The phase diagram of charge- and spin-density waves in polymeric C₆₀

\chem{(C_{60})_{\chemindex{x}}}

at interfullerene distances larger than \approx \valunit{1.5}{\Angstrom}. At smaller ball separation, a special charge-density-wave ground state occurs, which exhibits polarized \chem{C_{60}} spheres. At around experimental bond distances, both CDW and SDW are present with rather small amplitudes.