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arXiv · 1809.10116

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
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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 echos after a conventional Hahn echo pulse sequence. The presence of these multi-echo 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.

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Stefan Weichselbaumer, Matthias Zens, Christoph W. Zollitsch, Martin S. Brandt, Stefan Rotter, Rudolf Gross, Hans Huebl. 2018-09-26. Echo trains in pulsed electron spin resonance of a strongly coupled spin ensemble. https://doi.org/10.1103/physrevlett.125.137701

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