Ferromagnetic Ordering in Alkali-Metal Iron Antimonides:NaFe4Sb12and… | Zendy

Andreas LeitheJasper | Zendy; Walter Schnelle | Zendy; H. Rösner | Zendy; N. Senthilkumaran | Zendy; A. Rabis | Zendy; M. Baenitz | Zendy; A.A. Gippius | Zendy; Е. Н. Морозова | Zendy; J. A. Mydosh | Zendy; Yuri Grin | Zendy

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Ferromagnetic Ordering in Alkali-Metal Iron Antimonides:NaFe4Sb12and…

Author(s) -

Andreas LeitheJasper,

Walter Schnelle,

H. Rösner,

N. Senthilkumaran,

A. Rabis,

M. Baenitz,

A.A. Gippius,

Е. Н. Морозова,

J. A. Mydosh,

Yuri Grin

Publication year - 2003

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.91.037208

Subject(s) - ferromagnetism , skutterudite , materials science , alkali metal , condensed matter physics , magnetization , physics , ground state , electrical resistivity and conductivity , crystallography , chemistry , magnetic field , atomic physics , thermoelectric materials , quantum mechanics

New alkali-metal compounds with the filled-skutterudite structure were synthesized and their chemical and physical properties investigated. X-ray diffraction, microprobe, and chemical analysis established the structure and the composition without defects on the cation site. Magnetization, ac susceptibility, specific heat, resistivity, and NMR or NQR demonstrated NaFe4Sb12 to be ferromagnetic below approximately 85 K and to exhibit an additional magnetic anomaly around 40 K. Band structure calculations find a large density of states at the Fermi energy and a ferromagnetic ground state. Similar behavior was observed for KFe4Sb12.

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