Hydrogenation inducing ferromagnetism in the ternary antiferromagnet NdCoSi - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Inorganic Chemistry Année : 2010

Hydrogenation inducing ferromagnetism in the ternary antiferromagnet NdCoSi

Résumé

The hydride NdCoSiH obtained by exposure at 523 K of the ternary antiferromagnet NdCoSi under a pressure of 4 MPa of hydrogen crystallizes in the tetragonal ZrCuSiAs-type structure where H atoms occupy the tetrahedral [Nd4] site. The hydrogenation induces an increase in the unit cell volume close to 6%. The investigation of NdCoSiH by magnetization measurements reveals its ferromagnetic behavior below TC = 20.5(5) K. Neutron powder diffraction shows that the TC temperature is associated with a ferromagnetic arrangement of the Nd moments (2.3(2) μB at 1.5 K) parallel to the c axis as observed for NdFeSi. The magnetic properties, magnetic structure, and the value of the Nd ordered magnetic moment evidenced for NdCoSiH are discussed using both band structure calculations and a comparison with the behavior of NdCoSi and NdFeSi.
Fichier principal
Vignette du fichier
2010-073_tap.pdf (4.04 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-00491008 , version 1 (08-03-2024)

Identifiants

Citer

Sophie Tencé, Samir F. Matar, Gilles André, Etienne Gaudin, Bernard Chevalier. Hydrogenation inducing ferromagnetism in the ternary antiferromagnet NdCoSi. Inorganic Chemistry, 2010, 49 (11), pp.4836-4842. ⟨10.1021/ic902079u⟩. ⟨hal-00491008⟩
73 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More