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arXiv 1901.03043cond-mat.mes-hallcond-mat.mtrl-sci
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用于高灵敏度质量传感器的基于边缘模式的石墨烯纳米机械谐振器

Edge mode based graphene nanomechanical resonators for high-sensitivity mass sensor

Guang-Rong Han, Jin-Wu Jiang

摘要:

我们进行了分子动力学模拟和理论分析,以研究基于石墨烯纳米机械谐振器的质量传感器的灵敏度,这是致动以下的全球扩展模式或本地化的边缘模式。我们发现,对应于边缘模式的质量检测灵敏度是约三倍高于对应于扩展模式。我们的分析推导表明,灵敏度的增强源于边缘模式的有效质量的减少,由于其本地化功能。

英文摘要:

We perform both molecular dynamics simulations and theoretical analysis to study the sensitivity of the graphene nanomechanical resonator based mass sensors, which are actuated following the global extended mode or the localized edge mode. We find that the mass detection sensitivity corresponding to the edge mode is about three times higher than that corresponding to the extended mode. Our analytic derivations reveal that the enhancement of the sensitivity originates in the reduction of the effective mass for the edge mode due to its localizing feature.

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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