Polymerized phase and amorphous diamond synthesized from fullerene by shock compression

摘要

C_(60) fullerene films were shock compressed to 23 and 52 GPa. Both the recovered samples exhibit fracture into platelets and broad photoluminescence, and intensity of these increases with increasing pressure. At 23 GPa, a characteristic single broad band appears at 1560-1570 cm~(-1), which is similar to the one found for three-dimensional (3D) polymerized C_(60) fullerene under high-pressure-high-temperature treatment. At 52 GPa, on the other hand, the single broad band has disappeared and a diamond peak sometimes appears, depending on platelets.