Abstract
We have measured the absorption edges of Pd in Pd/Fe multilayers with different Pd interlayer thicknesses. The spectral features observed after the and white lines indicate that in the atomic layer adjacent to Fe the Pd atoms have a local structure different from fcc. X-ray magnetic circular dichroism (XMCD) at these edges shows that the atoms directly at the interface are strongly polarized with a total moment of about 0.4 /atom. The orbital moments are found to be small (0.0–0.04 ). The thickness dependence of the XMCD shows that Pd atoms carry a magnetic moment up to four layers from the interface. The magnetic interface appears larger than the crystallographic one.
DOI:https://doi.org/10.1103/PhysRevB.55.3663
©1997 American Physical Society