Novel strongly correlated electron states in filled skutterudite lanthanide osmium antimonides

Novel strongly correlated electron states in filled skutterudite lanthanide osmium antimonides

Recent measurements on the filled skutterudite compounds Pr ( Os 1 - x Ru x ) 4 Sb 12 , NdOs 4 Sb 12 , and SmOs 4 Sb 12 are discussed. Pr ( Os 1 - x Ru x ) 4 Sb 12 displays superconductivity for all values of x with a minimum at x = 0.6 , and only the compounds with x < 0.6 display heavy fermion...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Physica. B, Condensed matter Condensed matter, 2005-04, Vol.359, p.830-832
Hauptverfasser: Maple, M.B., Frederick, N.A., Ho, P.-C., Yuhasz, W.M., Sayles, T.A., Butch, N.P., Jeffries, J.R., Taylor, B.J.
Format: Artikel
Sprache:eng
Schlagworte:
Ferromagnetism
Filled skutterudites
formula omitted
Superconductivity
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Recent measurements on the filled skutterudite compounds Pr ( Os 1 - x Ru x ) 4 Sb 12 , NdOs 4 Sb 12 , and SmOs 4 Sb 12 are discussed. Pr ( Os 1 - x Ru x ) 4 Sb 12 displays superconductivity for all values of x with a minimum at x = 0.6 , and only the compounds with x < 0.6 display heavy fermion characteristics, suggesting a competition between the unconventional heavy fermion superconductivity of PrOs 4 Sb 12 and the BCS superconductivity of PrRu 4 Sb 12 . NdOs 4 Sb 12 is a heavy fermion ferromagnet, with a sharp transition observed at 1.0 K. SmOs 4 Sb 12 is also a heavy fermion material, and it may display weak ferromagnetic behavior below 2.6 K.
ISSN:0921-4526
DOI:10.1016/j.physb.2005.01.243