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Magnetic Phase Transitions in Epitaxial Fe/Cr Superlattices

Published online by Cambridge University Press:  15 February 2011

Eric E. Fullerton ,
K. T. Riggs ,
C. H. Sowers ,
A. Berger  and
S. D. Bader
Eric E. Fullerton
Affiliation:
Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA
K. T. Riggs
Affiliation:
Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA
C. H. Sowers
Affiliation:
Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA
A. Berger
Affiliation:
Department of Physics and Institute of Surface and Interface Science, University of California-Irvine, Irvine, CA 92717
S. D. Bader
Affiliation:
Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA
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Abstract

The surface spin-flop and Néel transitions are examined in Fe/Cr superlattices. The surface spin-flop, originally predicted by Mills [Phys. Rev. Lett. 20, 18 (1968)], is observed in Fe/Cr(211) superlattices with antiferromagnetic interlayer coupling and uniaxial in-plane anisotropy. The Néel transition (TN) of Cr is observed in Fe/Cr(001) superlattices, for which the onset of antiferromagnetism is at a thickness tCr of 42Å. The bulk value of TN is approached asymptotically as tCr increases and is characterized by a three-dimensional shift exponent. These TN results are attributed to finite-size effects and spin-frustration near rough Fe-Cr interfaces.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 384: Symposium L – Magnetic Ultrathin films, Multilayers and Surfaces , 1995 , 145
Copyright
Copyright © Materials Research Society 1995

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References

REFERENCES

1. Grünberg, P., Schreiber, R., Pang, Y., Brodsky, M. B., and Sowers, C. H., Phys. Rev. Lett. 57, 2442 (1986).Google Scholar
2. Parkin, S. S. P., More, N., and Roche, K. P., Phys. Rev. Lett. 64, 2304 (1990).Google Scholar
3. Baibich, M. N., Broto, J. M., Fert, A., VanDau, F. N., Petroff, F., Etienne, P., Creuzet, G., Friederich, A., and Chazelas, J., Phys. Rev. Lett. 61, 2472 (1988).Google Scholar
4. Wang, R. W., Mills, D. L., Fullerton, E. E., Mattson, J. E., and Bader, S. D., Phys. Rev. Lett. 72, 920 (1994).Google Scholar
5. Mills, D. L., Phys. Rev. Lett. 20, 18 (1968).Google Scholar
6. Fullerton, E. E., Conover, M. J., Mattson, J. E., Sowers, C. H., and Bader, S. D., Phys. Rev. B 48, 15755 (1993).Google Scholar
7. Wang, R. W. and Mills, D. L., Phys. Rev. B (1994).Google Scholar
8. Carrico, A. S., Camley, R. E., and Stamps, R. L., Phys. Rev. B 50, 13453 (1994).Google Scholar
9. Keffer, F. and Chow, H., Phys. Rev. Lett. 31, 1061 (1973).Google Scholar
10. Zak, J., Moog, E. R., Liu, C., and Bader, S. D., Phys. Rev. B 43, 6423 (1991).Google Scholar
11. Fawcett, E., Reviews of Modern Physics 60, 209 (1988).Google Scholar
12. Unguris, J., Celotta, R. J., and Pierce, D. T., Phys. Rev. Lett. 67, 140 (1991).Google Scholar
13. Pierce, D. T., Stroscio, J. A., Unguris, J., and Celotta, R. J., Phys. Rev. B 49, 14564 (1994).Google Scholar
14. Purcell, S. T., Folkerts, W., Johnson, M. T., McGee, N. W. E., Jager, K., Stegge, J. ann de, Seper, W. B., Hoving, W., and Grünberg, P., Phys. Rev. Lett. 67, 903 (1991).Google Scholar
15. Koelling, D. D., Phys. Rev. B 50, 273 (1994).Google Scholar
16. Slonczewski, J. C., Phys. Rev. Lett. 67, 3172 (1991).Google Scholar
17. Slonczewski, J. C., J. Magn. Magn. Mater. (in press).Google Scholar
18. Fawcett, E., Alberts, H. L., Galkin, V. Y., Noakes, D. R., and Yakhmi, J. V., Reviews of Modem Physics 66, 25 (1994).Google Scholar
19. Mattson, J., Brumitt, B., Brodsky, M. B., and Ketterson, J. B., J. Appl. Phys. 67, 4889 (1990).Google Scholar
20. Bader, S. D., Li, D., and Qiu, Z. Q., J. Appl. Phys. 76, 6419 (1994).Google Scholar
21. Adenwalla, S., Felcher, G. P., Fullerton, E. E., and Bader, S. D., unpublished.Google Scholar
22. Binder, K., in Phase Transitions and Critical Phenomena, edited by Domb, C. & Lebowitz, J. L. (Academic Press, London, 1983), p. 1.Google Scholar
23. Chen, K., Ferrenberg, A. M., and Landau, D. P., Phys. Rev. B 48, 3249 (1993).Google Scholar
24. Ferrenberg, A. M. and Landau, D. P., Phys. Rev. B 44, 5081 (1991).Google Scholar
25. Unguris, J., Celotta, R. J., and Pierce, D. T., Phys. Rev. Lett. 69, 1125 (1992).Google Scholar
26. Stoeffler, D. and Gautier, F. in Magnetism and Structure in Systems of Reduced Dimension, edited by Dieny, B. Farrow, R. F. C. Donath, M., Fert, A., Hermsmeier, B. D. (Plenum Press, New York, 1993), p. 411.Google Scholar
27. Stoeffler, D. and Gautier, F., Phys. Rev. B 44, 10389 (1991).Google Scholar
28. Stoeffler, D. and Gautier, F., J. Magn. Magn. Mat. (submitted).Google Scholar