Large current noise in nanoelectromechanical systems close to continuous mechanical instabilities
BRÜGGEMANN, Jochen
Dahlem Center for Complex Quantum Systems & Fachbereich Physik
I. Institut für Theoretische Physik [Hamburg]
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Dahlem Center for Complex Quantum Systems & Fachbereich Physik
I. Institut für Theoretische Physik [Hamburg]
BRÜGGEMANN, Jochen
Dahlem Center for Complex Quantum Systems & Fachbereich Physik
I. Institut für Theoretische Physik [Hamburg]
< Reduce
Dahlem Center for Complex Quantum Systems & Fachbereich Physik
I. Institut für Theoretische Physik [Hamburg]
Language
en
Article de revue
This item was published in
Physical Review B: Condensed Matter and Materials Physics (1998-2015). 2012-03-15, vol. 85, n° 12, p. 125441 (1-11)
American Physical Society
English Abstract
We investigate the current noise of nanoelectromechanical systems close to a continuous mechanical instability. In the vicinity of the latter, the vibrational frequency of the nanomechanical system vanishes, rendering the ...Read more >
We investigate the current noise of nanoelectromechanical systems close to a continuous mechanical instability. In the vicinity of the latter, the vibrational frequency of the nanomechanical system vanishes, rendering the system very sensitive to charge fluctuations and, hence, resulting in very large (super-Poissonian) current noise. Specifically, we consider a suspended single-electron transistor close to the Euler buckling instability. We show that such a system exhibits an exponential enhancement of the current noise when approaching the Euler instability which we explain in terms of telegraph noise.Read less <
English Keywords
Electronic transport in nanoscale materials and structures
Micro- and nano-electromechanical systems (MEMS/NEMS) and devices
Nanotubes and nanowires
ANR Project
Nano Mécanique Quantique - ANR-10-BLAN-0404
Origin
Hal imported