Energetics of Entropic Step Doubling on W(430)

  • S. Dey
  • S. Kiriukhin
  • Leyla Sutcu
  • J. West
  • E. H. Conrad
Part of the NATO ASI Series book series (NSSB, volume 360)


We present LEED evidence from W(430) showing a phase transition from single-height steps to double-height steps occuring at 940 K. The transition is thought to be driven by the formation of kinks on double steps that are energetically lower compared to kinks on single-height steps. The doubling transition can be predicted in terms of a simple free energy model including step-step interactions.


Free Energy Height Step Step Edge Lower Free Energy Free Energy Curve 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    E. Hahn, H. Schief, V. Marsico, A. Fricke and K. Kern, Phys. Rev. Lett. 72, 3378 (1994).ADSCrossRefGoogle Scholar
  2. 2.
    G. Hoogers and D.A. King, Surf. Sci. 286, 306 (1993).ADSCrossRefGoogle Scholar
  3. 3.
    T.M. Jung, R.J. Phaneuf and E.D. Williams, Surf. Sci. 254, 235 (1991).ADSCrossRefGoogle Scholar
  4. 4.
    H. Itoh, S. Narui, Z. Zhang and T. Ichonokawa, Surf. Sci. 211, 70 (1992).CrossRefGoogle Scholar
  5. 5.
    J. Wasserfall and W. Ranke, Surf. Sci. 315, 226 (1994).Google Scholar
  6. 6.
    E.D. Williams and N.C. Bartelt, Science 251, 393 (1991).ADSCrossRefGoogle Scholar
  7. 7.
    S. Dey, S. Kiriukhin, J. West and E.H. Conrad, Phys. Rev. Lett. 77, 530 (1996).ADSCrossRefGoogle Scholar
  8. 8.
    Y.M. Gong and R. Gomer, J. Chem. Phys. 88, 1359 (1988); 88 1370 (1988).ADSCrossRefGoogle Scholar
  9. 9.
    M. Henzler in; Electron Spectroscopy for Surface Analysis, H. Ibach, ed., Springer, Berlin (1979).Google Scholar
  10. 10.
    J. West, Ph.D. Thesis, Georgia Institute of Technology, (unpublished).Google Scholar
  11. 11.
    P.R. Pukite, C.S. Lent and P.I. Cohen, Surf. Sci. 161, 39 (1985).ADSCrossRefGoogle Scholar
  12. 12.
    C. Jayaprakash, C. Rottman and W.F. Saam, Phys. Rev. B 30, 6549 (1984).ADSGoogle Scholar
  13. 13.
    C. Jayaprakash, W.F. Saam and S. Teitel, Phys. Rev. Lett. 50, 2017 (1983).ADSCrossRefGoogle Scholar
  14. 14.
    N.C. Bartelt, E.D. Williams, R.J. Phaneuf, Y. Yang and S. Das Sarma, J. Vac. Sci. Technol. A 7, 1898 (1989).ADSGoogle Scholar
  15. 15.
    P. Nozières, J. Phys. 50, 2541 (1989).CrossRefGoogle Scholar
  16. 16.
    B.S. Swartzentruber, Y.-W. Mo, R. Kariotis, M.G. Lagally, and M.B. Webb, Phys. Rev. Lett. 65, 1913 (1990).ADSCrossRefGoogle Scholar
  17. J. Frohn, M. Giesen, M. Poengsgen, J.F. Wolf and H. Ibach, Phys. Rev. Lett. 67, 3543 (1991).ADSCrossRefGoogle Scholar
  18. W.W. Pai, J.S. Ozcomert, N.C. Bartelt, T.L. Einstein and J.E. Reutt-Robey, Surf. Sci. 307-309, 747 (1994).ADSCrossRefGoogle Scholar
  19. 17.
    H. van Beijeren and I. Nolden, in Structure and Dynamics of Surfaces II, Schommers and P. von Blanckenhagen, eds., Springer-Verlag, Berlin (1987), p. 259.Google Scholar
  20. 18.
    W. Xu, J.B. Adams and T.L. Einstein, (to be published).Google Scholar
  21. 19.
    W. Xu (private communication).Google Scholar
  22. 20.
    See for example, Rici Yu, H. Krakauer, and D. Singh, Phys. Rev. 45, 8671 (1992) and refs. therein.ADSCrossRefGoogle Scholar
  23. 21.
    E.D. Williams, RJ. Phaneuf, J. Wei, N.C. Bartelt and T.L. Einstein, Surf. Sci. 294, 219 (1993); Surf. Sci. 310, 451 (1994).ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • S. Dey
    • 1
  • S. Kiriukhin
    • 1
  • Leyla Sutcu
    • 2
  • J. West
    • 1
  • E. H. Conrad
    • 1
  1. 1.School of PhysicsGeorgia Institute of TechnologyAtlantaUSA
  2. 2.CTSPSClark Atlanta UniversityAtlantaUSA

Personalised recommendations