1. P. Grünberg, R. Schreiber, Y. Pang, U. Walz, M.B. Brodsky and H. Sowers, J. Appl. Phys. 61, 3750 (1987).
2. M.N. Baibich, J.M. Broto, A. Fert, F. Nguyen van Dau, F. Petroff, P. Etienne, G. Creuzet, A. Friederich, and J. Chazelas, Phys. Rev. Lett. 61, 2472 (1988).
3. J. Barnas, A. Fuss, R.E. Camley, P. Grunberg, and W. Zinn, Phys. Rev. B42, 8110 (1990).
4. C. Dupas, P. Beauvillain, C. Chappert, J.P. Renard, F. Trigui, P. Veillet, E. Velu, and D. Renard, J. Appl. Phys. 67, 5680 (1990).
5. B. Dieny, V.S. Speriosu, S.S.P. Parkin, B.A. Gurney, D.R. Wilhoit, and D. Mauri, Phys. Rev. B43, 1297 (1991); and B. Dieny, V.S. Speriosu, S. Metin, S.S.P. Parkin, B.A. Gurney, P. Baumgart, and D.R. Wilhoit, J. Appl. Phys., to be published (1991).
6. A. Chaiken, G.A. Prinz, and J.J. Krebs, J. Appl. Phys. 67, 4892 (1990).
7. T. Shinjo and H. Yamamoto, J. Phys. Soc. Jpn. 59, 3061 (1990).
8. A. Chaiken, P. Lubitz, J.J. Krebs, G.A. Prinz, and M.Z. Harford, to be published.
9. A. Cebollada, J.L. Martinez, J.M. Gallego, J.J. de Miguel, R. Miranda, S. Ferrer, F. Batallan, G. Fillion, and J.P. Rebouillat, Phys. Rev. B39, 9726 (1989); B. Heinrich, Z. Celinski, J.F. Cochran, W.B. Muir, J. Rudd, Q.M. Zhong, A.S. Arrott, K. Myrtle, and J. Kirschner, Phys. Rev. Lett. 64, 673 (1990); W.R. Bennett, W. Schwarzacher, and W.F. Egelhoff, Jr., Phys. Rev. Lett. 65, 3169 (1990).
10. E.E. Fullerton, I.K. Schuller, F.T. Parker, M. Grimsditch, C.H. Sowers, W. Robertson, S. Kumar, Ph. Belien, and Y. Bruynseraede, J. Appl. Phys., to be published (1991).