NMR study on the nanostructure of Co/X multilayers

This paper discusses the nanostructure and local strain of FCC C/Cu and Co/Ni multilayers studied by means of nuclear magnetic resonance. The atomic topology of the interface can be deduced from the NMR spectrum, the local stains from the shift in the hyperfine fields. The results show that the Co/Cu interface is a mixed monolayer and that the Co layers, including the interface, have uniform (tensile) strain inversely proportional to the Co thickness (within experimental error) with the proportionality constant depending on the Cu thickness. In Co/Ni the interface consists of two mixed layers and the Co layers have uniform compressive strain inversely proportional to the Co thickness