X-ray absorption spectroscopy reveals changes in electronic and magnetic properties in intermetallic compounds, suggesting new insights into rare-earth behaviors.
We present an x-ray absorption spectroscopy (XAS) investigation performed at the L-edges of the rare-earth and the K-edge of iron in the R-Fe intermetallic compounds (La,Ce)2Fe14BH\ Ce2Fe17(H,N,)\χ, to elucidate the role of the interstitial doping into the electronic and magnetic properties of these systems. Comparison with x-ray circular magnetic dichroism (XCMD) experiments has been carried out to clarify the localization of 4f magnetic moment at the Ce sites upon hydriding. Both XAS and XCMD results evidence the interplay between the structural and magnetic changes, that are associated to the modification of the hybridization between the Fe(3d) and Ce(5d) bands.
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L. et al. (1995) studied this question.
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