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Tuning mechanical modes and influence of charge screening in nanowire resonators

机译:调整纳米线谐振器的机械模式和电荷屏蔽的影响

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摘要

We probe electromechanical properties of InAs nanowire (diameter ~100 nm) resonators where the suspended nanowire is also the active channel of a field-effect transistor. We observe and explain the nonmonotonic dispersion of the resonant frequency with dc gate voltage (V_g~(dc)). The effect of electronic screening on the properties of the resonator can be seen in the amplitude. We observe the mixing of mechanical modes with V_g~(dc). We also experimentally probe and quantitatively explain the hysteretic nonlinear properties, as a function of V_g~(dc), of the resonator using the Duffing equation.
机译:我们研究了InAs纳米线(直径〜100 nm)谐振器的机电特性,其中悬浮的纳米线也是场效应晶体管的有源通道。我们观察并解释了谐振频率与直流栅极电压(V_g〜(dc))的非单调弥散。在振幅上可以看到电子屏蔽对谐振器特性的影响。我们观察到机械模式与V_g〜(dc)的混合。我们还使用Duffing方程实验性地探查并定量解释了谐振器的滞后非线性特性,作为V_g〜(dc)的函数。

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  • 来源
    《Physical review》 |2010年第11期|p.115459.1-115459.7|共7页
  • 作者单位

    Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research,Homi Bhabha Road, Mumbai 400005, India;

    rnDepartment of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research,Homi Bhabha Road, Mumbai 400005, India;

    rnDepartment of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research,Homi Bhabha Road, Mumbai 400005, India;

    rnDepartment of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research,Homi Bhabha Road, Mumbai 400005, India;

    rnDepartment of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research,Homi Bhabha Road, Mumbai 400005, India;

    rnDepartment of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research,Homi Bhabha Road, Mumbai 400005, India;

    rnLASSP, Cornell University, Ithaca, New York 14853, USA;

    rnDepartment of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research,Homi Bhabha Road, Mumbai 400005, India;

    rnDepartment of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research,Homi Bhabha Road, Mumbai 400005, India;

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  • 正文语种 eng
  • 中图分类
  • 关键词

    micro- and nano-electromechanical systems (MEMS/NEMS) and devices; electromechanical resonance; quartz resonators;

    机译:微和纳米机电系统(MEMS / NEMS)和设备;机电共振石英谐振器;

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