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Orientational Dependence of Oscillatory Exchange Coupling

  • M.T. Johnson (a1), P.J.H. Bloemen (a2), R. Coehoorn (a1), J.J. de Vries (a2), N.W.E. McGee (a1), W. R. Jungblut (a1), A. Reinders (a1) and J. aan de Stegge (a1)...

Abstract

The role of the interlayer Fermi surface in driving oscillatory exchange coupling of ferromagnetic layers has been critically tested in a series of MBE-grown coherent epitaxial sandwiches prepared on single-crystal substrates. The wedge-shaped Cu (or Cu-based) interlayers have been modified in a number of different ways, achieving orientational, compositional and structural alteration of the Cu Fermi surface. Observed phenomena include multiperiodic coupling oscillations in both the ferromagnetically and antiferromagnetically coupled regions of (lOO) -oriented Co/Cu/Co samples, extended oscillatory periods across CuNi alloy interlayers, and extremely short-period oscillations in a bcc (100) Fe/Cu/Fe system. These phenomena are straightforwardly explained in terms of calculated Fermi surface variations.

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[1] Parkin, S. S. P., Bhadra, R., and Roche, K. P., Phys. Rev. Lett. 66, 2152 (1991).
[2] Mosca, D. H., Petroff, F., Fert, A., Schroeder, P. A., Pratt, W. P. Jr, and Loloee, R., J. Magn. Magn. Mater. 94, L1 (1991).
[3] Parkin, S. S. P., Phys. Rev. Lett. 67, 3598 (1991).
[4] Bennett, W. R., Schwarzacher, W., and Egelhoff, W. F. Jr, Phys. Rev. Lett. 65, 3169 (1990).
[5] Coehoom, R., Phys. Rev. B 44, 9331 (1991);
Chappert, C. and Renard, J. P., Europhys. Lett. 15, 553 (1991);
Deaven, D. M., Rokhsar, D. S., and Johnson, M., Phys. Rev. B 44, 5977 (1991).
[6] An orientational and structural dependence of the exchange coupling was also predicted from ab initio band structure calculations for a variety of systems containing Cu interlayers: see Herman, F., Sticht, J., and van Schilfgaarde, M., Mat. Res. Soc. Symp. Proc. 231, 195 (1992).
[7] Bruno, P. and Chappert, C., Phys. Rev. Lett. 67, 1602 (1991).
[8] Petroff, F., Barthélé, A., Mosca, D. H., Lottis, D. K., Fert, A., Schroeder, P. A., Pratt, W. P. Jr, Loloee, R., and Lequien, S., Phys. Rev. B 44, 5355 (1991).
[9] Edwards, D. M., Mathon, J., Muniz, R.B., and Phan, M.S., Phys. Rev. Lett. 67, 493, (1991).
[10] Johnson, M. T., Purcell, S. T., McGee, N. W. E., Coehoorn, R., aan de Stegge, J., and Hoving, W., Phys. Rev. Lett. 68, 2688 (1992).
[11] Bloemen, P. J. H., van Dalen, R., de Jonge, W. J. M., Johnson, M. T., and aan de Stegge, J., Short period oscillation of the interlayer exchange coupling in the ferromagnetic regime in Co/Cu/Co (100), Proceedings of the MMM conference, Houston, 1992 (to be published in J. Appl. Phys.).
[12] Johnson, M. T., Coehoorn, R., de Vries, J. J., McGee, N.W. E. aan de Stegge, J., and Bloemen, P. J. H., Phys. Rev. Lett. 69, 969 (1992).
[13] Bloemen, P. J. H., Johnson, M. T., aan de Stegge, J., and de Jonge, W. J. M., J. Magn. Magn. Mater 116, L315 (1992).
[14] Parkin, S. S. P. and Mauri, D., Phys. Rev. B 44, 7131 (1991).
[15] Fert, A., Bartélé, A., Etienne, P., Lequin, S., Laloee, R., Lottis, D. K., Mosca, D. H., Petroff, F., Pratt, W. P., and Schroeder, P. A., J. Magn. Magn. Mater. 104–107, 1712 (1992).
[16] Bloemen, P. J. H., de Jonge, W. J. M., and Donkersloot, H. C., Determination of the ferromagnetic coupling across Pd by Magneto-atomic engineering, J. Appl. Phys. (accepted).
[17] Fuβ, A., Demokritov, S., Grünberg, P., and Zinn, W., J. Magn. Magn. Mater. 103, L221 (1992).
[18] Unguris, J., Celotta, R. J., and Pierce, D. T., Oscillatory Magnetic coupling in Fe/Ag/Fe (100) sandwich structures, (submitted).
[19] Okuno, S. N., Inomata, K., and Saito, Y., 16th Annual Conference on magnetics in Japan, digest 7pC-7, p 52 (1992).
[20] Egelhoff, W. F. Jr, and Kief, M. T., Phys. Rev. B 45, 7795 (1992).
[21] Schreyer, A., Brohl, K., Ankner, J. F., Zeidler, Th., Bodeker, P., Metoki, N., Majkrzak, C. F., and Zabel, H., Oscillatory exchange coupling in Co/Cu (111) superlattices, (submitted).
[22] Bruno, P. and Chappert, C., Phys. Rev. B 46, 261 (1992),
Bruno, P., J. Magn. Magn. Mater. 116, 213 (1992).
[23] den Broeder, F.J.A., Janssen, E., Hoving, W., and Zeper, W.B., IEEE Trans. Mag. 28, 2760 (1992).
[24] Jungblut, R. et al. (unpublished)
[25] Heinrich, B., Celiński, Z., Cochran, J. F., Muir, W. B., Rudd, J., Zhong, Q. M., Arrott, A. S., Myrtle, K., and Kirschner, J., Phys. Rev. Lett. 64, 673 (1990).
[26] Herman, F., Sticht, J., and van Schilfgaarde, M., J. Appl. Phys. 69, 4783 (1991).

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