Damping in a Superconducting Mechanical Resonator
arXiv:1703.05912 · doi:10.1209/0295-5075/117/57008
Abstract
We study a mechanical resonator made of aluminum near the normal to super conductivity phase transition. A sharp drop in the rate of mechanical damping is observed below the critical temperature. The experimental results are compared with predictions based on the Bardeen Cooper Schrieffer theory of superconductivity and a fair agreement is obtained.
References in corpus (9)
- Sideband Cooling Micromechanical Motion to the Quantum Ground State
- Circuit cavity electromechanics in the strong coupling regime
- Mechanically mediated microwave frequency conversion in the quantum regime
- Synchronization in an Optomechanical Cavity
- Evidence for the role of normal-state electrons in nanoelectromechanical damping mechanisms at very low temperatures
- Thermal conductance of Nb thin films at sub-kelvin temperatures
- Intermittency in an Optomechanical Cavity Near a Subcritical Hopf Bifurcation
- Time Resolved Phase Space Tomography of an Optomechanical Cavity
- Mechanical dissipation in MoRe superconducting metal drums