Transport, magnetic and thermal properties of amorphous and crystallized Ce2Ni2Ga ternary gallide
Langue
en
Article de revue
Ce document a été publié dans
Journal of Alloys and Compounds. 2008, vol. 463, n° 1-2, p. 569-575
Elsevier
Résumé en anglais
Ce2Ni2Ga has been prepared in both amorphous and crystallized form. The first one has been obtained by melt-spinning process. Electrical resistivity, magnetic susceptibility, heat capacity and Seebeck coefficient measurements ...Lire la suite >
Ce2Ni2Ga has been prepared in both amorphous and crystallized form. The first one has been obtained by melt-spinning process. Electrical resistivity, magnetic susceptibility, heat capacity and Seebeck coefficient measurements have been carried out on these two forms. A valence transition from intermediate valence (IV) behavior (crystallized) to a trivalent (Ce3+) behavior (amorphous) of the cerium have been pointed out in this study. Actually, the atomic disorder induces a valence transition visible in magnetic, calorimetric and thermopower measurements. This observation tends to show that the local environment of cerium is changed.< Réduire
Mots clés en italien
Metallic glasses
Kondo effect
Origine
Importé de halUnités de recherche