A study on the antiferromagnetic behavior of the hydride CeRuGeH adopting the ZrCuSiAs-type structure

Bernard Chevalier (1) , Etienne Gaudin (1) , C. Geibel (2) , N. C. Canales (2) , Wilfried Hermes (2) , Rainer Pöttgen (2)

1 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
2 Institut für Anorganische und Analytische Chemie

The non-magnetic heavy fermion behavior of CeRuGe is destroyed by hydrogen insertion. The resulting hydride CeRuGeH, investigated by magnetization, thermoelectric, electrical resistivity and specific heat measurements, exhibits an antiferromagnetic ordering below TN = 4.0(2) K weakly influenced by the Kondo effect. Below TN, a metamagnetic double transition induced by an applied magnetic field was evidenced for CeRuGeH. This hydride presents a simple field–temperature phase diagram in comparison to that determined for the equivalent compound CeRuSiH.

Mots clés: Inorganic Compounds; Magnetisms; Antiferromagnetism; Hydrides

Domaines: Matériaux

Bernard Chevalier, Etienne Gaudin, C. Geibel, N. C. Canales, Wilfried Hermes, et al.. A study on the antiferromagnetic behavior of the hydride CeRuGeH adopting the ZrCuSiAs-type structure. Journal of Physics: Condensed Matter, 2010, 22 (4), 046003 (5 p.). ⟨10.1088/0953-8984/22/4/046003⟩. ⟨hal-00459851⟩