Scaling of self-stimulated spin echoes

• URL: http://arxiv.org/abs/2309.11169v1
• Date: Wed, 20 Sep 2023 09:28:52 GMT
• Title: Scaling of self-stimulated spin echoes
• Authors: Sebastian de Graaf, Aditya Jayaraman, Sergey Kubatkin, Andrey Danilov, Vishal Ranjan
• Abstract summary: Self-stimulated echoes have been reported in the high cooperativity and inhomogeneous coupling regime of spin ensembles with superconducting resonators. It is demonstrated that self-stimulated echoes primarily result from a combination of two large control pulses and the echo preceding it.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Self-stimulated echoes have recently been reported in the high cooperativity and inhomogeneous coupling regime of spin ensembles with superconducting resonators. In this work, we study their relative amplitudes using echo-silencing made possible by a fast frequency tunable resonator. The highly anisotropic spin linewidth of Er$^{3+}$ electron spins in the CaWO$_4$ crystal also allows to study the dependence on spin-resonator ensemble cooperativity. It is demonstrated that self-stimulated echoes primarily result from a combination of two large control pulses and the echo preceding it.

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