We have constructed and operated a nanoscale linear motor powered by a single metal nanocrystal ram sandwiched between mechanical lever arms. Low-level electrical voltages applied to the carbon nanotube lever arms cause the nanocrystal to grow or shrink in a controlled manner. The length of the ram is adjustable from 0 to more than 150 nm, with extension speeds exceeding 1900 nm/s. The thermodynamic principles governing motor operation resemble those driving frost heave, a natural solid-state linear motor.
Garry W. Mudd, Simon A. Svatek, Lee Hague, O. Makarovsky, Z. R. Kudrynskyi, Christopher J. Mellor, Peter H. Beton, L. Eaves, Konstantin ‘kostya’ Novoselov, Z. D. Kovalyuk, Evgeny E. Vdovin, Alexander J. Marsden, Neil R. Wilson, A. Patanè
Robert L. Whetten, Joseph T. Khoury, Marcos M. Alvarez, Srihari Murthy, Igor Vezmar, Zhong Lin Wang, Peter W. Stephens, C. L. Cleveland, W. D. Luedtke, Uzi Landman
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