Magnetic damping of a carbon nanotube NEMS resonator

Abstract

A suspended, doubly clamped single wall carbon nanotube is characterized at cryogenic temperatures. We observe specific switching effects in dc-current spectroscopy of the embedded quantum dot. These have been identified previously as nano-electromechanical self-excitation of the system, where positive feedback from single electron tunneling drives mechanical motion. A magnetic field suppresses this effect, by providing an additional damping mechanism. This is modeled by eddy current damping, and confirmed by measuring the resonance quality factor of the rf-driven nano-electromechanical resonator in an increasing magnetic field.

arXiv comment8 pages, 3 figures

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Cited by in corpus (21)

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• Nanomechanical characterization of the Kondo charge dynamics in a carbon nanotube
• Magnetic effects on nonlinear mechanical properties of a suspended carbon nanotube
• Charge-vibration interaction effects in normal-superconductor quantum dots
• Negative frequency tuning of a carbon nanotube nano-electromechanical resonator
• Liquid-induced damping of mechanical feedback effects in single electron tunneling through a suspended carbon nanotube
• Single-parameter adiabatic charge pumping in carbon nanotube resonators
• Stability of long-sustained oscillations induced by electron tunneling
• Self-driven oscillation in Coulomb blockaded suspended carbon nanotubes
• Towards carbon nanotube growth into superconducting microwave resonator geometries
• Magnetic field control of the Franck-Condon coupling of few-electron quantum states
• Nano-mechanics driven by Andreev tunneling
• Carbon Nanotube Millikelvin Transport and Nanomechanics
• From Transparent Conduction to Coulomb Blockade at Fixed Hole Number
• Creating arbitrary quantum vibrational states in a carbon nanotube
• Optomechanical coupling and damping of a carbon nanotube quantum dot
• Nanomechanics driven by the superconducting proximity effect
• Pumping and cooling of nanomechanical vibrations generated by Cooper pair exchange