Magnetocaloric effect induced by hydrogen absorption in CeNiIn

Jorge Sánchez Marcos (1) , Jesus Rodríguez Fernández (1) , Bernard Chevalier (2) , Jean-Louis Bobet (2)

1 CITIMAC - Departamento de ciencias de la tierra y física de la materia condensada
2 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux

In the intermediate valence (IV) CeNiIn, the Ce ions evolve towards a trivalent state with a ferromagnetic transition at low temperature when hydrogen is interstitially inserted. In this work, we present heat capacity measurements on CeNiInH1.8 carried out under magnetic fields up to H = 90 kOe. The observed λ-anomaly and its evolution with magnetic field confirm the existence of the ferromagnetic transition...

Mots clés: Hydrogenation; Heat capacity; Magnetocaloric effects

Domaines: Matériaux

Jorge Sánchez Marcos, Jesus Rodríguez Fernández, Bernard Chevalier, Jean-Louis Bobet. Magnetocaloric effect induced by hydrogen absorption in CeNiIn. Physica B: Condensed Matter, 2006, 378-380, pp.799-800. ⟨10.1016/j.physb.2006.01.334⟩. ⟨hal-00080022⟩