Investigates changes in the cerium electronic state due to hydrogen absorption in CeFe11Ti, suggesting significant structural and magnetic implications.
We present a combined X-Ray Absorption Spectroscopy (XAS) and X-Ray Circular Magnetic Dichroism (XCMD) study performed on the CeFe-11TiHx systems. Looking at the changes of the local structure around the metal atoms by EXAFS (Extended X-Ray Absorption Fine structure), the crystallographic position occupied by hydrogen in these compounds has been inferred. Moreover, the influence of hydrogen into the intermediate-valence state of Ce and the electronic localization is discussed. Both XAS and XCMD results evidence the strong correlation between the structural and magnetic changes associated with the modification of the hybridization between the Fe(3d) and Ce(5d) bands.
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F. et al. (1994) studied this question.
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