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Reaction pathway analysis for dislocation nucleation from a Ni surface step

J. Appl. Phys. 106, 093507 (2009); doi:10.1063/1.3254178

Published 6 November 2009

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Shotaro Hara, Satoshi Izumi, and Shinsuke Sakai
Department of Mechanical Engineering, The University of Tokyo, Tokyo 113-0033, Japan
Threshold strain required for a thermally activated dislocation nucleation from a Ni surface step has been measured using an atomistic-based reaction pathway analysis. We show that the saddle-point configuration and the stress-dependent activation energy are strongly influenced by the presence of a surface step. Our results provide insight into the previous experimental findings concerning the mechanism on a coherency loss at the Ni/Cu(001) interface. We conclude that the coherency strain caused by a lattice mismatch between Ni and Cu does not yield a sufficient driving force for the dislocation nucleation. ©2009 American Institute of Physics
History: Received 23 April 2009; accepted 26 September 2009; published 6 November 2009
Permalink: http://link.aip.org/link/?JAPIAU/106/093507/1
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KEYWORDS and PACS

Keywords
PACS
  • 61.72.Ff
    Direct observation of dislocations and other defects
  • 68.35.Gy
    Mechanical properties and surface strains of solid surfaces and interfaces
  • 82.20.Pm
    Chemical rate constants, reaction cross sections, and activation energies
  • 82.65.+r
    Surface and interface chemistry; heterogeneous catalysis at surfaces
  • 81.40.Lm
    Deformation, plasticity, and creep
  • 62.20.F-
    Deformation and plasticity of solids
  • YEAR: 2009

PUBLICATION DATA

ISSN:
0021-8979 (print)   1089-7550 (online)
Publisher:
AIP is a member of CrossRef AIP

REFERENCES (33)
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  1. L. B. Freund and S. Suresh, Thin Film Materials (Cambridge University Press, Cambridge, 2003), p. 387.
  2. J. W. Matthews and A. E. Blakeslee, J. Cryst. Growth 27, 118 (1974).
  3. R. G. Hoagland, J. P. Hirth, A. Misra, and D. Mitlin, Appl. Phys. Lett. 84, 5136 (2004).
  4. D. Mitlin, A. Misra, V. Radmilovic, M. Nastasi, R. Hoagland, D. J. Embury, J. P. Hirth, and T. E. Mitchell, Philos. Mag. 84, 719 (2004).
  5. D. Mitlin, A. Misra, T. E. Mitchell, J. P. Hirth, and R. G. Hoagland, Philos. Mag. 85, 3379 (2005).
  6. S. V. Kamat and J. P. Hirth, J. Appl. Phys. 67, 6844 (1990).
  7. G. Wagner, Phys. Status Solidi A 173, 385 (1999).
  8. J. Godet, L. Pizzagalli, S. Brochard, and P. Beauchamp, Phys. Rev. B 70, 054109 (2004).
  9. S. Brochard, P. Beauchamp, and J. Grilhe, Philos. Mag. A 80, 503 (2000).
  10. J. Li, MRS Bull. 32, 151 (2007).
  11. J. P. Hirth and J. Lothe, Theory of Dislocations, 2nd ed. (Krieger, Florida, 1982), p. 168.
  12. G. Xu and C. Zhang, J. Mech. Phys. Solids 51, 1371 (2003).
  13. J. R. Rice and G. E. Beltz, J. Mech. Phys. Solids 42, 333 (1994).
  14. F. Cleri, D. Wolf, S. Yip, and S. R. Phillpot, Acta Mater. 45, 4993 (1997).
  15. Y. M. Juan, Y. Sun, and E. Kaxiras, Philos. Mag. Lett. 73, 233 (1996).
  16. T. Zhu, J. Li, and S. Yip, Phys. Rev. Lett. 93, 025503 (2004).
  17. S. Izumi and S. Yip, J. Appl. Phys. 104, 033513 (2008).
  18. T. Zhu, J. Li, A. Samanta, H. G. Kim, and S. Suresh, Proc. Natl. Acad. Sci. U.S.A. 104, 3031 (2007).
  19. J. R. Rice, J. Mech. Phys. Solids 40, 239 (1992).
  20. H. Van Swygenhoven, P. M. Derlet, and A. G. Froseth, Nature Mater. 3, 399 (2004).
  21. J. Li, A. H. W. Ngan, and P. Gumbsch, Acta Mater. 51, 5711 (2003).
  22. D. Siegel, Appl. Phys. Lett. 87, 121901 (2005).
  23. S. Ogata, J. Li, N. Hirosaki, Y. Shibutani, and S. Yip, Phys. Rev. B 70, 104104 (2004).
  24. Y. Mishin, M. J. Mehl, D. A. Papaconstantopoulos, A. F. Voter, and J. D. Kress, Phys. Rev. B 63, 224106 (2001).
  25. X. W. Zhou, H. N. G. Wadley, R. A. Johnson, D. J. Larson, N. Tabat, A. Cerezo, A. K. Petford-Long, G. D. W. Smith, P. H. Clifton, R. L. Martens, and T. F. Kelly, Acta Mater. 49, 4005 (2001).
  26. F. Voter and S. P. Chen, Mater. Res. Soc. Symp. Proc. 82, 175 (1987).
  27. The Mishin potential yields gammaus=366  mJ/m2, gammasf/gammaus=0.34, and tauideal=8.36  GPa, while the Voter and Chen potential yields gammaus=225  mJ/m2, gammasf/gammaus=0.25, and tauideal=4.25  GPa. Compared with DFT values of gammaus and tauideal (see text), the Mishin potential would tend to overestimate the athermal limit, which, on the contrary, the Voter and Chen potential underestimates.
  28. G. Henkelman, B. P. Uberuaga, and H. Jonsson, J. Chem. Phys. 113, 9901 (2000).
  29. G. Henkelman and H. Jonsson, J. Chem. Phys. 113, 9978 (2000).
  30. M. J. Kobrinsky and C. V. Thompson, Acta Mater. 48, 625 (2003).
  31. R. J. Asaro and S. Suresh, Acta Mater. 53, 3369 (2005).
  32. T. Zhu, J. Li, A. Samanta, A. Leach, and K. Gall, Phys. Rev. Lett. 100, 025502 (2008).
  33. J. Li, Modell. Simul. Mater. Sci. Eng. 11, 173 (2003).

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