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Annealed Cu/Co/Cu/NïFe/Femn Spin Valves: Nanostructure and Magnetism

Published online by Cambridge University Press:  03 September 2012

C. Meny ,
J.P. Jay ,
P. Panissod ,
P. Humbert ,
V.S. Speriosu ,
H. Lefakis ,
J.P. Nozieres  and
B.A. Gurney
C. Meny
Affiliation:
IPCMS, UMR 46 CNRS, 4 rue Blaise Pascal, 67070 Strasbourg, France
J.P. Jay
Affiliation:
IPCMS, UMR 46 CNRS, 4 rue Blaise Pascal, 67070 Strasbourg, France
P. Panissod
Affiliation:
IPCMS, UMR 46 CNRS, 4 rue Blaise Pascal, 67070 Strasbourg, France
P. Humbert
Affiliation:
IPCMS, UMR 46 CNRS, 4 rue Blaise Pascal, 67070 Strasbourg, France
V.S. Speriosu
Affiliation:
IBM Research Division, Almadén Research Center, 650 Harry Road, San Jose, CA 95120–6099, USA
H. Lefakis
Affiliation:
IBM Research Division, Almadén Research Center, 650 Harry Road, San Jose, CA 95120–6099, USA
J.P. Nozieres
Affiliation:
IBM Research Division, Almadén Research Center, 650 Harry Road, San Jose, CA 95120–6099, USA
B.A. Gurney
Affiliation:
IBM Research Division, Almadén Research Center, 650 Harry Road, San Jose, CA 95120–6099, USA
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Abstract

Magnetic, Magnetotransport and structural properties of Cu/Co/Cu/NiFe/Femn spin-valve structures were studied before and after sequential annealing in the temperature range 240–360°C. Since no extended interdiffusion is observed, the overall deterioration of the magnetic and magnetoresistive properties of the spin valve is believed to originate from morphological and structural changes. In particular, annealing was found to decrease the magnetoresistive properties of Co as a result of structural changes within the Co layer and at the CO/Cu interface. These changes are accompanied by modifications of the magnetic properties. For annealing temperatures above 240°C, strong grain growth within the Co layer and increasing amount of fee Co explain the increased magnetic hardness of this layer.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 313: Symposium Q1 – Magnetic Ultrathin Films, Multilayers and Surfaces/Magnetic Interfaces-Physics and Characterizations , 1993 , 289
Copyright
Copyright © Materials Research Society 1993

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References

REFERENCES

1. Binasch, G., Grünberg, P., Saurenbach, F. and Zinn, W., Phys. Rev. B, 39, 4828 (1989).Google Scholar
2. Baibich, M.N., Broto, J.M., Fert, A., Nguyen Van Dau, F., Petroff, F., Etienne, P., Creuzet, G., Friederich, A. and Chazelas, J., Phys. Rev. Lett., 61, 2472 (1988).Google Scholar
3. Dieny, B., Speriosu, V.S., Parkin, S.S.P., Gurney, B.A., Wilhoit, D.R. and Mauri, D., Phys. Rev. B, 43, 1297 (1991).Google Scholar
4. Dieny, B., Humbert, P., Speriosu, V.S., Metin, S., Gurney, B.A., Baumgart, P. and Lefakis, H., Phys. Rev. B., 45, 806 (1992).Google Scholar
5. Camley, R.E. and Barnás, J., Phys. Rev. Lett., 63, 664 (1989).Google Scholar
6. Levy, P.M., Zhang, S. and Fert, A., Phys. Rev. Lett., 65, 1643 (1990).Google Scholar
7. Dieny, B., Speriosu, V.S., Nozières, J.P., Gurney, B.A. and Wilhoit, D.R., submitted to J. Mag. Mag. Mat., (1992).Google Scholar
8. Petroff, F., Barthélé, A., Hamzic, A., Fert, A., Etienne, P., Lequien, S. and Creuzet, G., J. Mag. Mag. Mat., 93, 95 (1991).Google Scholar
9. Fullerton, E.E., Kelly, D.M., Guimpel, J., Schuller, I.K. and Bruynseraede, Y., Phys. Rev. Lett., 68, 859 (1992).Google Scholar
10. to be published.Google Scholar
11. Huang, T.C., Nozières, J.P., Speriosu, V.S., Lefakis, H. and Gurney, B.A., Appl. Phys. Lett., 60, 1573 (1992).Google Scholar
12. Nozières, J.P., Speriosu, V.S., Gurney, B.A., Huang, T.C., Geiss, R.H. and Lefakis, H., to be published.Google Scholar
13. Speriosu, V.S., Nozières, J.P., Gurney, B.A., Dieny, B., Huang, T.C. and Lefakis, H., accepted in Phys. Rev. B, Rap. Comm., (1993).Google Scholar
14. Nozières, J.P., Speriosu, V.S., Gurney, B.A., Dieny, B., Lefakis, H. and Huang, T.C., to be published.Google Scholar
15. Huang, T.C., Nozières, J.P., Speriosu, V.S., Gurney, B.A. and Lefakis, H., Appl. Phys. Lett., April (1993).Google Scholar
16. Meny, C., Panissod, P., Humbert, P., Nozières, J.P., Speriosu, V.S., Gurney, B.A. and Zehringer, R., J. Mag. Mag. Mat., 121, 406 (1993).Google Scholar
17. Schneider, C.M., Bressler, P., Schuster, P., Kirschner, J., de Miguel, J.J. and Miranda, R., Phys. Rev. Lett., 64, 1059 (1990).Google Scholar
18. Parkin, S.S.P. et al., submitted to Phys. Rev. Lett‥Google Scholar
19. Carter, G.C., Bennett, L.H. and Kahan, D.J., Metallic Shifts in NMR. Progress in Materials Science Vol. 20 (Pergamon Press, Oxford, 1977), Part II p. 966; Part III p. 1648.Google Scholar