The electrical behavior of carbon nanotubes under high pressure

✍ Scribed by D.S Tang; Z.X Bao; L.J Wang; L.C Chen; L.F Sun; Z.Q Liu; W.Y Zhou; S.S Xie

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 110 KB
• Volume: 61
• Category: Article
• ISSN: 0022-3697
• DOI: 10.1016/s0022-3697(99)00381-9

✦ Synopsis

The electrical resistance and capacitance of multiwalled carbon nanotubes produced by modified arc discharge were studied under pressure up to 20 GPa on a diamond anvil cell (DAC). The electrical resistance decreases gradually with pressure below 3.21 GPa and shows a bump around 5.0 GPa, and the capacitance exhibits a minimum value at 2.14 GPa, which corresponds to the changes of the electronic structure and lattice constants of carbon nanotubes under pressure. These results were conformed by the synchrotron X-ray diffraction and coincided with the prediction of the theoretical calculation.