On the coupling between magnetoelastic waves and nitrogen vacancy centers in diamond

Author:

Jung Adi1ORCID,Margueron Samuel2ORCID,Bartasyte Ausrine23ORCID,Salahuddin Sayeef1ORCID

Affiliation:

1. Department of Electrical Engineering, University of California 1 , Berkeley, California 94704, USA

2. FEMTO-ST Institute, University of Franche-Comté ENSMM 2 , 26 rue de l'Epitaphe, Besancon 25030, France

3. Institut Universitaire de France 3 , Paris 75231, France

Abstract

We show that a coupling exists between nitrogen vacancy (NV) centers in diamond in proximity to magnetoelastic spin waves generated by a voltage driven surface acoustic wave. Experimental measurements show the presence of coupling driven by both dipolar fields induced by a spin wave-like excitation and off-resonant coupling of the NV energy levels driven by acoustically driven ferromagnetic resonance dynamics. A model is proposed based on chiral coupling of the NV centers to the stray field that originates from a propagating magnetoelastic wave in a thin magnet, and model predictions are validated by experimental observations. Understanding of the coupling enables a direct measurement of the stray field polarization, which in turn provides a detailed picture of the resonantly coupled magnon–phonon interaction.

Funder

National Science Foundation

EIPHI Graduate School

Publisher

AIP Publishing

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