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Phys. Rev. B 47, 15037–15045 (1993)

[Issue 22 – 1 June 1993 ]

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Structural and magnetic properties of semiepitaxial Co/Cr multilayers

Y. Henry, C. Mény, A. Dinia, and P. Panissod

Institut de Physique et de Chimie des Matériaux de Strasbourg, Groupe d'Etude des Matériaux Métalliques, Université Louis Pasteur, 4 rue Blaise Pascal, 67070 Strasbourg, France

The structural and magnetic properties of semiepitaxial Co/Cr multilayers have been studied using reflection high-energy electron diffraction (RHEED), nuclear magnetic resonance (NMR), and vibrating-sample magnetometry (VSM). A detailed analysis of the RHEED patterns observed during the growth shows that the Cr layers essentially consist of three types of distorted bcc (110) crystallites, one of them corresponding to the Nishiyama-Wassermann epitaxial relationship and the others to the Kurdjumov-Sachs one. From the resonance frequency of the NMR spectra main line we deduce the close-packed structure of the Co layers and using diffused-interface models we obtain the average concentration and magnetization profiles in the interfaces which are found to be 5 monolayers thick. The large intermixing is confirmed by a strong decrease of the measured saturation magnetization values as the Co-layer thickness decreases and is supposed to be responsible for the deviation from linearity, observed at small thicknesses, in the plot of the effective anisotropy per unit area versus Co-layer thickness.

©1993 The American Physical Society

URL: http://link.aps.org/abstract/PRB/v47/p15037
DOI: 10.1103/PhysRevB.47.15037
PACS: 75.50.Rr, 61.14.Hg, 76.60.Lz, 75.30.Gw

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References

1. S. Iwasaki and Y. Nakamura, IEEE Trans. Magn. MAG-13, 1272 (1977) [ INSPEC].
2. S. Iwasaki and K. Ouchi, IEEE Trans. Magn. MAG-14, 849 (1978) [ INSPEC].
3. N. Sato, J. Appl. Phys. 61, 1979 (1987) [ SPIN][ INSPEC].
4. M. B. Stearns, C. H. Lee and T. L. Groy, Phys. Rev. B 40, 8256 (1989).
5. P. Boher, F. Giron, P. Houdy, P. Beauvillain, C. Chappert and P. Veillet, J. Appl. Phys. 70, 5507 (1991) [ INSPEC].
6. F. J. A. den Broeder, D. Kuiper, A. P. van de Mosselaer and W. Hoving, Phys. Rev. Lett. 60, 2769 (1988).
7. H. J. G. Draaisma, F. J. A. den Broeder, and W. J. M. de Jonge, J. Appl. Phys. 63, 3479 (1988) [ SPIN][ INSPEC].
8. D. Stoeffler and F. Gautier (private communication).
9. G. Wassermann, Arch. Eisenhuttenwes. 16, 647 (1933).
10. Z. Nishiyama, Sci. Rep. Tohoku Univ., Ser. 1 23, 638 (1934).
11. G. Kurdjumov and G. Sachs, Z. Phys. 64, 325 (1930).
12. Y. Gotoh and H. Fukuda, in Computer-Aided Innovation of New Materials, edited by M. Doyoma, T. Suzuki, J. Kihara, and R. Yamamoto (Elsevier, Amsterdam, 1991), p. 843.
13. J. Dekoster, E. Jedryka, C. Mény, and P. Panissod, J. Magn. Magn. Mater. (to be published).
14. C. Mény, E. Jedryka and P. Panissod, J. Phys.: Condens. Matter. (to be published).
15. H. A. M. de Gronckel, K. Kopinga, W. J. M. de Jonge, P. Panissod, J. P. Schillé, and F. J. A. den Broeder, Phys. Rev. B 44, 9100 (1991).
16. C. Mény, P. Panissod and R. Loloee, Phys. Rev. B 45, 12269 (1992).
17. M. Kawakami, J. Phys. Soc. Jpn. 40, 56 (1976) [ INSPEC].
18. F. Bolzoni, F. Leccabue, R. Panizzieri and L. Pareti, J. Magn. Magn. Mater. 31-34, 845 (1983).
19. R. D. Fisher, V. S. Au-Yeung and B. B. Saboo, IEEE Trans. Magn. MAG-20, 806 (1984) [ INSPEC].
20. S. Iwasaki, IEEE Trans. Magn. MAG-16, 71 (1980) [ INSPEC].
21. H. J. G. Draaisma, W. J. M. de Jonge, and F. J. A. den Broeder, J. Magn. Magn. Mater. 66, 351 (1987) [ INSPEC].
22. F. J. A. den Broeder, W. Hoving, and P. J. H. Bloemen, J. Magn. Magn. Mater. 93, 562 (1991) [ INSPEC].
23. A. Dinia, K. Ounadjela, A. Arbaoui, G. Suran, D. Muller, and P. Panissod, J. Magn. Magn. Mater. 104-107, 1871 (1992).
24. C. H. Lee, H. He, F. J. Lamelas, W. Vavra, C. Uher and R. Clarke, Phys. Rev. B 42, 1066 (1991).
25. P. Bruno, thesis, University of Paris, 1989 (unpublished).
26. B. N. Engel, C. D. England, R. A. van Leeuwen, M. H. Wiedmann and C. M. Falco, Phys. Rev. B 67, 1910 (1991).

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