Self-sustained oscillations in nanoelectromechanical systems induced by Kondo resonance

Taegeun Song, Mikhail N. Kiselev, Konstantin Kikoin, Robert I. Shekhter, Leonid Y. Gorelik

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


We investigate the instability and dynamical properties of nanoelectromechanical systems represented by a single-electron device containing movable quantum dots attached to a vibrating cantilever via asymmetric tunnel contacts. The Kondo resonance in electron tunneling between the source and shuttle facilitates self-sustained oscillations originating from the strong coupling of mechanical and electronic/spin degrees of freedom. We analyze a stability diagram for the two-channel Kondo shuttling regime due to limitations given by the electromotive force acting on a moving shuttle, and find that the saturation oscillation amplitude is associated with the retardation effect of the Kondo cloud. The results shed light on possible ways to experimentally realize the Kondo-cloud dynamical probe by using high mechanical dissipation tunability as well as supersensitive detection of mechanical displacement.

Original languageEnglish
Article number033043
JournalNew Journal of Physics
StatePublished - 1 Jan 2014
Externally publishedYes


  • nanomechanics
  • resonance scattering
  • self-sustained oscillations

ASJC Scopus subject areas

  • Physics and Astronomy (all)


Dive into the research topics of 'Self-sustained oscillations in nanoelectromechanical systems induced by Kondo resonance'. Together they form a unique fingerprint.

Cite this