Superconducting pumping of nanomechanical vibrations

Gustav Sonne, Robert I. Shekhter, Leonid Y. Gorelik, Sergei I. Kulinich, Mats Jonson

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Abstract

We demonstrate that a supercurrent can pump energy from a battery that provides a voltage bias into nanomechanical vibrations. Using a device containing a nanowire Josephson weak link as an example we show that a nonlinear coupling between the supercurrent and a static external magnetic field leads to a Lorentz force that excites bending vibrations of the wire at resonance conditions. We also demonstrate the possibility to achieve more than one regime of stationary nonlinear vibrations and how to detect them via the associated dc Josephson currents and we discuss possible applications of such a multistable nanoelectromechanical dynamics. © 2008 The American Physical Society.

Original languageEnglish
Article number144501
JournalPhysical Review B: Condensed Matter and Materials Physics
Volume78
Issue number14
DOIs
Publication statusPublished - 2 Oct 2008

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    Sonne, G., Shekhter, R. I., Gorelik, L. Y., Kulinich, S. I., & Jonson, M. (2008). Superconducting pumping of nanomechanical vibrations. Physical Review B: Condensed Matter and Materials Physics, 78(14), [144501]. https://doi.org/10.1103/PhysRevB.78.144501