Bader, A. Puschmann, C. Ocal, and J. Haase, Phys. Rev. Lett. 57, 3273 (1986); D. J. Coulman, J. Wintterlin, R. J. Behm, and G. Ertl, to be published; F. Besenbacher, I. Stensgird, and E. Lagsgaard, to be published, and references therein.Google Scholar
[4] Jacobsen, K. W., Norskov, J. K., and Puska, M. J., Phys. Rev. B 35, 7423 (1987); K. W. Jacobsen, Comm. on Condensed Matter Physics 14, 129 (1988).Google Scholar
[5] Hohenberg, H. and Kohn, W., Phys. Rev. B 136, 864 (1964).Google Scholar
[6] Jacobsen, K. W. and Norskov, J. K., in The Structure of Surfaces II, edited by Veen, J. F. van der and Hove, M. A. van, pg. 118 (Springer Series in Surface Sciences 11, 1987)Google Scholar
[7] Here we neglect the one-electron energy so this estimate is not supposed to work well for those transition metals where the partial filling of the d-band is important.Google Scholar
[8] Ho, K.-M. and Bohnen, K. P., Phys. Rev. Lett. 59, 1833 (1987); C. L. Fu and K.-M. Ho, Phys. Rev. Lett. 3, 1617 (1989); and K.-M. Ho this volume.Google Scholar
[9] Kittel, C., Introduction to Solid State Physics, Wiley and Sons, NY (1971); G. Simmons and H. Wang, Single Crystal Elastic Constants and Calculated Aggregate Properties: A Handbook, MIT Press, Cambridge Massachusetts (1971).Google Scholar
[10] Jacobsen, K. W. and Norskov, J. K., Phys. Rev. Lett. 60, 2496 (1988).Google Scholar
[11] Jacobsen, K. W. and Norskov, J. K., to be published.Google Scholar