Magnetic landscape of NbTiN superconducting resonators under radio-frequency excitation
The study investigated how radio-frequency (RF) excitation stimulates magnetic flux avalanches in planar NbTiN superconducting resonators. They found that while weak RF intensity doesn't significantly trigger avalanches, magnetic flux bursts clearly change RF transmission and cause discrete jumps in resonance frequency. This links avalanche events directly to measurable shifts in the resonator's operating characteristics.