Author/Authors :
van den Heuvel، نويسنده , , D.J. and Chan، نويسنده , , I.Y. and Groenen، نويسنده , , E.J.J. and Matsushita، نويسنده , , M. and Schmidt، نويسنده , , J. and Meijer، نويسنده , , G.، نويسنده ,
Abstract :
Well-resolved fluorescence spectra are reported for single crystals of C60 at 1.2 K. The fluorescence is found to be composed of two contributions. Fluorescence-microwave double-resonance experiments indicate that the dominant component originates from deep X-traps that consists of pairs of C60 molecules. The minor component most likely derives from shallow monomolecular C60 X-traps.