Effect of rare earth filling on unfilled skutterudite compound CoSb3

We have succeeded in synthesizing the filled skutterudite compound PrxCo4Sb12 under high pressures. Pr site filling factor was estimated to be about 50+/-10% by powder X-ray diffraction and chemical composition analysis using field emission electron microscope. Apparent expansion of lattice constant...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2007-03, Vol.310 (2), p.1715-1717
Main Authors: TANAKA, Kenya, SEKIHARA, Yuko, KAWAHITO, Yusuke, KIKUCHI, Daisuke, AOKI, Hidekazu, KUWAHARA, Keitaro, AOKI, Yuji, SUGAWARA, Hitoshi, SATO, Hideyuki
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Critical-point effects, specific heats, short-range order
Domain effects, magnetization curves, and hysteresis
Exact sciences and technology
Magnetic properties and materials
Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects
Physics
Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.)
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Summary:We have succeeded in synthesizing the filled skutterudite compound PrxCo4Sb12 under high pressures. Pr site filling factor was estimated to be about 50+/-10% by powder X-ray diffraction and chemical composition analysis using field emission electron microscope. Apparent expansion of lattice constant compared to that of CoSb3 is also indirect evidence of successful filling of Pr-ions. In the magnetization and specific heat measurements, no anomaly suggesting phase transition has been found down to 2K.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2006.10.544