Crystallographic study of YFe{sub 2}D{sub 3.5} by x-ray and neutron powder diffraction
Journal Article
·
· Journal of Solid State Chemistry
- CNRS, Meudon (France)
- CEA-CNRS, Gif sur Yvette (France)
Crystallographic properties of YFe{sub 2}D{sub 3.5} deuteride have been studied by X-ray and neutron powder diffraction. At 350 K, it crystallizes in the R-3m space group (Z = 6) with a = 5.540(l) {angstrom} and c = 13.568(2) {angstrom}. The location of deuterium atoms has been achieved in the paramagnetic state (T= 350 K). YFe{sub 2} and YFe{sub 2}D{sub 3.5} are ferromagnetic but deuterium absorption decreases the Curie temperature from 560 to 345 K. At room temperature, the neutron diffraction pattern of the deuteride exhibits a sharp rhombohedral distortion which is compared to that of the ErFe{sub 2}D{sub x} compound.
- OSTI ID:
- 613721
- Journal Information:
- Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 2 Vol. 133; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
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