Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1627818 | Journal of Alloys and Compounds | 2006 | 6 Pages |
Abstract
In filled skutterudites, which have attracted much attention as candidate materials for thermoelectric applications, rare Pr-based heavy-fermion (HF) behaviors have been revealed recently. We review recent studies focusing on PrFe4P12 and PrOs4Sb12; the former shows HF behaviors in high-fields where a quadruple ordering is suppressed, and the latter shows the first known Pr-based HF superconductivity as well as an anomalous field-induced quadruple ordering. We suggest that quadrupole degrees of freedom on the Pr-ions commonly play key roles in these exotic states.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Yuji Aoki, Hitoshi Sugawara, Hideyuki Sato,