We report x-ray-diffraction studies on RbxC60 samples of nominal composition ranging from x=1.5 to 6. After six weeks of annealing at 200° C, we observe well-defined stoichiometric compounds RbnC60 with n=0 (pure C60), 3, 4, and 6, and refine the corresponding face-centered cubic, body-centered tetragonal, and body-centered cubic structures. Evidence is found for a fifth compound as well. The n=3 and 6 structures are analogous to the corresponding KnC60 compounds.
ASJC Scopus subject areas
- Condensed Matter Physics