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Phys. Rev. B 54, 4496–4499 (1996)

[Issue 7 – 15 August 1996 ]

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Intermixing during growth of Cr on Fe(100) studied by proton- and electron-induced Auger-electron spectroscopy

R. Pfandzelter, T. Igel, and H. Winter

Humboldt-Universität zu Berlin, Institut für Physik, Invalidenstrasse 110, 10115 Berlin, Germany

1- and 2-ML Cr films have been grown on Fe(100) under layer-by-layer conditions and studied using Auger electron spectroscopy induced by electrons and grazingly incident protons. Exploiting the different sampling depths for proton and electron excitation, we could quantitatively evaluate the layer-dependent concentration profiles of Cr and Fe near the film surface and their evolution in time. For a coverage of 1 ML, more than half of the deposited Cr atoms have undergone place exchange with Fe substrate atoms, which results in a mixed first and second layer. For 2 ML, the first and second layer consist predominantly of Cr. Long-time measurements show that as-grown 1-ML films are not stable.

©1996 The American Physical Society

URL: http://link.aps.org/abstract/PRB/v54/p4496
DOI: 10.1103/PhysRevB.54.4496
PACS: 68.35.Fx, 68.55.-a, 79.20.Rf

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References

1. E. Bauer, Appl. Surf. Sci. 11/12, 479 (1982); E. Bauer and J. H. van der Merwe, Phys. Rev. B 33, 3657 (1986).
2. See, e.g., S.-L. Chang, J.-M. Wen, P. A. Thiel, S. Günther, J. A. Meyer, and R. J. Behm, Phys. Rev. B (to be published) and references therein.
3. A. Davies, J. A. Stroscio, D. T. Pierce and R. J. Celotta, Phys. Rev. Lett. 76, 4175 (1996).
4. R. Pfandzelter and J. Landskron, Phys. Rev. Lett. 70, 1279 (1993).
5. See D. T. Pierce, J. Unguris, and R. J. Celotta, in Ultrathin Magnetic Structures II, edited by B. Heinrich and J. A. C. Bland (Springer, Berlin, 1994), p. 117, and references therein.
6. J. Unguris, R. J. Celotta and D. T. Pierce, Phys. Rev. Lett. 69, 1125 (1992); D. T. Pierce, R. J. Celotta and J. Unguris, J. Appl. Phys. 73, 6201 (1993).
7. D. Venus and B. Heinrich, Phys. Rev. B 53, R1733 (1996).
8. Y. Fujii, K. Narumi, K. Kimura, M. Mannami, T. Hashimoto, K. Ogawa, F. Ohtani, T. Yoshida and M. Asari, Appl. Phys. Lett. 63, 2070 (1993).
9. T. Igel, R. Pfandzelter, and H. Winter, Europhys. Lett. (to be published).
10. D. T. Pierce, J. A. Stroscio, J. Unguris and R. J. Celotta, Phys. Rev. B 49, 14t564 (1994).
11. S. Tanuma, C. J. Powell and D. R. Penn, Surf. Interface Anal. 17, 911 (1991).
12. K. Nishimori, H. Tokutaka and K. Takashima, Surf. Sci. 100, 665 (1980).
13. V. A. Markov, O. P. Pchelyakov, L. V. Sokolov, S. I. Stenin and S. Stoyanov, Surf. Sci. 250, 229 (1991).
14. G. Rosenfeld, R. Servaty, C. Teichert, B. Poelsema and G. Comsa, Phys. Rev. Lett. 71, 895 (1993).

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