Abstract

We have shown that, in contrast to theresults in the literature, the Bragg peak intensity ofNi80Fe20/Cu superlattices is enhanced at the incident x-rayenergy slightly higher than the absorption edge of the heavier element(Cu). The atomic density at Ni80Fe20/Cu interface was analysedby the diffraction anomalous fine structure technology with the incidentangle of x-ray fixed at the first Bragg peak. Our results demonstrate theepitaxy growth of Ni80Fe20/Cu superlattices. Upon annealing, theepitaxity of Ni80Fe20/Cu multilayers becomes poor but the localcrystallinity in each layer is improved.

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