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Microstructural Evolution of Fe Grown on a (001) Cu Film and its Implication to the Elastic Anomaly in Metallic Superlattices

Published online by Cambridge University Press:  25 February 2011

J. Koike  and
M. Nastasi
J. Koike
Affiliation:
Center for Materials Science
M. Nastasi
Affiliation:
Materials Science and Technology Division Los Alamos National Laboratory, Los Alamos, NM 87545
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Abstract

A large softening of the shear modulus has been reported in metallic superlattices composed of insoluble bcc/fcc metals. In an attempt to understand this elastic anomaly, we have studied the microstructure of Fe/Cu bilayers as a function of the Fe thickness with transmission electron microscopy (TEM). Analysis of the moire fringes observed in plan-view TEM images revealed that the fee Fe structure epitaxially grows on the (001) Cu up to a thickness of 2.0 nm. At 2.3 nm, the bec Fe structure nucleates, accompanying lattice rotation around the growth direction with respect to the underlying fee structure. As the Fe thickness further increases, submicron polycrystalline grains formed. Based on these results, the microstructure of the metallic superlattices and its relation to the softening of the shear modulus will be discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 202: Symposium C – Evolution of Thin Film and Surface Microstructure , 1990 , 13
Copyright
Copyright © Materials Research Society 1991

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References

REFERENCES

1. Yang, W. M. C., Tsakalakos, T., and Hilliard, J. E., J. Appl. Phys. 48, 876 (1977).Google Scholar
2. Henein, G. E. and Hilliard, J. E., J. Appl. Phys. 54, 728 (1983).Google Scholar
3. Tsakalakos, T., and Hilliard, J. E., J. Appl. Phys. 54, 734 (1983).Google Scholar
4. Mattson, J., Bhadra, R., Ketterson, J. B., Brodsky, M., and Grimsditch, M., J. Appl. Phys. 67, 2873 (1990).Google Scholar
5. Moreau, A., Ketterson, J. B., and Mattson, J., Appl. Phys. Lett. 56, 1959 (1990).Google Scholar
6. Moreau, A., Ketterson, J. B., and Davis, B., J. Appl. Phys. 68, 1622 (1990).Google Scholar
7. Cammarata, R. C., Schlesinger, T. E., Kim, C., Qadri, S. B., and Edelstein, A. S., J. Appl. Phys. 56, 1862 (1990).Google Scholar
8. Kueny, A., Grimsditch, M., Miyano, K., Banerjee, I., Falco, C. M., and Schuller, I. K., Phys. Rev. Lett. 48, 166 (1982).Google Scholar
9. Khan, M. R., Chun, C. S. L., Felcher, G. P., Grimsditch, M., Kueny, A., Falco, C. M., and Schuller, I. K., Phys. Rev. B 27, 7186 (1983).Google Scholar
10. Danner, R., Huebener, R. P., Chun, C. S. L., Grimsditch, M., and Schuller, I. K., Phys. Rev. B 33, 3696 (1986).Google Scholar
11. Bell, J. A., Bennet, W. R., Zanoni, R., Stagemen, G. I., Falco, C. M., and Steaton, C. T., Sol. St. Comm. 64, 1339 (1987).Google Scholar
12. Schuller, I. K., in Physics. Fabrication, and Application of Multilayered Structures (NATO ASI Series vol. 182), edited by Dhez, P. and Weisbuch, C. (Plenum Press, NY, 1988), p. 139.Google Scholar
13. Clemens, B. M., Eesley, G. L., Phys. Rev. Lett. 61, 2356 (1988).Google Scholar
14. Wolf, D. and Lutsko, J. F., Phys. Rev. Lett. 60, 1170 (1988).Google Scholar
15. Hirsch, P., Howie, A., Nicholson, R. B., Pashley, D. W., and Whelan, M. J., Electron Microscopy of Thin Crystals. 2nd ed. (Krieger, Robert E. Publishing Co., Inc., Malabar, Florida, 1977), p.343.Google Scholar
16. Kato, M., Fukase, S., Sato, A., and Mori, T., Acta metall., 34, 1179 (1986).Google Scholar
17. Kubaschewski, O., Ion-Binary Phase Diagrams (Springer-Verlag, 1982), p. 35.Google Scholar
18. Koike, J., Scripta Metall. et Mat. (1990), accepted.Google Scholar
19. Jesser, W. A. and Matthews, J. W., Phil. Mag., 15, 1097 (1967).Google Scholar
20. Dahmen, U., Acta metall., 30, 63 (1982).Google Scholar
21. See, for example, Wayman, C. M., Introduction to the Crvstallopraphy of Martensitic Transformations. (Macmillan, NY, 1964).Google Scholar
22. Hashimoto, H., Mannami, M., and Naiki, T., Phil. Trans. Roy. Soc. A253, 459 (1961).Google Scholar