Skip to main content Accessibility help

Structural Studies and Magnetotransport Properties of Sputtered Ni/Co Multilayers

  • J.M. Freitag (a1), X. Bian (a1), Z. Altounian (a1), J.O. Ström-Olsen (a1) and R.W. Cochrane (a2)...


Ferromagnetic/ferromagnetic Ni/Co multilayers were prepared by DC-magnetron sputtering with component layer thicknesses ranging from 40 Å down to 5 Å. Structural characterizations by x-ray diffractometry show a well-defined compositional modulation along the film growth direction and a preferred (111) crystalline orientation. A longitudinal magnetoresistance ΔR/R over 2.7% with a sensitivity of ~0.11%/Oe was measured at room temperature in small fields less than 20 Oe. The highest room temperature sensitivity obtained in this system was 0.16%/Oe. Magnetoresistive sensitivity was found to vary inversely with the number of bilayers in the multilayers. The magnetic anisotropy of the films as determined by MOKE magnetometry is correlated to the magnetoresistance and indicative of an AMR effect.



Hide All
[1] Baibich, M.N., Broto, J.M., Fert, A.. Dau, F. Nguyen van, Petroff, F., Etienne, P.E., Creuzet, G., Friederich, A., and Chazelas, J., Phys. Rev. Lett. 61, 2472 (1988).
[2] Parkin, S.S., Bhadra, P., and Roche, K.P., Phys. Rev. lett. 66 2152 (1991).
[3] Berkowitz, A.E., Carey, M.J., Mitchell, J.R., Young, A.P., Zhang, S., Spada, F.E., Parker, F.T., Hutten, A., and Thomas, G., Phys. Rev. Lett. 68, 3745 (1992).
[4] Xiao, J.Q., Jiang, J.S., and Chien, C.L., Phys. Rev. Lett. 68, 3749 (1992).
[5] Gallego, J.M., Lederman, D., Moran, T.J., and Schuller, Ivan K., Appl. Phys. Lett., 64 19 (1994).
[6] McGuire, T.R. and Potter, R.I., IEEE Trans. Magn. MAG–11, 1018 (1975).
[7] Huai, Y., and Cochrane, R.W., J. Appl. Phys. 72, 2523 (1992).
[8] Agarwal, B.K., X-Ray Spectroscopy (Springer, Berlin, 1979).
[9] Parkin, S.S.P., Solid State Physics, RJ 9311 (82241), (1993).
[10] Daalderop, G.H.O., Kelly, P.J., and Broeder, F.J.A. den, Phys. Rev. Lett. 68, 682 (1992).


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed