Nanoscale capacitance: A quantum tight-binding model
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- 作者：Feng Zhaia ; b ; Jian Wuc ; Yang Lid ; Jun-Qiang Lua ; junqiang.lu@upr.edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Nanoscale capacitance ; Nano-gap ; Tight-binding model ; Carbon nanotube ; Quantum capacitance
- 刊名：Physics Letters A
- 出版年：2017
- 出版时间：5 January 2017
- 年：2017
- 卷：381
- 期：1
- 页码：44-47
- 全文大小：1023 K
文摘
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We present a self-consistent tight-binding model for nanoscale capacitance.
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In a carbon nano-gap, electrode capacitance increases with the electrode size.
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Effective capacitance of a nano-device in a nano-gap is converged but rather small.
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The concepts of semi-infinite electrodes and reservoirs may be inapplicable in modeling dynamic transport.