Electrical and Mechanical Properties of C 70 Fullerene and Graphite under High Pressures Studied Using Designer Diamond Anvils
作者： Jeremy R. Patterson , Shane A. Catledge , Yogesh K. Vohra , Jagannadham Akella , Samuel T. Weir
DOI: 10.1103/PHYSREVLETT.85.5364
关键词: Electrical resistivity and conductivity 、 Amorphous carbon 、 Materials science 、 Nanotechnology 、 Phase (matter) 、 Graphite 、 Amorphous solid 、 Diamond 、 Electrical resistance and conductance 、 Analytical chemistry 、 Fullerene
摘要: We compare electrical and mechanical properties of ${\mathrm{C}}_{70}$ fullerene with high purity graphite to $48\mathrm{GPa}$ at room temperature using designer diamond anvils embedded microprobes. The resistance shows a minimum $20\mathrm{GPa}$ transformation an amorphous insulating phase complete above $35\mathrm{GPa}$, while remains conducting. Nanoindentation hardness values 220 times larger for the pressure quenched than similarly treated graphite. Our studies establish that carbon produced from has unique not attainable
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