Occurence of ferromagnetic transition on hydrogen insertion in the ternary indide CeNiIn
Résumé
Letter to the editor : The hydride CeNiInH1.8(1) has been studied by magnetization measurements. It exhibits a ferromagnetic behaviour below TC = 6.8(2) K. In other words, the insertion of hydrogen in CeNiIn induces a cerium valence transition from intermediate valence to the trivalent state.