Physics – Condensed Matter – Materials Science
Scientific paper
2002-04-29
Physics
Condensed Matter
Materials Science
Letter with 3 .ps figures
Scientific paper
The nonlinear capacitance in doped nanotube junctions is calculated self consistently. It decreases as a function of the applied bias when the latter becomes larger than the pseudogap of the nanotube. For this device, one can deduce a relaxation time of about 0.1 femtosecond. Because of its negative differential resistance (NDR), a switching time of less than a fs can also be deduced.
Chui Siu Tat
Esfarjani Keivan
Farajian Amir A.
Kawazoe Yoshiyuki
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