SKIFFS: Superconducting Kinetic Inductance Field-Frequency Sensors for Sensitive Magnetometry in Moderate Background Magnetic Fields
arXiv:1807.09860 · doi:10.1063/1.5049615
Abstract
We describe sensitive magnetometry using lumped-element resonators fabricated from a superconducting thin film of NbTiN. Taking advantage of the large kinetic inductance of the superconductor, we demonstrate a continuous resonance frequency shift of MHz for a change in magnetic field of T within a perpendicular background field of 60 mT. By using phase-sensitive readout of microwaves transmitted through the sensors, we measure phase shifts in real time with a sensitivity of degree/nT. We present measurements of the noise spectral density of the sensors, and find their field sensitivity is at least within one to two orders of magnitude of superconducting quantum interference devices operating with zero background field. Our superconducting kinetic inductance field-frequency sensors enable real-time magnetometry in the presence of moderate perpendicular background fields up to at least 0.2 T. Applications for our sensors include the stabilization of magnetic fields in long coherence electron spin resonance measurements and quantum computation.
arXiv comment5 pages, 4 figures with 2-page supplementary material
References in corpus (20)
- Superconducting nanowire single-photon detectors: physics and applications
- Dynamical decoupling and noise spectroscopy with a superconducting flux qubit
- Storing quantum information for 30 seconds in a nanoelectronic device
- Electron Spin-Relaxation Times of Phosphorus Donors in Silicon
- High Kinetic Inductance Superconducting Nanowire Resonators for Circuit QED in a Magnetic Field
- Geometry-dependent critical currents in superconducting nanocircuits
- Tunable superconducting nanoinductors
- Model for l/f Flux Noise in SQUIDs and Qubits
- Dynamical decoupling sequence construction as a filter-design problem
- Experimental Uhrig Dynamical Decoupling using Trapped Ions
- Coherence of Spin Qubits in Silicon
- Operation of a titanium nitride superconducting microresonator detector in the nonlinear regime
- Critical-Current Reduction in Thin Superconducting Wires Due to Current Crowding
- Frequency-tunable Superconducting Resonators via Nonlinear Kinetic Inductance
- Kinetic Inductance Magnetometer
- A fluxonium-based artificial molecule with a tunable magnetic moment
- Ultra-Broadband Microwave Frequency-Comb Generation in Superconducting Resonators
- Multi-frequency Spin Manipulation Using Rapidly Tunable Superconducting Coplanar Waveguide Microresonators
- Vibration-induced field fluctuations in a superconducting magnet
- Ultraviolet, Optical, and Near-IR Microwave Kinetic Inductance Detector Materials Developments