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Nanowire-based very-high-frequency electromechanical resonator

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8 Author(s)
Husain, A. ; Departments of Physics, Applied Physics, and Electrical Engineering, California Institute of Technology, Pasadena California 91125 ; Hone, J. ; Postma, Henk W.Ch. ; Huang, X.M.H.
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Fabrication and readout of devices with progressively smaller size, ultimately down to the molecular scale, is critical for the development of very-high-frequency nanoelectromechanical systems (NEMS). Nanomaterials, such as carbon nanotubes or nanowires, offer immense prospects as active elements for these applications. We report the fabrication and measurement of a platinum nanowire resonator, 43 nm in diameter and 1.3 μm in length. This device, among the smallest NEMS reported, has a fundamental vibration frequency of 105.3 MHz, with a quality factor of 8500 at 4 K. Its resonant motion is transduced by a technique that is well suited to ultrasmall mechanical structures. © 2003 American Institute of Physics.

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Applied Physics Letters  (Volume:83 ,  Issue: 6 )