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arXiv 1010.0508cond-mat.mes-hall
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利用有序和无序石墨烯纳米谐振器中的相干输运进行纳米机械位移检测

Nanomechanical displacement detection using coherent transport in ordered and disordered graphene nanoribbon resonators

A. Isacsson

摘要:

石墨烯纳米带提供了将相位相干传输现象与纳米机电系统(NEMS)集成的机会。由于石墨烯纳米晶体谐振器中的偏转引起的应变,相干电子输运和机械变形耦合。由于石墨烯中的电子具有费米波长λ~ a_0 = 1.4 nm,这种耦合可以用于扶手椅型和锯齿型石墨烯纳米管NEMS中的灵敏位移检测。本文表明,对于长度为L的有序和无序带状系统,由于偏转w引起的应变ε~(w/L)^2导致电导δG/G ~(w^2/a_0L)的相对变化。

英文摘要:

Graphene nanoribbons provide an opportunity to integrate phase-coherent transport phenomena with nanoelectromechanical systems (NEMS). Due to the strain induced by a deflection in a graphene nanoribbon resonator, coherent electron transport and mechanical deformations couple. As the electrons in graphene have a Fermi wavelength λ~ a_0 = 1.4 Å, this coupling can be used for sensitive displacement detection in both armchair and zigzag graphene nanoribbon NEMS. Here it is shown that for ordered as well as disordered ribbon systems of length L, a strain ε~ (w/L)^2 due to a deflection w leads to a relative change in conductance δG/G ~ (w^2/a_0L).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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