| Numéro |
J. Phys. IV France
Volume 7, Numéro C2, Avril 1997
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
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| Page(s) | C2-439 - C2-440 | |
| DOI | https://doi.org/10.1051/jp4/1997041 | |
J. Phys. IV France 7 (1997) C2-439-C2-440
DOI: 10.1051/jp4/1997041
Magnetic Circular X-Ray Dichroism at the Ce LII,III Edges in Ferromagnetic Iron Based Intei metallic
O. Isnard1, S. Miraglia1, Ch. Giorgetti2, F. Baudelet2, E. Dartyge2, G. Krill2 and D. Fruchart11 Laboratoire de Cristallographie, CNRS, BP. 166X, Université Joseph Fourier, 38042 Grenoble France
2 Laboratoire LURE, bâtiment 209d, Université Paris Sud, 91405 Orsay, France
Abstract
Measurements of magnetic circular dichroism (MCXD) at the Ce LII and LIII edges have been performed from
CeFe11Ti and CeFe5.5Ga6.5 both ferromagnetic compounds. The recorded MCXD signal is presented and compared to earlier
reported results [1] on other intermetallic. A significant magnetic moment of 5d origin has been observed, the magnitude of which
being very sensitive to the change in the Ce environment. An estimation of the 5d magnetic moment is derived from the
measurements. The observed MCXD signal is discussed at the light of macroscopic magnetic properties that are reminded. A
magnetic EXAFS of large amplitude is observed on all the studied compound. The comparison of the MCXD spectra at the LII and
LIII edges shows that the signal is typical of a mixed valence state of Ce.
© EDP Sciences 1997