Abstract

We report on the measurement of a Magnetic X‐ray Standing Wave in the hard X‐ray range which is the most interesting energy range for diffraction‐like experiment. X‐ray standing waves produced by a Bragg interference combined with element and orbital selectivity of magnetic circular dichroism have been measured at the L edges of Pt diluted in a Ni90Pt10 crystal. By comparing with XMCD experiments done on the same sample, our result suggest that there is two different magnetic type of Pt atoms. These results demonstrate the capability to directly probe the magnetic properties of dilute impurities located in bulk 3d metals and suggest a broad applicability of such standing wave measurements in the hard x‐ray range to site‐selective study of magnetic properties in systems lacking long‐range order.

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