T.R. McGuire, T.S. Plaskett, et al.
IEEE Transactions on Magnetics
Granular films of Cu (Co) with Co concentrations from 5.4% to 12% in the as-deposited form had magnetization showing about 60% of the Co as ferromagnetic particles and exhibited giant magnetoresistance (MR) of about 20% at 4.2 K. Annealing at ∼310°C increased the MR to 40% and also increased the saturation magnetization indicating additional Co precipitation. At higher annealing temperatures MR decreased to 1%. The Zhang theoretical model involving polarized conduction electron scattering at particle interfaces seems to give a reasonable description of our results including the quadratic behavior of MR vs [M(H)]2 and MR vs [Ms(T)]2.
T.R. McGuire, T.S. Plaskett, et al.
IEEE Transactions on Magnetics
V. Svilan, K.P. Rodbell, et al.
MRS Spring Meeting 1996
J.A. Aboaf, T.R. McGuire, et al.
IEEE Transactions on Magnetics
T.R. McGuire, J.A. Aboaf, et al.
IEEE Transactions on Magnetics