| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10653571 | Solid State Communications | 2005 | 5 Pages |
Abstract
The hydrogen absorption properties of CeMnGe, CeFeSi and CeCoX (X=Si and Ge) have been investigated. Neutron powder diffraction performed on deuteride CeCoGeD indicates that D-atoms are inserted in the pseudo-tetrahedral interstices [Ce4] of the tetragonal CeFeSi-type structure of this compound. Magnetization and electrical resistivity measurements reveal that the hydrogenation of: (i) CeCoSi and CeCoGe leads to the transition antiferromagnetâspin fluctuation behaviour; (ii) CeMnGe suppress the magnetic ordering of the Ce-moments. These results which suggest a lost of ordered magnetic moment on the Ce site after hydrogenation could result from the chemical effect of hydrogen which prevails over the unit cell expansion effect.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
B. Chevalier, M. Pasturel, J.-L. Bobet, O. Isnard,