Sm-based Filled Skutterudite Phosphides SmT 4 P 12 ( T = Fe , Ru, Os) Studied by 31 P-NMR and μ SR

• Published in: The Journal of physics and chemistry of solids Vol. 68; no. 11; pp. 2080 - 2083
• Main Authors: Hachitani, K., Amanuma, H., Fukazawa, H., Kohori, Y., Watanabe, I., Koyama, K., Kumagai, K., Sekine, C., Shirotani, I.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.11.2007
• Subjects: D. [formula omitted]P-NMR (nuclear magnetic resonance); D. 31 P-NMR (nuclear magnetic resonance)
• ISSN: 0022-3697; 1879-2553
• DOI: 10.1016/j.jpcs.2007.08.033

The Sm-based filled skutterudite phosphides SmT 4 P 12 ( T = Fe , Ru, Os) have been studied by 31 P-NMR (nuclear magnetic resonance) and μ SR (muon spin relaxation). The ferromagnetic order and the heavy fermion behavior in SmFe 4 P 12 and the antiferromagnetic order in SmOs 4 P 12 were confirmed by 31 P-NMR and μ SR. In SmRu 4 P 12 , a successive anomaly around the metal–insulator transition temperature and around the Néel temperature was observed by 31 P-NMR in high applied magnetic fields. The μ SR results of SmRu 4 P 12 indicate the magnetic order below the metal-insulator transition temperature, which supports the existence of the octupolar order in SmRu 4 P 12 .