Coupling between quantum Hall state and electromechanics in suspended graphene resonator
arXiv:1202.0669 · doi:10.1063/1.3703763
Abstract
Using graphene resonator, we perform electromechanical measurements in quantum Hall regime to probe the coupling between a quantum Hall (QH) system and its mechanical motion. Mechanically perturbing the QH state through resonance modifies the DC resistance of the system and results in a Fano-lineshape due to electronic interference. Magnetization of the system modifies the resonator's equilibrium position and effective stiffness leading to changes in resonant frequency. Our experiments show that there is an intimate coupling between the quantum Hall state and mechanics - electron transport is affected by physical motion and in turn the magnetization modifies the electromechanical response.
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References in corpus (15)
- Two-Dimensional Gas of Massless Dirac Fermions in Graphene
- Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene
- Ultrahigh electron mobility in suspended graphene
- Suspended Graphene: a bridge to the Dirac point
- A tunable carbon nanotube electromechanical oscillator
- An Atomic-resolution nanomechanical mass sensor
- Performance of Monolayer Graphene Nanomechanical Resonators with Electrical Readout
- Nonlinear damping in mechanical resonators based on graphene and carbon nanotubes
- Current-induced cleaning of graphene
- Strong coupling between single-electron tunneling and nano-mechanical motion
- Imaging mechanical vibrations in suspended graphene sheets
- The Nature of Quantum Hall States near the Charge Neutral Dirac Point in Graphene
- Probing thermal expansion of graphene and modal dispersion at low-temperature using graphene NEMS resonators
- Digital and FM demodulation of a doubly-clamped single wall carbon nanotube oscillator: towards a nanotube cell phone
- Radio frequency electrical transduction of graphene mechanical resonators
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- Nanomechanical vibrational response from electrical mixing measurements