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Giant Magnetoresistance in Iron and Cobalt Implanted Silver Thin Films

Published online by Cambridge University Press:  10 February 2011

C. M. De Jesus ,
J. G. Marques ,
J. C. Soares ,
L. M. Redondo ,
M. F. Da Silva ,
M. M. Pereira De Azevedo  and
J. B. Sousa
C. M. De Jesus
Affiliation:
CFN, Universidade de Lisboa, Av. Prof Gama Pinto, 2, P-1699 Lisboa Codex, Portugal
J. G. Marques
Affiliation:
CFN, Universidade de Lisboa, Av. Prof Gama Pinto, 2, P-1699 Lisboa Codex, Portugal
J. C. Soares
Affiliation:
CFN, Universidade de Lisboa, Av. Prof Gama Pinto, 2, P-1699 Lisboa Codex, Portugal
L. M. Redondo
Affiliation:
Instituto Tecnológico e Nuclear, Estrada Nacional 10, P-2685 Sacavém, Portugal
M. F. Da Silva
Affiliation:
Instituto Tecnológico e Nuclear, Estrada Nacional 10, P-2685 Sacavém, Portugal
M. M. Pereira De Azevedo
Affiliation:
IFIMUP, Universidade do Porto, P-4150 Porto, Portugal
J. B. Sousa
Affiliation:
IFIMUP, Universidade do Porto, P-4150 Porto, Portugal
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Abstract

The magnetoresistive behavior of granular thin films prepared by Fe and Co implantation in Ag thin films is reported. Ag thin films (∼2000Å) were implanted with Fe or Co at fluences up to 8×1016 at./cm2. The magnetoresistive response obtained after implantation was found to increase with the implanted fluence. A further increase by a factor of 3–4 can be achieved annealing the films in a conventional furnace at 620 K under vacuum. The best value of the magnetoresistance obtained so far is 9% at 10 K for a film implanted with Co at a fluence of 8×1016 at./cm2.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 504: Symposium KK – Atomistic Mechanisms in Beam Synthesis & Irradiation… , 1997 , 203
Copyright
Copyright © Materials Research Society 1998

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References

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