ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We report the observation of the GMR effect in spinodally decomposed Cu–20Ni–20Fe thin films. A ΔR/R value as high as 6.5% was observed at room temperature. In contrast to the commonly observed temperature-dependent behavior of ΔR/R increasing at low temperature; thin film shows a decrease in ΔR/R at 4.2 K. The dependence of the GMR effect on various deposition parameters, such as substrate temperature has been studied. The observed giant magnetoresistance behavior in Cu–20Ni–20Fe films is most likely related to the field-induced decrease in electron scattering in a pseudosuperparamagnetic material, as well as the spin-dependent scattering at the two-phase interface and in the ferromagnetic phase.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.358138