Echo Trains in Pulsed Electron Spin Resonance of a Strongly Coupled Spin Ensemble
Echo Trains in Pulsed Electron Spin Resonance of a Strongly Coupled Spin Ensemble
We report on a novel dynamical phenomenon in electron spin resonance experiments of phosphorus donors. When strongly coupling the paramagnetic ensemble to a superconducting lumped element resonator, the coherent exchange between these two subsystems leads to a train of periodic, self-stimulated echos after a conventional Hahn echo pulse sequence. The …