An iodine-filled iridium skutterudite compound was obtained by high-pressure and high-temperature reactions at 13 GPa and 850 °C from iodine excess starting mixtures. The structure and iodine content were refined… Click to show full abstract
An iodine-filled iridium skutterudite compound was obtained by high-pressure and high-temperature reactions at 13 GPa and 850 °C from iodine excess starting mixtures. The structure and iodine content were refined by Rietveld analysis. The compound has a lattice constant of 9.3153(6) A and the composition of I0.9Ir4Sb12. This compound contains anionic species in the skutterudite cages, although they are usually occupied by cations. This is, therefore, a rare member in the skutterudite family. Band structure calculations indicate that the compound is a metal with a conduction band highly contributed by iodine 5p orbitals.
               
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