Determination of Spin-Dependent Scattering Parameters of NiFe/Cu and Co/Cu Multilayers


We present magnetoresistance (MR) data of high-vacuum magnetron sputtered NiFe/Cu multilayers (NiFe=Ni80Fe20) grown on Si(100) substrates with a Cu buffer layer and compare these with earlier results on Co/Cu(100) multilayers [1]. Measured MR values are directly proportional to the antiferromagnetically coupled fraction in the multilayers. Extrapolating to full antiparallel alignment, we can make a reliable comparison of the MR with the magnetoresistance model of Levy, Zhang, and Fert [2,3]. For the NiFe/Cu multilayers the deduced spin-asymmetry parameters are \(\alpha _i^{\text{NiFe/Cu}} = 5.0 \pm 0.4\) and \(\alpha _b^{\text{NiFe}} = 2.1 \pm 0.3\) for interface and bulk scattering, respectively. Although much smaller than in our Co/Cu multilayers, where \(\beta _i^{Co/Cu} = 21 + 3\) and \(\alpha _b^{Co} = 2.6 + 0.3\), it is still the spin dependence of the interface scattering that is the main cause for the large MR values.

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  1. [1]

    E. Y. Chen, A. V. Pohm, J. M. Daughton, J. Brown and W. C. Black, ffiEE Trans. Mag. 30, 3816 (1994).

    CAS  Article  Google Scholar 

  2. [2]

    S. K. J. Lenczowski, M. A. M. Gijs, J. B. Giesbers, R. J. M. van de Veerdonk, and W. J. M. de Jonge, Phys. Rev. B 50, 9982 (1994).

    CAS  Article  Google Scholar 

  3. [3]

    P. M. Levy, S. Zhang, and A. Fert, Phys. Rev. Lett. 65, 1643 (1990).

    CAS  Article  Google Scholar 

  4. [4]

    S. Zhang, P. M. Levy, and A. Fert, Phys. Rev. B 45, 8689 (1992).

  5. [5]

    Proceedings of the International Symposium on Magnetic Ultrathin Films, Multilayers and Surfaces, 7–10 September 1992, Lyon [J. Magn. Magn. Mater. 121(1–3) (1993)].

  6. [6]

    Magnetic Ultrathin Films: Multilayers and Surfaces, Interfaces and Characterization, MRS Symposium Proceedings Volume 313 edited by B. T. Jonker et al. (Materials Research Society, Pittsburgh, 1993).

  7. [7]

    Proceedings of the MMM Conference, 15–19 November 1993, Minneapolis [J. Appl. Phys. 75(10-II) (1994)].

    Google Scholar 

  8. [8]

    J. A. C. Bland and B. Heinrich, eds., Ultrathin Magnetic Structures I and II (Springer, Berlin Heidelberg, 1994).

    CAS  Article  Google Scholar 

  9. [9]

    R. E. Camley and J. Barnaś, Phys. Rev. Lett. 63, 664 (1989).

    Article  Google Scholar 

  10. [10]

    A. Barthélémy and A. Fert, Phys. Rev. B 43, 13124 (1991).

    CAS  Article  Google Scholar 

  11. [11]

    B. L. Johnson and R. E. Camley, Phys. Rev. B 44, 9997 (1991).

    CAS  Article  Google Scholar 

  12. [12]

    B. Dieny, Europhys. Lett. 17, 261 (1992).

    Article  Google Scholar 

  13. [13]

    B. Dieny, J. Phys. Condens. Matter 4, 8009 (1992).

    CAS  Article  Google Scholar 

  14. [14]

    T. G. S. M. Rijks, R. Coehoorn, and W. J. M. de Jonge, Mat. Res. Soc. Symp. Proc. Vol. 313, 283 (1993).

    CAS  Article  Google Scholar 

  15. [15]

    L. M. Falicov and R. Q. Hood, J. Magn. Magn. Mater. 121, 362 (1993).

    CAS  Article  Google Scholar 

  16. [16]

    J. L. Duvail, A. Fert, L. G. Pereira, and D. K. Lottis, J. Appl. Phys. 75, 7070 (1994).

    Google Scholar 

  17. [17]

    B. Dieny, V. S. Speriosu, J. P. Nozières, B. A. Gurney, A. Vedyayev, and N. Ryzhanova, in Magnetism and Structure in Systems of Reduced Dimension, Vol. 309 of NATO Advanced Study Institute, Series B: Physics edited by R. F. C. Farrow et al. (Plenum, New York, 1993), p. 279.

    CAS  Article  Google Scholar 

  18. [18]

    M. A. M. Gijs and M. Okada, Phys. Rev. B 46, 2908 (1992).

    CAS  Article  Google Scholar 

  19. [19]

    M. A. M. Gijs and M. Okada, J. Magn. Magn. Mater. 113, 105 (1992).

    CAS  Article  Google Scholar 

  20. [20]

    S. S. P. Parkin, Appl. Phys. Lett. 61, 1358 (1992).

    CAS  Article  Google Scholar 

  21. [21]

    V. S. Speriosu, J. P. Nozières, B. A. Gurney, B. Dieny, T. C. Huang, and H. Lefakis, Phys. Rev. B 47, 11579 (1993).

    CAS  Article  Google Scholar 

  22. [22]

    Q. Yang, P. Holody, R. Loloee, L. L. Henry, W. P. Pratt, Jr., P. A. Schroeder, and J. Bass, Phys. Rev. B 51, 3226 (1995).

    CAS  Article  Google Scholar 

  23. [23]

    P. A. Schroeder, J. Bass, P. Holody, S.-F. Lee, R. Loloee, W. P. Pratt, Jr., and Q. Yang, Mat. Res. Soc. Symp. Proc. Vol. 313, 47 (1993).

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Lenczowski, S., Gijs, M., van de Veerdonk, R. et al. Determination of Spin-Dependent Scattering Parameters of NiFe/Cu and Co/Cu Multilayers. MRS Online Proceedings Library 384, 341–346 (1995).

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