Unusually short Ce-Ru distances in CeRuAl and related compounds
Idioma
en
Article de revue
Este ítem está publicado en
Zeitschrift fur Naturforschung B. 2009, vol. 64, n° 8, p. 901-908
Verlag der Zeitschrift Fuer Naturforschung
Resumen en inglés
The aluminide CeRuAl with orthorhombic LaNiAl-type structure contains two crystallographically independent cerium sites which both exhibit relatively short Ce–Ru distances, i. e. 280 – 302 pm for Ce1 and 286 – 310 pm for ...Leer más >
The aluminide CeRuAl with orthorhombic LaNiAl-type structure contains two crystallographically independent cerium sites which both exhibit relatively short Ce–Ru distances, i. e. 280 – 302 pm for Ce1 and 286 – 310 pm for Ce2. Susceptibility measurements show intermediate valence behavior of the cerium atoms (1.19(1) μB per formula unit) and no magnetic ordering down to 2 K. Chemical bonding analysis reveals a non-magnetic ground state and strong Ce–Ru bonding. The Ce–Ru bonding peculiarities of CeRuAl are discussed in line with those of other binary and ternary cerium–ruthenium compounds.< Leer menos
Palabras clave en inglés
Cerium
Ruthenium
Intermediate Valence
Magnetic Properties
Electronic Structure
Orígen
Importado de HalCentros de investigación