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Structural and Magnetic Properties of Ion Beam Deposited Nanocrystalline Al-Co and Al-Co-O Films

Published online by Cambridge University Press:  03 September 2012

H. R. Khan  and
F. Brouers
H. R. Khan
Affiliation:
Material Physics, FEM, 73525 Schwäbisch Gmünd, Germany
F. Brouers
Affiliation:
Department of Materials Science, University of Liège, Liège, Belgium
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Abstract

Nanocrystalline films of Al-Co and Al-Co-O are deposited on glass substrates using Ar and (Ar + O2) gas mixture by IB and IAB deposition techniques. The structure of the films is investigated by X-ray diffraction. Annealed (500°C/ 0.5 h / Vacuum) films show a preferred Co<111> + Al<200> crystallographic orientation. The crystallite size estimated from the line broadening of Co<111> + Al<2007gt;reflections lies between 4 and 12 nm. The value of Mx/Ms increases with decreasing Co concentration from 0.2 (74 at.%) to 0.4 (46 at.%) for IB(Ar) films, where Mr and Ms are the remanence and saturation magnetizations respectively. IB (Ar + O2) and IAB (Ar + O2) films of the same composition A154Co46Ox show different magnetic behaviour.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 438: Symposium A – Materials Modificaton and Synthesis by Ion Beam… , 1996 , 531
Copyright
Copyright © Materials Research Society 1997

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References

1. Zhang, S., Levy, P.M. and Fert, A. Phys. Rev. B, 45 (1992) 8689 Google Scholar
2. Itoh, H., Ionoue, J. and Maekawa, S., Phys. Rev. B, 17 (1993) 5809 Google Scholar
3. Parkin, S.S.P., Li, Z.G. and Smith, D.J. Appl. Phys. Lett., 58 (1991) 2710 Google Scholar
4. Levy, P.M. Science, 156 (1992) 972 Google Scholar
5. Berkowitz, A.E., Mitchell, J.R., Carey, M.J., Young, A.P. Zhang, S., Spada, F.E., Parker, F.T., Hutten, A. and Thomas, G. Phys. Rev. Lett., 68 (1992) 3745 Google Scholar
6. Xiao, J.Q., Jiang, J.S. and Chien, C.L., Phys. Rev. B, 43 (1991) 8089 Google Scholar
7. Chien, C.L., Xiao, J.Q. and Jiang, J.S. J. Appl. Phys. 73 (1993) 5309 Google Scholar
8. Makhlouf, S.F., Sumiyama, K. and Suzuki, K., Jpn. J. Appl. Phys., 33 (1994) 4913 Google Scholar
9. Khan, H.R. J. of Magn. Magn. Mater. (1996) in printGoogle Scholar
10. Fujimori, H., Mitani, S., Ohnuma, S., Ikeda, T., Shima, T. and Masumoto, T., Mater. Sci. Eng., A181/182 (1994) 897 Google Scholar
11. Mitani, S., Fujimori, H., Furukawa, S. and Ohriuma, S., J. Magn. Magn. Mater., 144 (1995) 429 Google Scholar
12. Khan, H.R., Frey, H. and Banhart, H. Nuclear Instruments and Methods in Physics, Research B 112 (1996) 289–293 Google Scholar