Local control of a single nitrogen-vacancy center by nanoscale engineered magnetic domain wall motions

Abstract

Effective control and readout of qubits form the technical foundation of next-generation, transformative quantum information sciences and technologies. The nitrogen-vacancy (NV) center, an intrinsic three-level spin system, is naturally relevant in this context due to its excellent quantum coherence, high fidelity of operations, and remarkable functionality over a broad range of experimental conditions. It is an active contender for the development and implementation of cutting-edge quantum technologies. Here, we report magnetic domain wall motion driven local control and measurements of NV spin properties. By engineering the local magnetic field environment of an NV center via nanoscale reconfigurable domain wall motions, we show that NV photoluminescence, spin level energies, and coherence time can be reliably controlled and correlated to the magneto-transport response of a magnetic device. Our results highlight the electrically tunable dipole interaction between NV centers and nanoscale magnetic structures, providing an attractive platform to realize interactive information transfer between spin qubits and non-volatile magnetic memory in hybrid quantum spintronic systems.

arXiv comment13 pages, 5 figures

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Cited by in corpus (4)

• Coherent Driving of a Single Nitrogen Vacancy Center by a Resonant Magnetic Tunnel Junction
• Nanoscale magnetometry of a synthetic three-dimensional spin texture
• Chirality reversal at finite magnetic impurity strength and local signatures of a topological phase transition
• Spin-qubit Noise Spectroscopy of Magnetic Berezinskii-Kosterlitz-Thouless Physics