Evidence for Stable High-Temperature Ferromagnetism in Fluorine-Treated C₆₀

Figure 1

Raman spectra before decomposition of PTFCE showing the C–F vibrations at 1198 cm⁻¹ and 1298 cm⁻¹ and decomposed vapor of PTFCE condensed on a cold slide (bottom) after heating to 160°C showing absence of C–F vibrations.