Abstract
The observation of giant magnetoresistance (GMR) in sputtered FeAg multilayers is reported. The maximum GMR reaches −7.3% at 1.5 K. The amplitude of the GMR oscillates with variations in Ag thickness; the oscillation period is about 11 Å. An anomaly in the temperature dependence of the saturation field was also observed and is discussed in terms of the interface superparamagnetic state.
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