Magnetic X-ray scattering study of Interfacial Magnetism in a Gd-Y superlattice.

The modulation in the magnetic moment and in the interplanar spacing (strain) in the superlattice [Gd(21)Y(21)]X40 has been determined using synchrotron and rotating anode X-ray sources. The average moment appears to decrease in the interfacial regions, and the width of the strain interface increases with decreasing temperature.