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Kondo Force in Shuttling Devices: Dynamical Probe for a Kondo Cloud | | M.N. Kiselev
; K.A. Kikoin
; L.Y. Gorelik
; R.I. Shekhter
; | | Date: |
20 Jun 2012 | | Abstract: | We consider electromechanical properties of a single-electronic device
consisting of movable quantum dot attached to a vibrating cantilever, forming a
tunnel contact with a non-movable source electrode. We show that the resonance
Kondo tunneling of electrons amplify exponentially the strength of
nanoelectromechanical (NEM) coupling in such device and makes the latter to be
insensitive to mesoscopic fluctuations of electronic levels in a nano-dot. It
is also shown that the study of Kondo-NEM phenomenon provides an additional (as
compared with a standard conductance measurements in a non-mechanical device)
information on retardation effects in formation of many-particle cloud
accompanied the Kondo tunneling. A possibility for superhigh tunability of
mechanical dissipation as well as supersensitive detection of mechanical
displacement is demonstrated. | | Source: | arXiv, 1206.4435 | | Services: | Forum | Review | PDF | Favorites | |
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