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Universal mB/T Scaling of the Giant Magnetoresistance in Cu-Co Granular Ribbons Produced by Controlled Melt-Spinning

Published online by Cambridge University Press:  15 February 2011

Vicente Madurga ,
R.J. Ortega ,
J. Vergara ,
R. Elvira ,
V. Korenivski  and
K.V. Rao
Vicente Madurga
Affiliation:
Department of Physics., Universidad Pública de Navarra. Campus Arrosadía. E-31006 Pamplona., Spain
R.J. Ortega
Affiliation:
Department of Physics., Universidad Pública de Navarra. Campus Arrosadía. E-31006 Pamplona., Spain
J. Vergara
Affiliation:
Department of Physics., Universidad Pública de Navarra. Campus Arrosadía. E-31006 Pamplona., Spain
R. Elvira
Affiliation:
Department of Physics., Universidad Pública de Navarra. Campus Arrosadía. E-31006 Pamplona., Spain
V. Korenivski
Affiliation:
Department of Condensed Matter Physics. The Royal Institute of Technology. S-10044 Stockholm. Sweden
K.V. Rao
Affiliation:
Department of Condensed Matter Physics. The Royal Institute of Technology. S-10044 Stockholm. Sweden
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Abstract

Studies of the evolution of electrical resistance in an external applied magnetic field, B, as well as with temperature, T, on Cu86Co14 and Cu92Co8 as quenched and annealed melt-spun ribbons, reveal that magnetoresistance, MR, ΔR(B,T)=R(B)-R(0) scales with B/T. Furthermore, it found that annealing up to 600 °C scales the magnetic moment of the Co-rich superparamagnetic nanoparticles such that, the data for the field dependence of the MR obtained at various temperatures collapses onto the same unique and universal curve f(mB/T) with the Langevin variable mB/T governing the overall behaviour.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 384: Symposium L – Magnetic Ultrathin films, Multilayers and Surfaces , 1995 , 541
Copyright
Copyright © Materials Research Society 1995

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References

REFERENCES

1 Xiao, J.Q., Jiang, J.S. and Chien, C.L.. Phys. Rev. Lett. 68, 3749 (1992) and A.E.Berkowitz, J.R.Mitchell, M.J.Carey, A.P.Young, S.Zhang, F.E.Spada, F.T.Parker, A.Hutten and G.Thomas. Phys.Rev.Lett., 68, 3745 (1992).Google Scholar
2 Wecker, J., Helmolt, R. von, Schultz, L. and Samwer, K. Appl. Phys. Lett. 62, 1985 (1993). And B.Dieny, A.Chamberod, J.B.Genin, B.Rodmacq, S.R.Teixeira, S.Auffret, P.Gerard, O.Redon, J.Pierre, R.Ferrer and B.Barbara. J.Mag.Mag.Mater. 126, 433 (1993).Google Scholar
3 Wan, H., Tsoukatos, A., Hadjipanayis, G.C., Li, Z.G. and Liu, J.. Phys.Rev. B, 49, 1524 (1994)Google Scholar
4 Madurga, V., Ortega, R.J., Korenivski, V. and Rao, K.V.. 1994 March Meeting of the A P S. and V.Madurga, R.J.Ortega, V.Korenivski, H.Medelius and K.V.Rao. J.Mag.Mag. Mater. 140-144, 465 (1995)Google Scholar
5 Gregg, J.F., Thompson, S.M., Dawson, S.J., Ounadjela, K., Staddon, C.R., Hamman, J., Fermon, C., Saux, G. and O'Grady, K.. Phys.Rev.B. 49, 1064 (1994).Google Scholar
6 Parker, M.R., Barnard, J.A. and Waknis, J., J. Appl. Phys. 73, 5512 (1993)Google Scholar
7 Dieny, B., Teixeira, R.S., Rodmacq, B., Cowache, C., Auffret, S., Redon, O. and Pierre, J.. J.Mag.Mag.Mater. 130, 197 (1994)Google Scholar
8 Ortega, R.J., Vergara, J., Elvira, R. and Madurga, V.. 14 GCCMD of the European Physical Society. (Madrid, March 1994) and V.Madurga, R.J.Ortega, V.Korenivski and K.V.Rao. IVInternational Workshop on Non-Crystalline Solids.(Madrid, September, 1994) to appear in Nanocrystallized and Non-Crystalline Materials. edited by M.Vdizquez and A.Hernando (World Scientific Publishing Co. Pte. Ltd., London, 1995)Google Scholar
9 Wang, J.Q. and Xiao, G.. Phys. Rev. B 49, 3982 (1994)Google Scholar
10 Helmolt, R. von, Wecker, J. and Samwer, K.. Phys. Stat. Sol. (b) 182 K25 (1994)Google Scholar
11 Hickey, B.J., Howson, M.A., Musa, S.O. and Wiser, N.. Phys. Rev. B, 51, 667 (1995)Google Scholar
12 Beal-Monod, M.T. and Weiner, R.A.. Phys.Rev., 170, 552 (1968)Google Scholar
13 Seitz, F.. The Modern Theory of Solids. Dover Publications Inc. (New York, 1987).Google Scholar