Ferromagnetic behavior of the new hydride CeNiSnH1.8(2)
Langue
en
Article de revue
Ce document a été publié dans
Chemistry of Materials. 2003, vol. 15, n° 11, p. 2181-2185
American Chemical Society
Résumé en anglais
The ternary stannide CeNiSn absorbs hydrogen at 250 C under a pressure of PH2 = 5 MPa. The resulting hydride CeNiSnH1.8(2) crystallizes in the hexagonal ZrBeSi-type structure with a = 0.4392(2) nm and c = 0.8543(2) nm as ...Lire la suite >
The ternary stannide CeNiSn absorbs hydrogen at 250 C under a pressure of PH2 = 5 MPa. The resulting hydride CeNiSnH1.8(2) crystallizes in the hexagonal ZrBeSi-type structure with a = 0.4392(2) nm and c = 0.8543(2) nm as unit cell parameters. Investigation by means of magnetization and electrical resistivity measurements show that (i) CeNiSnH1.8(2) exhibits a ferromagnetic order below TC = 7.0(2) K and (ii) Kondo scattering dominates the electrical properties. This study points out that hydrogenation of CeNiSn provokes a change of the ground state of cerium, from Kondo insulator to ferromagnetic behavior.< Réduire
Mots clés en anglais
Ferromagnetism
Inorganci compounds
CeNiSnH1.8(2)
Hydrides
Origine
Importé de halUnités de recherche