Abstract
The C60 single crystals up to mm-size were grown. X-ray diffraction result shows that C60 single crystal is of fcc structure, with lattice parameter of 1.413 nm. An abrupt change of conductivity (at 251K) related to the phase transition shows that C60 single crystal is of high purity and homogeneity. A drop of activation energy around 274K was observed. This activation energy drop may be an indication of another phase transition.
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