| Title: |
Influence of hydrogenation on the structural and magnetic properties of compounds based on cerium and crystallizing in the tetragonal CeFeSi-type structure |
| Authors: |
Chevalier, Bernard; Pasturel, Mathieu; Bobet, Jean-Louis; Isnard, Olivier |
| Contributors: |
Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB); Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université de Bordeaux (UB); Laboratoire de Cristallographie; Centre National de la Recherche Scientifique (CNRS) |
| Source: |
ISSN: 0038-1098 ; Solid State Communications ; https://hal.archives-ouvertes.fr/hal-00022430 ; Solid State Communications, Elsevier, 2005, 134 (8), pp.529-533. ⟨10.1016/j.ssc.2005.02.040⟩. |
| Publisher Information: |
HAL CCSD; Elsevier |
| Publication Year: |
2005 |
| Collection: |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
| Subject Terms: |
Magnetically ordered materials; Valence fluctuations; PACS : 75.20.En; 75.30.Mb; 75.50.Ee; [CHIM.MATE]Chemical Sciences/Material chemistry |
| Description: |
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 antiferromagnet→spin 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. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
hal-00022430; https://hal.archives-ouvertes.fr/hal-00022430; https://hal.archives-ouvertes.fr/hal-00022430/document; https://hal.archives-ouvertes.fr/hal-00022430/file/05040.pdf |
| DOI: |
10.1016/j.ssc.2005.02.040 |
| Availability: |
https://hal.archives-ouvertes.fr/hal-00022430; https://hal.archives-ouvertes.fr/hal-00022430/document; https://hal.archives-ouvertes.fr/hal-00022430/file/05040.pdf; https://doi.org/10.1016/j.ssc.2005.02.040 |
| Rights: |
info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.104EBADD |
| Database: |
BASE |