Nanoscale capacitance: a classical charge-dipole approximation

Autor:	Lu, Jun-Qiang, Gonzalez, Jonathan, Sierra, Carlos, Li, Yang
Rok vydání:	2013
Předmět:	Condensed Matter - Materials Science Condensed Matter - Mesoscale and Nanoscale Physics
Zdroj:	AIP Advances, 3, 102104 (2013)
Druh dokumentu:	Working Paper
DOI:	10.1063/1.4824622
Popis:	Modeling nanoscale capacitance presents particular challenge because of dynamic contribution from electrodes, which can usually be neglected in modeling macroscopic capacitance and nanoscale conductance. We present a model to calculate capacitances of nano-gap configurations and define effective capacitances of nanoscale structures. The model is implemented by using a classical atomic charge-dipole approximation and applied to calculate capacitance of a carbon nanotube nano-gap and effective capacitance of a buckyball inside the nano-gap. Our results show that capacitance of the carbon nanotube nano-gap increases with length of electrodes which demonstrates the important roles played by the electrodes in dynamic properties of nanoscale circuits. Comment: 11 pages, 6 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1307.4495 Zobrazit plný text záznamu View this record from Arxiv