1997/09/18 by Karin M. Rabe, K. M. Rabe, Rabe, K. M. +2
Engineering · Materials Science · Physics and Astronomy · #Intermetallics and Advanced Alloy Properties #Metallurgical and Alloy Processes #Rare-earth and actinide compounds #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.cond-mat/9709211
4 pages, REVTeX, two eps figures
arxiv created 1997/09/18 · arxiv updated 2009/11/30
The fcc-based structure of Yb2.75C60 is unique among metal-doped fullerene compounds, exhibiting long-range-ordered vacancies, significantly off-centered divalent Yb cations, and distorted, crystallographically inequivalent, orientationally ordered C60 anions. A simple electrostatic-energy analysis, which models the constituents using point charges, is shown to provide insight into how each of these features stabilizes this unusual crystal structure. The results have general implications for a variety of other intercalated metal fullerides.