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1997•Chemistry LettersRequires access

Rietveld Analysis of the Superconducting NaxHyC60

Chikako Nakano, Kenichi Imaeda, Jonas Kröber, Hiroo Inokuchi

Open publisher page 8 citations

Abstract

Abstract The room temperature structure of a superconducting phase of NaxHyC60 was determined from the analysis of its powder X-ray diffraction pattern by the Rietveld method. THe space group is Fm3m, with Z=4, and the refined cell parameter a is 14.406(1) Å. Na+ ions in the octahedral and tetrahedral interstitial sites are offcentered. From their occupancies, the composition x is estimated at 3.6.

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Abstract The room temperature structure of a superconducting phase of NaxHyC60 was determined from the analysis of its powder X-ray diffraction pattern by the Rietveld method. THe space group is Fm3m, with Z=4, and the refined cell parameter a is 14.406(1) Å. Na+ ions in the octahedral and tetrahedral interstitial sites are offcentered. From their occupancies, the composition x is estimated at 3.6.

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Available abstract

Abstract The room temperature structure of a superconducting phase of NaxHyC60 was determined from the analysis of its powder X-ray diffraction pattern by the Rietveld method. THe space group is Fm3m, with Z=4, and the refined cell parameter a is 14.406(1) Å. Na+ ions in the octahedral and tetrahedral interstitial sites are offcentered. From their occupancies, the composition x is estimated at 3.6.

Key concepts: Chemistry, Rietveld refinement, Crystallography, Superconductivity, X-ray crystallography, Crystal structure, Condensed matter physics, Diffraction

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