Hostname: page-component-78c5997874-4rdpn Total loading time: 0 Render date: 2024-11-20T04:52:21.619Z Has data issue: false hasContentIssue false
  • English
  • Français

Magnetic Properties of Multilayered Co-Cu Granular Composites

Published online by Cambridge University Press:  15 February 2011

A. Cabbibo ,
J.A. Caballero ,
Y.D. Park  and
J.R. Childress
A. Cabbibo
Affiliation:
Department of Materials Science and Engineering, University of Florida Gainesville, Florida 32611
J.A. Caballero
Affiliation:
Department of Materials Science and Engineering, University of Florida Gainesville, Florida 32611
Y.D. Park
Affiliation:
Department of Materials Science and Engineering, University of Florida Gainesville, Florida 32611
J.R. Childress
Affiliation:
Department of Materials Science and Engineering, University of Florida Gainesville, Florida 32611
Get access

Abstract

The magnetic properties of granular CO25Cu75/CU multilayer films prepared by sputtering onto heated glass substrates have been investigated in the range of ultrathin alloy films (5–250Á) and Cu spacer thicknesses (0–50Å). Both the coercive field at 10K and the maximum superparamagnetic blocking temperature TB are found to be sensitive to finite-size effects in single-layer films, and to interactions between layers in multilayer films. Our results indicate that the magnetic properties of granular alloy layers can be engineered to a large extent by selectively modifying the local environment of the Co particles.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 475: Symposium M – Magnetic Ultrathin Films, Multilayers, and Surfaces – 1997 , 1997 , 357
Copyright
Copyright © Materials Research Society 1997

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Childress, J.R., Chien, C.L. and Nathan, M., Appl. Phys. Lett. 56, (1990) 95.Google Scholar
2. Childress, J.R. and Chien, C.L., J. Appl. Phys. 70 (1991) 5885.Google Scholar
3. Liou, S.H., Malhotra, S., Shan, Z., Sellymyer, D. J., Nafis, S., Woolam, J. A., Reed, C.P., DeAngelis, R.J., Chow, G.M., J. Appl. Phys. 70, (1991) 5887.Google Scholar
4. Berkowitz, A.E., Mitchell, J.R., Carey, M.J., Young, A.P., Zhang, S., Spada, F.E., Parker, F.T., Hutten, A., and Thomas, G., Phys. Rev. B 68, (1992) 3745.Google Scholar
5. Xiao, J. Q., Jiang, J.S., and Chien, C.L., Phys. Rev. B 68, (1992) 3749.Google Scholar
6. Zhang, S. and Levy, P.M., J. Appl. Phys. 73, (1993) 5315.Google Scholar
7. Coffey, K.R., Hylton, T.L., Parker, M. A., and Howard, J.K., Appl. Phys. Lett. 63, (1993) 1579.Google Scholar
8. Iijima, M., Shimizu, Y., Kojima, N., Tanaka, A., and Kobayashi, K., J. Appl. Phys. 79, (1996) 5602.Google Scholar
9. Hylton, T. L., Coffey, K. R., Parker, M. A., and Howard, J. K., Science, 261, (1993) 1021.Google Scholar
10. Holody, P., Steren, L. B., Morel, R., Fert, A., Loloee, R., and Schroeder, P. A., Phys. Rev. B 50 (1994) 12999.Google Scholar