Nonlinear dynamics of a driven nanomechanical single-electron transistor
Kirton, P. G. and Armour, A. D. (2013) Nonlinear dynamics of a driven nanomechanical single-electron transistor. Physical Review B, 87 (15). 155407. ISSN 1098-0121 (https://doi.org/10.1103/PhysRevB.87.155407)
Preview |
Text.
Filename: Kirton_Armour_PRB_2013_Nonlinear_dynamics_of_a_driven_nanomechanical_single_electron_transistor.pdf
Final Published Version Download (818kB)| Preview |
Abstract
We analyze the response of a nanomechanical resonator to an external drive when it is also coupled to a single-electron transistor (SET). The interaction between the SET electrons and the mechanical resonator depends on the amplitude of the mechanical motion leading to a strongly nonlinear response to the drive which is similar to that of a Duffing oscillator. We show that the average dynamics of the resonator is well described by a simple effective model which incorporates damping and frequency renormalization terms which are amplitude dependent. We also find that for a certain range of parameters the system displays interesting bistable dynamics in which noise arising from charge fluctuations causes the resonator to switch slowly between different dynamical states.
-
-
Item type: Article ID code: 71393 Dates: DateEvent9 April 2013PublishedSubjects: Science > Physics Department: Faculty of Science > Physics Depositing user: Pure Administrator Date deposited: 07 Feb 2020 11:54 Last modified: 14 Apr 2024 00:51 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/71393