Kondo Force in Shuttling Devices: Dynamical Probe for a Kondo Cloud
Journal article, 2013

Abstract: We consider the electromechanical properties of a single-electronic device consisting of a movable quantum dot attached to a vibrating cantilever, forming a tunnel contact with a nonmovable source electrode. We show that the resonance Kondo tunneling of electrons amplifies exponentially the strength of nanoelectromechanical (NEM) coupling in such a device and make the latter insensitive to mesoscopic fluctuations of electronic levels in a nanodot. It is also shown that the study of a Kondo-NEM phenomenon provides additional (as compared with standard conductance measurements in a nonmechanical device) information on retardation effects in the formation of a many-particle cloud accompanying the Kondo tunneling. A possibility for superhigh tunability of mechanical dissipation as well as supersensitive detection of mechanical displacement is demonstrated.

Author

M. N. Kiselev

K. A. Kikoin

Leonid Gorelik

Chalmers, Applied Physics, Condensed Matter Theory

Robert I. Shekhter

University of Gothenburg

Physical Review Letters

0031-9007 (ISSN) 1079-7114 (eISSN)

Vol. 110 6 066804-

Subject Categories

Physical Sciences

DOI

10.1103/PhysRevLett.110.066804

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Created

10/6/2017