Off-Resonant Manipulation of Spins in Diamond via Precessing Magnetization of a Proximal Ferromagnet

Abstract

We report the manipulation of nitrogen vacancy (NV) spins in diamond when nearby ferrimagnetic insulator, yttrium iron garnet, is driven into precession. The change in NV spin polarization, as measured by changes in photoluminescence, is comparable in magnitude to that from conventional optically detected magnetic resonance, but relies on a distinct mechanism as it occurs at a microwave frequency far removed from the magnetic resonance frequency of the NV spin. This observation presents a new approach to transferring ferromagnetic spin information into a paramagnet and then transducing the response into a robust optical signal. It also opens new avenues for studying ferromagnetism and spin transport at the nanoscale.

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References in corpus (2)

• High-sensitivity diamond magnetometer with nanoscale resolution
• Nanoscale magnetic imaging of a single electron spin under ambient conditions

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