Echo Trains in Pulsed Electron Spin Resonance of a Strongly Coupled Spin Ensemble
Stefan Weichselbaumer, Matthias Zens, Christoph W. Zollitsch, Martin S. Brandt, Stefan Rotter, Rudolf Groß, Hans Huebl
Abstract
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 echoes after a conventional Hahn echo pulse sequence. The presence of these multiecho signatures is explained using a simple model based on spins rotating on the Bloch sphere, backed up by numerical calculations using the inhomogeneous Tavis-Cummings Hamiltonian.
Topics & Concepts
PhysicsSpinsSpin echoPulse sequencePulsed EPRHamiltonian (control theory)ElectronResonance (particle physics)Condensed matter physicsEcho (communications protocol)Coupling (piping)Atomic physicsNuclear magnetic resonancePulse (music)Spin (aerodynamics)Quantum mechanicsMagnetic resonance imagingMaterials scienceMetallurgyComputer scienceMathematicsThermodynamicsVoltageMedicineRadiologyMathematical optimizationComputer networkAdvanced NMR Techniques and ApplicationsElectron Spin Resonance StudiesAtomic and Subatomic Physics Research