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The magnetic and structural properties of Fe/Si Fe/Fe33Si66 and Co/Si multilayers have been studied. Very strong AF coupling J=-1.93 mJ/m2 accompanied by saturation field of 1.5T has been found for dSi=1.4nm. The CEMS spectra recorded at room temperature consist of the Zeeman sextet characteristic of the pure Fe phase accompanied by two spectral components related to FeSi system: magnetic broad sextet and a quadrupole doublet. The broad sextet could originate from various Fe sites at the interface. The nonmagnetic QS doublet is most probably associated with the nonstoichiometric c-Fe1-xSix phase. Comparing the results obtained for Fe/Si and Fe/Fe33Si66 multilayers we conclude that the exchange coupling is distinctly stronger for nominally pure spacer layer. For Co/Si multilayers a very weak antiferromagnetic coupling and oscillatory FAF(dSi) behavior was observed most probably due to the Co-Si nonmagnetic metallic phases formation replacing the nominally pure Si spacer layers. We have shown that AF coupled Fe/Si multilayers can be successfully applied as an antiferromagnet in the magnetoresistive (Fe/Si)15/Fe/Co1/Cu/Co2 system.
Słowa kluczowe
Czasopismo
Rocznik
Tom
Strony
25--37
Opis fizyczny
Bibliogr. 11 poz.
Twórcy
autor
- Institute of Molecular Physics, Polish Academy of Sciences, Poznań, Poland
- Faculty of Physics, University of Bielefeld, Bielefeld, Germany
autor
- Institute of Electronic Materials Technology, Warsaw, Poland
autor
- Faculty of Physics, University of Bielefeld, Bielefeld, Germany
autor
- Faculty of Physics, University of Bielefeld, Bielefeld, Germany
autor
- Faculty of Physics, University of Bielefeld, Bielefeld, Germany
autor
- Faculty of Physics, University of Bielefeld, Bielefeld, Germany
- Institute of Molecular Physics, Polish Academy of Sciences, Poznań, Poland
Bibliografia
- [1] Gareev R.R., Burgler D.E., Buchmeyer M., Olligs D., Schreibe rR., Grunberg P., Phys. Rev. Lett., 87, (2001), 157202.
- [2] Gareev R.R., Burgler D.E., Buchmeyer M., Schreiber R., Grunberg P., J. Magn. Magn. Mater., 240 (2002), 235.
- [3] Inomata K., Saito Y., J. Appl. Phys., 81 (1997), 5344.
- [4] Grundy P.J., Fallon J.M., Blythe H.J., Phys. Rev., B62, 9566 (2000).
- [5] Fallon J.M., Faunce C.A., Grundy P.J., J. Appl. Phys., 88, 2400 (2000).
- [6] Fullerton E.E., Matson J.E., Lee S.R., Sowers C.H., Huang Y.Y., Felcher G., Bader S.D., Parker F.T., J. Magn. Magn. Mater., 117 (1992), L301.
- [7] Chiken A., Michel R.P., Wall M.A., Phys. Rev., B 48 (1996), 5518.
- [8] Dufour C., Bruson A., Mrchal G., George B., Mangin Ph., J. Magn. Magn. Mater., 93 (1991), 545.
- [9] Strijkers G.J., Kohlhepp J.T., Swagten H.J.M., de Jonge W.J.M., Phys. Rev., B 60 (1999), 9583.
- [10] Helgason O., Sifusson T.I., Hyperfine Interact., 45 (1989), 415.
- [11] Milosavlievic M., Dhr S., Schiaa F P., Blbic N., Huang Y.-L., Steibt M., Lieb K.P., J. Appl. Phys., 90 (2001), 4474.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPW7-0005-0105